Loki timestamp format. It does not index the… Labels from Logs.

Loki timestamp format Add a comment | Hi, I would like to parse a csv and plot its content in Grafana. Hey devops engineer, you don’t need Logtail, Sentry, Datadog or any other SaaS/PaaS service to manage your logs. I’m reading W3C IIS logs on Windows Server 2016 but it doesn’t seem to add the labels that I want to dynamically add in Loki. In the above example, we are querying lines logged by an application called the kubernetes-diff-logger. I use a regular expression to parse the logs and append three labels and a format line. This is a part of my promtail configuration: scrape_configs: - job_name: mylogs pipeline_stages: - timestamp: source: time format: RFC3339 I created a logfile containing these lines: Hello all, This small tutorial explains some of the basics of setting up a log and system monitoring environment. 0. And when we don’t declare timestamp we have some default timestamp which we look for in the drop section. 1; I am trying to parse this timestamp from within my Jellyfin logs: 2021-03-13 00:29:45. how to calculate (LogQL query) the average duration of all calls in each server (host label) ? thanks in advance, JK The module datasource. My promtail config looks like this pipeline_stages: - match: selector: '{job="jellyfin"}' stages: - You seem to believe that logs are being dropped due to time format, why not remove action_on_failure: skip and see if logs are being sent afterwards? Try running promtail The Loki API appears inconsistent in how it handles timestamps: start and end query offsets are numeric, nanosecond-based epoch times "ts" values for logs being pushed in timestamp stage The timestamp stage is an action stage that can change the timestamp of a log line before it is sent to Loki. old logs are not processing, only new ones are getting displayed in grafana. It does not index the Labels from Logs. Example: Time show by Loki 2023-03-27 20:21:19. I am located in the UTC+3 timezone. Cookie Duration Description; cookielawinfo-checkbox-analytics: 11 months: This cookie is set by GDPR Cookie Consent plugin. To Reproduce Steps to reproduce the behavior: Started Loki v1. So that’s why I integrated The 'timestamp' Promtail pipeline stage. Related to #6946. message. When parsing - timestamp: source: syslog_timestamp format: UnixUs system Closed July 17, 2024, 8:10pm 6. loki. How we're doing it for Emilio and how to properly query logs in Grafana and how to parse your log format to easily filter the lines you want to see. The Overflow Blog From bugs to performance to perfection: pushing code quality in mobile apps “You don’t want to be that person”: What I have problems with the trace registration date in loki, I want to use the log date logfilename replacement: '${1}' pipeline_stages: - logfmt: mapping: timestamp: time - timestamp: source time format: RFC3339 config loki . The first stage would create the following key-value pairs in the set of extracted data: output: log message\n; stream: stderr; timestamp: 2019-04-30T02:12:41. Messages should be in JSON format, without timestamp field, and with logger name abbreviated to 20 characters. 05 20220610t133712,5260,78. time duration ip username method message. Add the below to the config file below regex. ① The format key will likely be a format string for Go’s time. Promtail is gathering and sending logs with timestamps that look like there roughly 3h in the future compared to the clock time on the machine running promtail (and likely where you're running Loki as well). g. New("invalid location specified: %v") ErrInvalidActionOnFailure = errors. image 1211×544 30. 000000-07:00 static_configs: - targets: - localhost labels: job: web-access I am trying to parse dates in my log lines. 6. 2: 96: May 24, 2024 Result query grafana not How do we get grafana to use this date format: dd/mm/yyyy hh: mm: ss (timestamp) Time Series Panel. The syntax used by the custom format defines the reference date and time using specific values for each component of the timestamp (i. You switched accounts on another tab or window. And in the timestamp block you want to make sure the source matches a label from your json filter, and the format matches the actual format. name}}] {{. I'm using a toolstack of promtail, loki, grafana running in docker. 989Z In promtail conf we have stage: - timestamp: source: timestamp format: RFC3339 But logs in grafana explore are still in seconds, 2023-09-05 21:52:19 There are no I use the PLG stack (promtail, loki, grafana) If someone needs a solution, the problem was the timestamp format and I made it work by changing the promtail config like this: scrape_configs: - job_name: "service-0 " static_configs: - targets: timestamp: source: http_time location: Europe/Warsaw format: “02/Jan/2006:15:04:05 +0000” action_on_failure: skip; As the result logs are not sent to Loki. 2. So I will move this post to the correct category so that the folks there can help you out. Introduction We will follow the flow of the Nginx logs data until it is timestamp: time_iso8601 - timestamp: source: timestamp format: RFC3339 action_on_failure: 'skip' # In case more apps need to be added # - job_name: nginx_app-name # static _configs: # - targets Using Promtail and Loki to collect your logs is a popular choice. I want Grafana to re-format the message field so it appears without the placeholders in the dashboard and with the actual variable values! Here is a clear example of what I am trying to achieve: { "timestamp": You may submit questions in any of the following ways: On our community forum To our mailing list In #loki in Grafana's Public Slack NOTE: All questions submitted as issues will be closed. Logs f Scenario: The logs are in following format: <SequenceID> <Level> <Message> I have a requirement to sort the logs based on the SequenceID at Grafana. ex: 2021-09-27T06:39:42. rb as I might think the issue is due to pushing the timestamp with a wrong format. ② One of the json elements was “stream” so we extract that I had this issue too and what fixed it for me was adding debug as the default option for Winston, using the log method, and passing a log body with a particular format. I also wish to take into account multiline feature to reassemble such lines. I tried escaping the @ with an entity, single and double quoting the value, but Promtail kept rejecting But the events exported by this exporter have timestamps in RFC3339 combined date-time format. java”, then formats the line to return only the ‘class’ field. I’ve attempted to use the The timestamp stage is an action stage that can change the timestamp of a log line before it is sent to Loki. For the UNIX timestamp I supplied it as both a string and an integer. time-selection, timestamp. It makes iterating over logs trouble-free, and they are trivial to process: e. 29:1019, Loki is a horizontally-scalable, highly-available, multi-tenant log aggregation system inspired by Prometheus. ObservedTimestamp, based on which one is set. message}}` |= `$search` I’ve tried supplying the timestamp in both UNIX and RFC3339 formats. Other CRI runtimes like CRI-O may also support this same format, but I am not sure. (To try to link Loki with Grapana) Parsing and labeling of the first "access logs" is fine. I'm currently using zerolog for my logging package and they can output microsecond timestamps. 8443515; extra: {"user": "marco"}; The second stage will parse the value of extra from the extracted data as JSON and append the following key-value pairs to the set of extracted data:. Like Prometheus, but for logs. 0] Screenshots, Promtail config, or terminal output Documentation for the Logging operator A JSON field name to use for timestamp: format. When a timestamp stage is not present, the timestamp of a log line defaults to the time when the log entry is Timestamp component Format value; Year: 06, 2006: Month: 1, 01, Jan, January: Day: 2, 02, _2 (two digits right justified Is your feature request related to a problem? Please describe. Assign extracted fields (eventType and level) as Loki labels for Deliver log event data to the Loki aggregation system In LogQL line_format template expression, is there a way to access the original log entry grafana-loki; or ask your own question. We've tried various solutions, however the time has become unusable as it's so off. Unlike most stages, the cri stage provides no configuration options and only supports the specific CRI log format. A query over a label from the list also returns no results: “No data”. Specifically, I noticed that when attempting to send a certain log to Loki, a 400 bad request is returned, but I don’t have any evidence in the writer logs even when setting everything to debug level. Using the config below, I was trying to invoke promtail on the example logs in order to test out my scrape pipeline which attempts to parse the json and extract the timestamp from “mulog/timestamp”, using the following Thanks Danny, appreciate it, am still not able to fix it. loki, transformations, logql. If you pass Promtail the flag -print-config-stderr or -log-config-reverse-order, (or -print-config-stderr=true) Promtail will dump the entire config Describe the bug When I use a custom pattern in timestamp stage, it is unable to parse the timestamp correctly. I’ve previously wrote an article on how to centralize and easily query logs with Promtail + Loki + Grafana. I’m not sure how to read the content of positions. 1 ignores/doesn't parse a custom format value in the timestamp stage. loki allows get data from sources, which support query language LogQL by Grafana Loki. I new to C++ and I know that C++ doesn't support us a lot via a library like Java. yaml) which contains information on the Loki server and its individual components, depending on which mode Loki is launched in. match. New("timestamp format is required") ErrInvalidLocation = errors. I will solve this out-of-order problem by introducing a timestamp stage Hi, We are using grafana and loki in kubernetes. My loki is out of order because the time of promtail is not the time in the log, but the system time. - timestamp: source: date format: 2006-01-02T15:04:05. LogQL is Grafana Loki’s PromQL-inspired query language. 0 Started Promtail v1. 000000-07:00 I suspect it’s because -07:00 is not listed in the Promtail timestamp stage documentation, so I’m trying to use a template stage to remove the I have log files with an almost RFC3339Nano formatted timestamp. To Reproduce: I start the programms with docker-compose: Grafana Loki. Home / Projects / Downloads / About / CV / Contact / Search 4 min read Nginx, Loki, Promtail and Grafana November 9, 2021. Parse or a format string for strptime, this still needs to be decided, but the idea would be to specify a format string used to extract the timestamp data, for the regex parser there would also need to be a expr key used to extract the timestamp. 1, loki v1. Tagged with grafana, loki, monitoring, docker. limits_config: reject_old_samples: false Introduction. but not sure how to create extra label for log level from specific pod logs to query in grafana. How we’re doing it for Emilio and how to properly query logs in Grafana and how to parse your log format to easily filter the lines you want to see. I have promtail to send the logs, and in our application we have all json logs with the timestamp of the format: 2023-09-05T21:52:19. 000000Z However, when doing Loki/Promtail: Parse timestamp in pipeline doesn't work. For example these 3 Loki json logs filter by detected fields from grafana. This issue is about this use case: it's a very legit use case and also pretty common in my experience, reason why I believe we should offer a solution. format: Hello everyone. Hello everybody, I am wrestling with my new installation of Promtail-Loki-Grafana to obtain a graph from Fail2ban showing the amount of detection by IP. Column 2: The timestamp of when the log line was scraped by Promtail (I could use the timestamp from the log line itself by using the timestamp stage in the Promtail config pipeline, I chose not to for simplicity. Once all programs are started, I see in Loki all labels parsed correctly, but no data. In this article, we’ll integrate NestJS with Loki using Winston for logging and Prometheus for exposing metrics. SSS. I’m using grafana enterprise version 10 on windows 11 I want to extract the timestamp of the log line , from the line itself , here is a sample log line : 2023-06-13 13:48:26. 4. Printing Loki config at runtime Queried Logs kubernetes-diff-logger. TotalBytesProcessed="0 B" Extract fields (eventType, level, timestamp) from JSON-formatted log lines. How do i get alloy or maybe loki to see the timestamps and other data as it should. auth Format Matrix, vector, and stream. Loki should it accept. I want to exploit my logs with grafana and loki but I have a problem. Loki not accept parsed timestamps cause: sample for 'logs' has timestamp too new. I made changes inside both to my fluentd conf when interpreting @type syslog log file and out_loki. entry The log line which will be stored by loki, the output stage is capable of modifying this value, if no stage modifies this value the log line stored will match what was input to the system and not be modified. 4: The JSON Loki pipeline stage serves as a key component in the Loki log aggregation system. Application generates the log in json format and we have a timestamp in the log itself that I want to use. But there is still bad performance in queries, If i search in logs it takes 1-2 minutes to get results. When working with JSON logs in Loki and Grafana, you may encounter these common issues: Inconsistent JSON structures: Ensure all logs follow a consistent JSON format. It doesn’t replace time. i will try upgrade loki and see if its of any luck. Another option probably is to drop on source e. e. auth Loki supports timestamps in a couple of formats: Unix timestamp in seconds, Unix timestamp in nanoseconds, RFC3339 and RFC3339Nano. To start I would recommend you to parse for only timestamp so your logs are written with the correct time. I want to configure the date format of the timestamp in my log files. That happens to be exactly how redis streams generates its message IDs. This is a simple open source application that logs any changes to a set of Kubernetes objects we want to watch. Configuration examples can be found in the Configuration Examples document. Check your log agent’s documentation on how to set time stamp baed on a string and a format. How can I change the timestamp in the log files? The logs show the time with a three-hour difference. promtail should parse the original RFC3339MICRO timestamp from the syslog message and use that for the original timestamp in LOKI. We’ll demo how to get started using the LGTM Stack: Loki for logs, Grafana for visualization, Tempo for traces, and Mimir for metrics. Asking for help, clarification, or responding to other answers. just don’t reject samples. Queries act as if they are a distributed grep to aggregate log sources. log entry: {timestamp=2019-10- I recently started playing around with Loki, got it set up and accepting logs and now I’m looking at setting up a Grafana dashboard to display the logs. Once the offending Promtail process is restarted Loki starts reporting data at correct timestamps again, no Loki restart required. Grafana Loki stack Loki Stack consists of 3 main components: Loki - log aggregation system responsible for storing the logs and processing queries. When a timestamp stage is not From the log Change timestamp for all log lines to stick with RFC3339 of golang and change format in the yaml file; Remove the comma of milisecond of log line and adjust regex; Set the First parse the log line (usually regex) and extract the timestamp string. If both are not set, the ingestion timestamp will be used. 245 +01:00. Did raspi4 send "Testing a log message" ? Its the same "out of range" timestamp loki complains about. Idea here is to get the timestamp of the log line , compare it with the range that is passed as argument and ensure that the timestamp of the log line falls in betweend the passed arguments. {job=“testbed”} |~ “(START|END)” | pattern “<_> [ID=<id>,CNAME=<cname>,TASK=<taskid>,TARGET=<targetid>]” Time field cannot convert I see. Excerpt from official documentation on how they are interpreted: The API accepts several formats for timestamps. It's milliseconds since epoch. Is it possible to control the timestamp format through the configmap? Until Grafana Loki is supported directly as a receiver, this feature to specify Introduction I've previously wrote an article on how to centralize and easily query logs with Promtail + Loki + Grafana. In your example, it Additionally you can also access the log line using the __line__ function and the timestamp using the __timestamp__ function. I’m working on a very low end system, and I was looking for ways to remove influxdb from my log pipeline, as it can be a bit heavy, especially on memory use. A standard or custom format string can be I have 3 instances, 1 is with target all and grafana installed and 2 with target as read. So I got this from loki: ts=2024-11-15T10:41:45. 2: 180: The timestamp stage is an action stage that can change the timestamp of a log line before it is sent to Loki. The function call must then have one additional argument for each verb sequence in the specification. - timestamp: source: time format: RFC3339Nano action_on_failure: fudge Please suggest is there any solution or workaround Hey, my setup is the following: Rsyslog listening on port 514 listening for relayed messages with spooling, transforms the log into the right format and relays them to port 1514 promtail (as container) listening on port 1514 processing the logdata and sending it to loki loki (also as container) My problem with this setup is that promtail doesn’t seem to preserve the promtail config pipeline_stages. An integer with ten or fewer digits is interpreted as a Unix timestamp in seconds. I also checked Loki and Promtail documentation, including information on Been trying to parse the timestamp from logs using pipeline_stages with the following configs pipeline_stages: - match: selector: '{job="varlogs"}' stages: - regex I'm using promtail to ship my IIS logs to loki and I want to change the timestamp to the timestamp present in my log line. The format of your testing result looks a little bit different to mine but i think thats no problem. This parsing step is crucial for converting raw log data into a format that is amenable to advanced search, filtering, and Troubleshooting Common Issues in Loki JSON Log Filtering. 001 1. Printing Promtail Config At Runtime. adding three 0s to the end of my timestamps and treating them as UnixNs in promtail stage; Getting zerolog to support nanosecond timestamps 😄; Additional context If there's interest on this I can work on the PR for this. I've been looking through documentation, and Grafana, but so far, haven't found a working solution. You signed out in another tab or window. yml but at first glance it seems like it’s scaping stuff alright since I see also logs coming into Grafana Cloud. I am not the best guy to help with the Loki stuff. Regex, Grafana Loki, Promtail: Parsing a timestamp from logs using regex. The main thing is, there is a new logfile generated every day. i read some where, each server should have its own independent stream, but mongos runs in a cluster and they all will send same stream of data, its tough to Loki output plugin Overview Fluentd output plugin to ship logs to a Loki server Kubernetes Events Timestamp; Parser; Prometheus; Record Modifier; Record Transformer; StdOut; SumoLogic; Tag Set of labels to include with every Loki stream. . When trying to set the log entry pipeline as part of a pipeline, promtail complains about “extracted data did not contain a timestamp”. This my timestamp format in logs: 2021-05-17 06:09:51. Of all the countries, none of them has the sane choice for all of the fields, namely: ISO 8601 for dates and times with 24h (no AM/PM), metric system (or SI, whatever), and dot as decimal separator. Thanks This is from /var/log/auth. I have a csv like the following: date,key0,key1 20220610t133612,5260,3. where the difference between queries is timestamp. And now I try to label the traceid. 7314 293092600282 GetPassportFromStorage() GetSensorStatus. To Reproduce create ~/promtail. yml for Promtail: scrape_configs: Does Promtail support this kind of timestamp format? Is there anyway to adapt this kind of format to override the final time value of the log that is stored? Currently, Loki displays the wrong time in Grafana. There is a match step in the snippet above that only executes if the scraped config has key=app and value=nginx . The only way to resume Prometheus operations is to stop and A Vector log event is a structured representation of a point-in-time event. LogLine: LogRecord. 1: 8: November 12, 2024 The format function is most useful when you use more complex format specifications. Unfortunately Hey, my setup is the following: Rsyslog listening on port 514 listening for relayed messages with spooling, transforms the log into the right format and relays them to port 1514 promtail (as container) listening on port 1514 processing the logdata and sending it to loki loki (also as container) My problem with this setup is that promtail doesn’t seem to preserve the Tagged with grafana, loki, monitoring, docker. Grafana Loki is configured in a YAML file (usually referred to as loki. CRI specifies log lines as space-delimited values with the following components: time: The timestamp string of the log; stream: Either stdout or stderr; flags: CRI flags including F or P; log: The contents of the log line; No whitespace is permitted between the components. 4: 62913: February 17, 2024 Yes, all the logs start with level and timestamp and some random thing afterwards. This is a sample snippet of JSON retrieved from the Loki output of all logs in one timestamp: Loki output of other application: If I run live mode in Grafana, I can see logs are transferred to Loki, but I have to set time window that include timestamp where all logs are sent to (2023-05-30 10:00:00 in first picture). A guide to using Loki with Prometheus and Grafana to visualize the OSSEC security application, timestamp format: '2006 Jan 02 15:04:05' location: 'America/New_York' - metrics: # Export a metric of firewall events, it will use Describe the bug If vector() function is used to produce a default value for extracted metrics from logs, it's being sent to prometheus using remote write with bad timestamp. user: marco; Using a JMESPath Literal The module datasource. 7 KB. I want create a query for Loki to find out a timestamp, but I cant extract nsec or msec timestamp from query or dashboard panel. Result experimentally I added timestamp as label, and it was in LOKI the captured group added added in section timestamp doesn’t work Can you please help in this config? How to correct promtail file to have correct date in log? 2024-01-06 b0b is correct in that you don’t want to use Loki like ES. While they were useful in troubleshooting and understanding how the promtail configuration file works, they did not help resolve the problem. Timestamp: "timestamp":"2023-03-25T20:42:51. It was my mistake. It becomes the obvious one, if you already have the kube prometheus stack for monitoring running in your cluster. However I’ve run into a minor issue with how I’d like to set up the panel. This will reduce clutter in the UI when browsing logs and timestamp: t filtered_log: drop("t") # <<< New imaginary function - timestamp: source: timestamp format: RFC3339Nano - output In their format settings, you have to pick a country and that determines the format of dates, time, numbers, and the unit system. Use the captured group as source. Here’s my example. I’m trying to test my promtail config by using the --dry-run option but it seems to be giving output that I wouldn’t expect. - logfmt: mapping: timestamp: time app: duration: unknown: Given the following log line: Copy. Unfortunately Describe the bug We are collecting logs from pods in EKS using Grafana agent and sending the logs to Loki. For now my request is the following : count_over_time({filename In their format settings, you have to pick a country and that determines the format of dates, time, numbers, and the unit system. log 2024-11-07T13:45:01. This is a sample snippet of JSON retrieved from the You signed in with another tab or window. Specification Syntax. A command is a simple value (argument) or a はじめに 今回のスコア Grafana・Loki活用Tips 表示範囲内のログ全てから統計値を計算する レスポンスが遅かったログを特定する スロークエリログの統計値も計算したい I am formatting my timetamps to rfc3339 before sending them off to loki, but loki seems to just set the timestamp to time received of the logs, not the parsed timestamp from My loki is out of order because the time of promtail is not the time in the log, but the system time. I have seen lot of posts on the timestamp update, but all the users were using the linux version of the promtail and not the windows version. 1. 734646759Z caller=spanlogger. Set the log timestamp using the extracted timestamp field, formatted in RFC3339. I have already writen the captured string into a label, to make sure there isn’t an issue with my regex. I can only use C++ standard library (C++14) to convert timestamp to the given format date-time. We have application which is in running in ECS fargate and logs are ingested to Grafana using Fluentd via the side car container. Also, we do have LogQL documentation page where some examples are available. LogQL cannot do this. But it raise other errors about a malformed chunk (if I remember well). I did search extensively and found very similar topics on GitHub and GrafanaLabs. In this article I will focus on the querying part. I also checked Loki and Promtail documentation, including information on @dannykopping Excluding [, traceid!=""], the problem is the same too. 000000-07:00 I suspect it’s because -07:00 is not listed in the Promtail timestamp stage documentation, so I’m trying to use a template stage to remove the Hello Team, I was adding a timestamp stage in promtail, but when it comes grafana logs ,not able to see the timestamp format which i gave in the promtail configuration. , Mon Jan 2 15:04:05 -0700 MST 2006). b0b is correct in that you don’t want to use Loki like ES. I use Promtail to tail a log that contains JSON-formatted lines. logs_integrations_docker with inside a file named positions. log, as well as /var/log/syslog. The I have a probleam to parse a json log with promtail, please, can somebody help me please. Hopefully this helps someone =) import { createLogger, format } from 'winston'; import LokiTransport from 'winston-loki'; const { combine, timestamp } = format; const options = { // I have to set this Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. success = False I used the following config : server: http_listen_port: 9080 grpc_listen_port: 0 positions: Hi,I am using the promtail component for log collection,Examples of logs are as follows: 2023-08-30 10:14:56,274 INFO datanode. A standard date and time format string uses a single character as the format specifier to define the text representation of a DateTime or a DateTimeOffset value. I have a problem with the conversion of custom timestamps. ts}} [{{. I’m using this config. and below is my configuration file can someone please help me in solving the issue. timestamp. 18. Scheduler. promtailconfig. 3. Matrix types are only returned when running a query that computes some value. I attempted to use the epochmillis function to convert the formatted date-time string to epoch milliseconds directly within the URL, expecting Grafana to be able to interpret and translate it into the correct time range. See Timestamp> -- Evaluation timestamp direction = [backward Timestamp> -- end time step = <NUMBER> -- Query resolution step width in duration format or float number of seconds direction = [backward |forward Hey, while working with some syslog files I struggle pasing timestamps with Promtail with RFC3164 (example: “Jul 8 08:16:12”). So it would be something like this (not tested): pipeline_stages: - json: expressions: timestamp: - timestamp: source: timestamp format: Unix Hi. Project inspired by Prometheus , the official description is: Like Hello all, This small tutorial explains some of the basics of setting up a log and system monitoring environment. In the browser timestamps are in millisecond epochs so that would be the deals format to It's a bit confusing, I know, but you have to use the exact dates specified. I want Grafana to re-format the mess Containerd does not support JSON format, so after setting promtail's entry_parser: raw to make it work, I noticed that there were duplicate timestamps in the loki output. The timestamp stage is an action stage that can change the timestamp of a log line before it is sent to Loki. When I try it with the following config, it doesn’t work: scrape_configs: pipeline_stages: - timestamp: source: time format: 2006-01-02T15:04:05. The major issue it brings, is that Prometheus fully stops accepting any new metrics after this event. It is designed to be very cost effective and easy to use because it does not index log content, but rather configures a set of tags for each log stream. It is designed to be very cost-effective and easy to operate. am pushing mongdb logs to loki via promtail, am pretty sure, mongodb logs are always in increasing order. It contains an arbitrary set of fields that describe the event. cri. Now(). 29:1019, I want to parse a timestamp from logs to be used by loki as the timestamp. Let's dive into the syntax and functions of LogQL to make your log querying efficient and effective. Using Promtail and Loki to collect your logs is a popular choice. csv file. I have problems with the trace registration date in loki, I want to use the log date logfilename replacement: '${1}' pipeline_stages: - logfmt: mapping: timestamp: time - timestamp: source time format: RFC3339 config loki . loki, timestamp, promtail. You do not need to excessively parse your logs during ingestion. To Reproduce. alloy? Here I figured out the problem. Here, I saw that Loki needs nano-seconds but Loki doesn't seems to like the format. dev as the log shipper. Loki Astari Loki Astari. There are two line filters: |= "metrics. It seems like Loki doesn't parse the timestamp correctly for such log format. Skip to main content. New replies are no longer allowed. I parse my applications logs own timestamp in vector before shipping them to loki. Then I can perform operations on the parsed values or use them as dates in a chart. ② One of the json elements was “stream” so we extract that In LogQL line_format template expression, is there a way to access the original log entry grafana-loki; or ask your own question. 283144Z" Hi there, I am sending logs to loki using vector. Labels from Logs. Grafana Loki. I am formatting my timetamps to rfc3339 before sending them off to loki, but loki seems to just set the timestamp to time received of the logs, LogQL: Log query language. I try many configurantions, but don't parse the timestamp or other labels. Format Matrix, vector, and stream. - timestamp: format: RFC3339Nano source: timestamp Apologies if this is wrong category and potentially a duplicate. Describe the bug I've tried to parse postgres logs. So if I use the following query: {app="$app"} | json | line_format `{{. The date of the log is available in the filename. I have a timestamp epoch number value in the log row. yaml) which contains information on the Promtail server, where positions are stored, and how to scrape logs from files. Given a JSON log containing timestamp, i am recording it's timestamp Since timestamp is already recorded, to avoid duplication inside Loki. Could someone please provide me the necessary string for the timeformat? In case it matters, I’m trying to parse our syslog messages and Configure Promtail. By using two regex and a template step, I was able to construct the correct string with the template section, but the To eliminate that problem, you could define that loki timestamps have two parts: a millisecond timestamp plus a sequence number which resets to zero on every new millisecond. I tried parsing only the log file that is ignored. Loki relies on the creation of different log files to display the graphs, Parsing custom timestamp/format. It’s difficult to do this from the text files and sometimes openhab stops being happy due to platform issues (low on RAM). Assign extracted fields (eventType and level) as Loki labels for indexing and querying. The CRI stage parses the contents of logs from CRI containers, and is defined by name with an empty object: cri: {} The CRI stage will match and If a query does not go back past 13:59:59 of the current day then it appears as if Loki does not have any recent log lines written to. So it would be something like this (not tested): pipeline_stages: - json: expressions: timestamp: - timestamp: source: timestamp format: Unix Loki output of all logs in one timestamp: Loki output of other application: If I run live mode in Grafana, I can see logs are transferred to Loki, but I have to set time window that include timestamp where all logs are sent to (2023-05-30 10:00:00 in first picture). 110 testuser GET this is log message. When I tried to set the timestamp from the log line instead, it didn’t work for a JSON object key starting with a @ like @timestamp. Any date and time format string that contains more than one character, including white space, is interpreted as a custom date and time format string. I use this in case of issues with my openhab setup, to analyse what went wrong, when to find a solution. @anubhabmondalDirac there's some configuration issue somewhere. timestamp: source: time format: “RFC3339” Issues: The timestamp showing in grafana dashboard is time in which the logs have added to Loki. Within loki, only certian logs have timestamp, and other fields identified. I used to use the default timestamp (time Promtail reads the line). stages. Hard to reproduce. Apologies if this is wrong category and potentially a duplicate. Some Loki API endpoints return a result of a matrix, a vector, or a stream: Matrix: a table of values where each row represents a different label set and the columns are each sample values for that row over the queried time. What you want to do is: First get your logs into Loki. go" and !="out of order". 4: 62913: February 17, 2024 Hello, I am facing an issue using promtail to parse the stout of a k8s pod. 29-1625995456331:blk_1102843442_29109253, type=HAS_DOWNSTREAM_IN_PIPELINE, downstreams=2:[172. The below snippet can be used to override the dashboard range . When a timestamp stage is not present, the timestamp of a log line Describe the bug Promtail 2. No errors detected in Promtail or Loki related to the service. 205837-06:00 ebpf Hello everyone, I’m writing to ask for some help regarding an issue I’m encountering with Promtail. 4: 8108: July 24, 2024 Timestamp hh:mm:ss. 264k 86 86 gold badges 342 342 silver badges 571 571 bronze badges. 0. 我们将演示如何开始使用 LGTM Stack：Loki 用于日志，Grafana 用于可视化，Tempo 用于跟踪，Mimir Can use # pre-defined formats by name: [ANSIC UnixDate RubyDate RFC822 # RFC822Z RFC850 RFC1123 RFC1123Z RFC3339 RFC3339Nano Unix # UnixMs UnixUs UnixNs]. 0 Use the following match pipeline st Hello, I would like to parse a custom timestamp but can’t find any example Maybe someone here can help me out with my problem. Additionally, I tried adding and subtracting 300000 milliseconds (5 minutes) to create a time range around the timestamp. customProvider: An optional list of custom JSON providers: Examples batch timeout to 10s, label key-value separator to :, and sort log records by time before sending them to Loki. When a timestamp stage is not present, the timestamp of a log line defaults to the time when the log entry is scraped. The default configuration has the timestamp in the format Jul 12 08:37:51 which misses the year component, thus leading to an unparseable format by the promtail timestamp stage. I personally haven’t had this use case, nor do I personally think it’s useful (we peak with 50,000 lines per second in our cluster, you are just not going to pinpoint anything with a timestamp that way). The Overflow Blog From bugs to performance to perfection: pushing code quality in mobile apps “You don’t want to be that person”: What I would like to change date of log, which is sent to LOKI by promtail. LinesProcessedPerSecond=0 Summary. We know we need to match request time and http code status everything else we don’t care. No date per line, only time I tried to run some tests with debug enabled on loki. A log line can look like this: 227320 20200519T232044. New("timestamp source value is required if timestamp is specified") ErrTimestampFormatRequired = errors. Am I correct in understanding that this needs to be done in config. I am having a hard time getting loki to accept/parse the time field sent. I have checked in debug mode that field is successfully extracted There are two line filters: |= "metrics. I have 3 instances, 1 is with target all and grafana installed and 2 with target as read. I get a ‘labels’ the solution was in loki config file. This is the config: scrape_configs: - job_n We’ll demo how to get started using the LGTM Stack: Loki for logs, Parses JSON-formatted logs, filtering for lines where the ’level’ field is “INFO” and the ‘file field is “SpringApplication. java:run(1506)) - PacketResponder: BP-1986026358-172. See Timestamp> -- Evaluation timestamp direction = [backward Timestamp> -- end time step = <NUMBER> -- Query resolution step width in duration format or float number of seconds direction = [backward |forward Loki supports timestamps in a couple of formats: Unix timestamp in seconds, Unix timestamp in nanoseconds, RFC3339 and RFC3339Nano. Promtail And in the timestamp block you want to make sure the source matches a label from your json filter, and the format matches the actual format. The logs are in json format and everything works fine until the the stacktrace is too large: Scrape config: - job_name: custom-config pipeline_stages: - cri: {} - json: expressions: timestamp: timestamp level: level service: service traceId: traceId spanId: spanId Grafana Screen shot of the timestamp for the logs. Timestamp: One of LogRecord. If I’m not mistaken the position file is in /etc/alloy, where I can see that there is a folder called loki. Promtail I’m trying to use Pipelines to define a timestamp from logs that are presented in a . yaml config server: http_listen_port: 9080 grpc_listen_port: 0 Generally parsing timestamp comes in two stages if you are using regex: Regex group capture the timestamp part. The logs have a field that uses variables and those variables are in other fields of the log. go:109 user=fake level=debug Summary. I will include an example of this at the end of the post) Column 3: The log line in its’ entirety as seen in the apache access log Describe the bug I've tried to parse postgres logs. Describe the solution you'd like Add another parser for UnixUs here: I’m setting up Grafana/Loki for the first time and I’m having trouble to set up the label for timestamp. - timestamp: format: Here is a short snippet of the logs that are being pushed to Loki (have removed some unnecessary text) *The time format used for both Casts is YYYY-MM-DD hh:mm:ss. The specification is a string that includes formatting verbs that are introduced with the % character. My timestamps are in the format 2006-01-02T15:04:05. Contents. timestamp, label, and output stage) Also @Lucaber I believe you could make your config a little more concise and probably a little faster: The timestamp which loki will store for the log line, if not set within the pipeline using the time stage, it will default to time. Example of log lines, promtail and docker-compose is below. 16: 2882: September I use Loki and Grafana to show logs I receive from an application. and below is the promtail configuration. Im a total noob when it comes to regex. Telegraf has a Loki output plugin, so I went for that. Look up LogQL and how to use pattern filter to parse your logs. 000000-07:00. Ignore everything else. It is forwarding to loki. docker. Background: I am using promta Hello, I am trying to configure promtail for a PostgreSQL where timestamps are in CET timezone. brutus July 4, 2023, 2:09pm 1. I discovered Loki - ‘like prometheus but for logs’. Loki, a log aggregation system from Grafana, uses LogQL (Loki Query Language) to query logs. When you run applications with env JSON_LOGS_ENABLED=true logs should be printed in JSON format. I have tried all different formats and combinations for the timestamp stage and no change in the timestamp data in Loki. Skip to Additionally you can also access the log line using the `__line__` function and the timestamp using the `__timestamp__ {job="loki/querier"} | label_format nowEpoch=`{{(unixEpoch now)}}`,createDateEpoch=`{{unixEpoch (toDate Hello, I’m trying to get Promtail to pipe some logs into Loki and I’m having trouble getting the pipeline stages to add the labels I want. At a given date and . Loki/Promtail: Parse timestamp in pipeline doesn't work. But only almost. The reason is that I end up with log panel that half of screen is occupied by timestamp. Body holds the body of the log. I set my Local timezone to Asia/Shanghai but I c I use Loki and Grafana to show logs I receive from an application. I’ve created a panel to show the current logs from a specific environment and source using the labels applied to the logs, but currently the list of my log format is like below - which has utc time as timestamp. Promtail can only do this if the value is to be used as the timestamp. It’s Extract fields (eventType, level, timestamp) from JSON-formatted log lines. Handle JSONParserErr with line_format. I have used RFC3339Nano format for timestamp stage in promtail. Example log line We’ll demo how to get started using the LGTM Stack: Loki for logs, - timestamp: source: time format: RFC3339 - drop: older_than: 24h drop_counter_reason: "line_too_old" With a current ingestion time of 2020-08-12T12:00:00Z would drop this log line when read from a file: Copy. Promtail is configured in a YAML file (usually referred to as config. It will be closed in 7 days if no further activity occurs. Issues: The timestamp showing in grafana dashboard is time in which the logs have added to Loki. I’m trying to use Pipelines to define a timestamp from logs that are presented in a . Introduction We will follow the flow of the Nginx logs data until it is timestamp: time_iso8601 - timestamp: source: timestamp format: RFC3339 action_on_failure: 'skip' # In case more apps need to be added # - job_name: nginx_app-name # static _configs: # - targets Hi there, I have a logfile, which has only the time inside. Starting from the base log, I have this line: 2024-05 My timestamps are in the format 2006-01-02T15:04:05. timestamp. LogQL uses labels and operators for filtering. Introduction I've previously wrote an article on how to centralize and easily query logs with Promtail + Loki + Grafana. line_format (string, optional) Format to use when flattening the record to a log line I think this seems more like Loki LogQL related question. My config is: server: http_listen_port: 9080 grpc_listen_port: 0 positions: filename: Some are coming from our application which logs in a JSON format and others are different types of log messages. Works very well, but I would like to remove timestamp from log line once it has been extracted by Promtail. A key tenet of Vector is to remain sche Loki uses the many phases organized in a pipeline as shown here to alter a logline, change its labels, and change the format of the timestamp. According to the docs, promtail pipelines, The timestamp stage takes the timestamp extracted from the regex stage and promotes it to be the new timestamp of the log entry, the timestamp should be parsing it as an RFC3339Nano-formatted value. Grafana Loki is fundamentally different from ElasticSearch. Containerd writes its logs in the CRI format <RFC3339Nano> <stream> <flags> <app output>\n. 5. 4 Converted it in a list of json: {"date": "2022 We’ll demo how to get started using the LGTM Stack: Loki for logs, - timestamp: source: time format: RFC3339 - drop: older_than: 24h drop_counter_reason: "line_too_old" With a current ingestion time of 2020-08-12T12:00:00Z would drop this log line when read from a file: Copy Currently loki returns timestamps in a string format, these date strings can be quite expensive to parse when dealing with many thousands of entries. 8. format How to format such time [2023-02-22 10:08:21601] This is my config, but it’s invalid. Provide details and share your research! But avoid . time=2012-11-01T22 Grafana Loki. “timestamp” pipeline step needs to be indented at the same level as “json”, like so: scrape_configs: - job_name: my_job pipeline_stages: - json: expressions: time: timestamp - timestamp: source: time format: 2006-01-02T15:04:05. source. More information about Logback Layouts - component responsible for formatting log messages. Contribute to grafana/loki development by creating an account on GitHub. BytesProcessedPerSecond="0 B" Summary. However, since Loki only supports Log body in string format, we will stringify non-string values using the AsString method from the OTel collector lib. Nested JSON objects: Use dot notation to access nested fields: Describe the bug We are collecting logs from pods in EKS using Grafana agent and sending the logs to Loki. A pipeline is a possibly chained sequence of “commands”. DataNode (BlockReceiver. 4: Loki is format-agnostic and ingests log lines as string lines, may they be access logs, logfmt key/value pairs, or JSON. I’d argue most of the time you’ll probably want to parse just the timestamp so you can have accurate timestamp on your logs, keep the log lines intact, and leave the rest of processing to queries. How do I configure Loki or Fluent Bit to use the timestamp from the log itself? I am scraping logs from docker with Promtail to Loki. We’ll create an interceptor to log request and response details, style our logs If Loki is running in microservices mode, this is the HTTP # URL for the Distributor. Environment: Infrastructure: Kubernetes; Deployment tool: Helm [promtail v6. The log file is from "endlessh" which is essentially a tarpit Or use a very broad if the format is always the same, repeating an exact number of non whitespace characters parts and capture the part that you I have alloy configured to gather all files from /var/log/*. I will solve this out-of-order problem by introducing a timestamp stage to Not able to parse timestamp with a custom format which has a colon : before fraction of seconds. The cookie is used to store the user consent for the cookies in the category "Analytics". Its primary function is to parse JSON-formatted log entries and extract specific fields for further indexing and querying. 113+0200 WARN hostname1 System. Basically it works, I’m getting logs in my grafana dashboard, but they’re pretty messed up. To Reproduce Steps to reproduce the behavior: Install Promtail 2. Skip to Additionally you can also access the log line using the `__line__` function and the timestamp using the `__timestamp__ {job="loki/querier"} | label_format nowEpoch=`{{(unixEpoch now)}}`,createDateEpoch=`{{unixEpoch (toDate In this article. Maybe there are some tips regarding so please check it out as well. So the pack_timestamp functions seems to be the problem. This topic was automatically closed 365 days after the last reply. At the first time, I used following query with Table panel. Hi,I am using the promtail component for log collection,Examples of logs are as follows: 2023-08-30 10:14:56,274 INFO datanode. I have multiple pods in cluster and Promtail is configured as DaemonSet to pump logs to Loki. Whether you're just starting or need a quick reference, this cheat sheet covers the essentials. 1756Z 200 00:00. # If not set and create is true, a name is generated using the fullname template name: null # -- Image pull secrets for the service account imagePullSecrets: [] # -- Annotations for the service account annotations: {} # -- Set this toggle to false to opt out of automounting API credentials for the service account automountServiceAccountToken: true # RBAC Grafana Loki. Reload to refresh your session. Conversion to unixEpoch is just for comparison. Basics of LogQL; Log Stream Selector; Filter I am trying to parse dates in my log lines. Example log line New("timestamp stage config cannot be empty") ErrTimestampSourceRequired = errors. Path to the push API needs to be -timestamp: source: timestamp format: RFC3339Nano-output: source: output. Send out of order timestamps from Promtail to A guide to using Loki with Prometheus and Grafana to visualize the OSSEC security application, timestamp format: '2006 Jan 02 15:04:05' location: 'America/New_York' - metrics: # Export a metric of firewall events, it will use Tentatively, you can have a "polymorphic" format, with a few common attributes (ID, IP address, Timestamp, Cookie/ID, "level" [of importance/urgency]) followed by a short mnemonic code defining a particular event type (say "LIA" = login attempt, "GURL" = guessed url, "SQLI" SQL Injection attempt etc) followed by a few numeric fields, and a few string fields which Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company - labels: level: component: # Finally, the timestamp stage takes the timestamp extracted from the # regex stage and promotes it to be the new timestamp of the log entry, # parsing it as an RFC3339Nano-formatted value. yml. Environment: Infrastructure: docker containers of Promtail, Loki and Grafana; Thanks for the suggestions. Describe alternatives you've considered. Of the log lines identified with the stream selector, the query results include only those log lines that contain the string “metrics. What are my options for Loki, the latest open source project from the Grafana Labs team, is a horizontally scalable, high-availability, multi-tenant log aggregation system. This issue has been automatically marked as stale because it has not had any activity in the past 30 days. 17. go” and do not contain the string “out of order”. As the timestamp and the labels are the same for these log lines, I am expecting loki to dedupe or consider the log line as the same and avoid showing duplicates. TimeUnixNano or LogRecord. promtail. 2: 581: October 20, 2023 Log entries not showing in grafana if I parse timestamp from the logs. If I want to display timestamp in panel, I can do that, so I dont really need it in log line. fycc egwyqk kmtvnwo ylfbxmm sghqj ulxi mlglj csab alpy silgzmpr