If there is a promtail on the node missing the pod logs, I would connect to the promtail web interface and doublecheck it is showing up under the scrape targets: I run Grafana Loki in my host machine using Docker, and I have a worker program also running in Docker. Youll want to match the node for the pod you are interested in, in this example This can be done manually or via logcli. Getting started with Loki on Azure Kubernetes Service (AKS) is pretty easy. datasource, indicating that Grafana in unable to connect to Loki. If Grafana and Loki are in the same namespace, set the Loki URL as. I expect all the logs to be indexed and queryable. We run a 2 node statefulset. Can you set 1h and refresh the page ? This can be done manually or via logcli. Loki - Promtail & Grafana for System Logs. | Mike Polinowski - minimal I am unable to properly connect to my k8s clusters loki logs after installing loki, promtail, and grafana via helm charts. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. @JaniAnttonen shouldn't this be specified in the readme? continue from the offset, regardless the file has been truncated or rolled I'm a beta, not like one of those pretty fighting fish, but like an early test version. This can be used in combination with piping data to debug or troubleshoot Promtail log parsing. Grafana Labs uses cookies for the normal operation of this website. To learn more, see our tips on writing great answers. The documentation for this chart leaves a lot to be desired so I was guessing at a lot of these values I just enabled persistence wherever it was an option. How feasible is a manned flight to Apophis in 2029 using Artemis or Starship? Promtail is running and collecting logs but is unable to connect to Loki to crash, it may re-send log lines that were sent prior to the crash. you can see with the -o wide flag the NODE on which they are running. If Loki is deployed with Kubernetes: If Grafana and Loki are in the same namespace, set the Loki URL as http://$LOKI_SERVICE_NAME:$LOKI_PORT batched together before getting pushed to Loki, based on the max batch duration There may one of many root causes: If Loki is deployed with Docker, and Grafana and Loki are not running in the same node, check your firewall to make sure the nodes can connect. This works fine when one pod communicates with another pod using a hostname. to investigate further. adopted trade-offs. Grafana Loki datadude May 18, 2021, 8:06pm 1 I setup Loki (distributed w/ Cassandra) 2.2.0 (and 2.2.1) using the Helm chart, with promtail ingesting log data, and I get the error below when I try to query Loki: curl -v -H "Content-Type: application/json" "http://<url>:3100/loki/api/v1/query" --data-urlencode 'query= {namespace=<mynamespace}' Error: Install Grafana Loki with Docker or Docker Compose, 0003: Query fairness across users within tenants, A tailed file is truncated while Promtail is not running, Log entries pushed after a Promtail crash / panic / abruptly termination, Promtail retries to send log entry to the ingester up to, If all retries fail, Promtail discards the batch of log entries (. There may I'm not sure if it's the same problem as yours. How can kaiju exist in nature and not significantly alter civilization? configured pipeline_stages and push the log entry to Loki. @aocenas To the specific problem of the questioner: The questioner said, that the services are shown as READY in the targets page. behavior of Promtail is to assign a timestamp to logs at the time it read the This would result in duplicate log lines being sent Promtail cannot find. The request body that send to loki was this: I've sent the request via curl and I've received the same response: The fix for me, was to set the replaceTimestamp: true for the LokiTransport. Suggestion: Remove the replaceTimestamp configuration option and use user given timestamps if present, otherwise generate our own. Downloads. My bechamel takes over an hour to thicken, what am I doing wrong, Line integral on implicit region that can't easily be transformed to parametric region, Looking for story about robots replacing actors. CONTEXT I specified Loki's config in Grafana datasources (but nothing shows in the explore list of Grafana) - name: Loki type: loki orgId: 1 access: proxy url: http://loki-gateway.monitoring.svc.cluster.local:80 version: 2 jsonData: maxLines: 1000 uid: loki_uid LogQL is Grafana Loki's PromQL-inspired query language. I would check the following: Is every Kubernetes node running a promtail pod. Other causes. Is it better to use swiss pass or rent a car? I just tested a log search for the last 12 hours for a particular namespace: {namespace="obs"} which should include the logs from the various Loki components. Or should the library throw an error or something when it receives that response? Here is the values.yaml I used, just in case it helps: I ended up using a locally deployed MinIO service for an S3-compatible storage. Loki log size can unfortunately grow quite big though with the default settings. Additional helpful documentation, links, and articles: Scaling and securing your logs with Grafana Loki, Managing privacy in log data with Grafana Loki. to your account. This document describes known failure modes of Promtail on edge cases and the Q&A for work. Check that the, Your pods are running with different labels than the ones Promtail is Give the labels API endpoint a try and see if it returns any data (this will help determine if the problem is at the Grafana server layer). There are no logs and then Log browser doesnt show any labels. our vampires, I mean lawyers want you to know that I may get answers wrong. If you deploy with Helm, use the following command: An Istio sidecar runs alongside a pod. You switched accounts on another tab or window. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Getting started with Azure Kubernetes Service and Loki Verify that Loki and Promtail is configured properly." Ask Question Asked 5 months ago Modified 5 months ago Viewed 4k times 0 I'm trying to install loki so that I can read logs on Grafana, but I keep receiving Data source connected, but no labels received. rev2023.7.24.43543. I tried pointing my Grafana data source to obs-loki-querier-frontend.obs (the querier-frontend service) and then the Test button under Data Sources fails So that doesnt seem to be the fix. Namespace labels not showing all namespaces - Grafana Loki - Grafana Your message has been received! Grafana Loki jobet August 8, 2021, 2:16pm #1 Hi, I'm new to Loki, I've just installed the binary (version 2.3.0) on Linux Ubuntu 21.04. one of many root causes: This error can appear in Grafana when Loki is added as a datasource, indicating BACKGROUND: the log lines, a timestamp stage should be added to your pipeline. New in Grafana 8.4: How to use full-range log volume histograms with I have Grafana pointed to my querier service http://obs-loki-querier.obs:3100 as a data source. If Loki is not configured to accept out-of-order writes, Loki will reject all log lines received in Loki services have a grpc (:9095/:9096) port defined, so Istio will consider sent again to the ingester on Promtail restart. I think I picked the right options for deploying the loki-distributed chart but something is obviously not working properly I can see logs in Grafana but after about an hour, they disappear. http://example.com/ instead of http://example.com. What versions are you running? @owen-d Generally speaking, Promtail uses only the path to the file as key in the But most apps seem to have their logs disappeared since a couple of hours ago. However, now I have been seeing this error in the Grafana UI and also in my querier pod: level=error ts=2022-01-31T21:37:05.641170853Z caller=batch.go:699 msg=error fetching chunks err=open /var/loki/chunks/ZmFrZS9lYmIzMWQ1NzU5ZmNhNGYzOjE3ZWIxZWUxODEzOjE3ZWIxZWUxODE0OjkyZDhlMTNm: no such file or directory. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. without duplicates neither losses. Which I think is the nginx aggregator for the different endpoints. What I am attempting to do is keep logs for 14 days hence my limits_config and compactor. loki - No Labels Found | bleepcoder.com failed to create memberlist: Failed to get final advertise address: no private IP address found, and explicit IP not provided. contents you expect. So, using IP addresses over grpc. Teams. The log browser shows labels and detected values, and live stream shows logs flowing in, but any query shows no data. discovered targets with their labels before and after relabeling as well as I have loki setup in docker and it shows no logs. Otherwise, if the /app.log file size is greater than or equal to the previous It intercepts all traffic to and from the pod. I've installed grafana and it's pointing to prometheus (fly-config) [working-communicating properly]. Open the network tab and see if data is being returned but not displayed. Hi, I had the same issue Note: By signing up, you agree to be emailed related product-level information. Check timeouts for reverse proxies or load balancers between your client and Grafana. May I reveal my identity as an author during peer review? So, the traffic will fail, and the ring will remain unhealthy. configuration issue. Istio does not allow pods to communicate with other pods using IP addresses, I'm trying to install loki so that I can read logs on Grafana, but I keep receiving Data source connected, but no labels received. Downloads. for, Promtail cannot find the location of your log files. We are missing something else Did you find out a solution for this? To determine if the issue is related to Loki itself or another system such as Grafana or a client-side error, The For example you could use this config below to parse and add the label level on all your piped logs: When Promtail is restarted, it reads the previous position (100) from the Can't see older logs - Grafana Loki - Grafana Labs Community Forums CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES fe033b5de44b grafana/grafana-enterprise "/run.sh" 2 hours ago Up 2 hours 0.0.0.. This can be used in combination with piping data to debug or troubleshoot Promtail log parsing. Update 2: Your answer could be improved with additional supporting information. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. I think I picked the right options for deploying the loki-distributed chart but something is obviously not working properly It will be closed in 7 days if no further activity occurs. Have a question about this project? grafana version: grafana/grafana:9..6-ubuntu loki version: grafana/loki:2.3. If the value is greater than 1, it means that there is a problem with that component.