Questions tagged [logging]
Systematic recording of events from services and application is a key process within DevOps adoption. Use this tag to describe logging and telemetry questions.
40 questions
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Limiting Access to logs on a specific cluster to Grafana Admins
I have 3 cluster (A-B-C), I installed loki on cluster A using the grafana/loki helm chart, and on cluster B and C I have promtail installed pushing logs to cluster A, how can I make logs collected ...
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63
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k9s only shows around 50-100 lines of logs, despite more logs being available
I've started using k9s, a TUI for exploring a kubernetes cluster.
When I use it to view logs, it however only shows me around 50-100 lines, instead of all the logs, or at least a decent chunk of them. ...
- 121
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How can I make AWS Elastic Beanstalk logs readable?
I just deployed to AWS - Elastic Beanstalk and found the logs undreadable. These are the logs directly downloaded from Elastic Beanstalk Environment GUI.
Particularly, there is an ELB-Healthchecker ...
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54
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Docker log retrieval issue with local log driver
EDIT: this appears to be a problem with a long string of zeros getting dumped into the local logs; docker can't cope with this. Since sometimes the machine running our app loses power, when it comes ...
- 11
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54
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Collecting logs from Kubernetes container file system (not from stdout or stderr)
I am trying to find a way to get Promtail collect logs from a container file system. These logs were not generated using the standard output, which automatically gets discovered by Promtail. They have ...
- 11
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489
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Promtail vs. Grafana Agent
I'm running a couple of containers in a Docker Swarm and am setting up a logging system using Grafana Loki and Grafana (up to ~50GB/log per day max). For log shipping, I'm partly scraping container ...
- 19
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79
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AWS don't gather properly logs in non-blocking mode
I have faced a situation when some of the logs don't gather by awslogs driver.
Awslogs driver with mode = non-blocking and maximum buffer size = 25mb (I have experimented with these values by looking ...
- 101
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118
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How can I log every command for which an Ansible playbook uses elevated permissions?
I have an Ansible playbook that runs against a Linux target host and uses become to gain elevated permissions for those actions that require it.
For auditing purposes, I need a list of all the Unix ...
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972
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Keeping Docker logs only in memory
There are various log drivers available for Docker but it looks like all of them persist the logs to disk.
To reduce disk usage I would like to keep the logs only in memory (and limited to a certain ...
- 150
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315
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Does GitLab support searching logs across jobs for specific strings?
I need to find all jobs that failed in a specific fashion, a few methods are viable
One method that would be viable is finding where GitLab stores its log files, and searching them with something ...
- 2,591
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Azure Function App logs without Application Insights instance?
I'm a bit confused about my options for Function App logging on Azure. Is Application Insights the only mechanism available to observe the output logged through the function application's context? In ...
- 131
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979
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".format(name, e)) ... google.protobuf.json_format.ParseError: Failed to parse textPayload field: expected string or bytes-like object." GCF logging
I changed the logging in a Google Cloud Function from the built-in Python module logging to google.cloud.logging and I cannot seem to export exceptions and error messages since they have the wrong ...
- 143
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What is the difference between Fluent Bit and Prometheus?
From what I've seen, Prometheus scrapes data and metrics and displays them and Fluent Bit collects logs and metrics and can output them.
So, are they doing the same thing, i.e. should I choose one ...
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242
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How can I get logs in real time from a docker container hosted on Digital Ocean
I have a docker container in which I am running Flask and Scrapy.
I noticed that when I run and build my container on my local machine I get logs in real time. However, on an Ubuntu instance hosted on ...
- 121
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917
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How do I find out exactly when a Github personal access token was last used?
A few days ago, I got an email from github saying that a personal access token that we used is in an 'outdated format':
We noticed that an application, TeamCity(ci.support.example.com), owned by an ...
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782
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How to deploy loki-stack helm chart with CRIO?
I am trying to configure loki-stack using a helm chart to my k8s cluster.
Since my k8s cluster uses CRIO and not docker (which is common nowdays) I need to change the pipeline_stages: config map to ...
- 151
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How to increase jenkins logger size?
I use Jenkins log recorders as described in docs:
https://www.jenkins.io/doc/book/system-administration/viewing-logs/
It works, but log is only about 255 lines long, which is too short for my ...
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1k
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Logging & Monitoring on multiple servers
I lead a small project with 2 groups of servers (servers in a single group are clones with the same microservices, like pods in the k8s), a balance loader, and a DB. Docker & k8s aren't used ...
- 181
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174
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Unable to send cloudwatch logs to loggly using a blueprint lambda - Invalid ciphertext
I am trying to use the loggly Lambda blueprint to send cloudwatch logs to loggly. I am doing this because I have a bunch of lambdas that I need to have a single point of viewing logs. I've followed ...
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53
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Monitoring K8s Pods in case of outage
K8s has self-healing builtin features, if a pod crash then it will be replaced with the new pod but its log is gone. So what is the best way to monitor K8s pods in case of outage?
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Looking for a good book explaining how things work in the industrial system test environment and production environment
Any advice on a good book explaining how things work in the industrial system test environment and production environment?
It's my first time in this topic, so I would need a general overview.
Key ...
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What software ihandles shipping to ElasticSearch the standard output of a .NET Core web application running in a container?
I have a ballpark idea of how the ELK stack works. I read that by default, standard output is captured and that output will make its way to the Elasticsearch repository. If I post something to stdout, ...
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How to parse command output (docker log) through goaccess?
How to parse docker logs output / tail output through goaccess? When I do:
docker container logs mycontainer > logs
and then goaccess -f logs it works perfectly, but if I do docker logs --tail ...
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454
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Problem with logging in docker when using fluentd for logging of three flask apps running in a docker network behind an nginx
I am facing a strange problem with logging when I set up a network of three docker containers each running a small flask app.
My python application looks as follows:
from flask import Flask, request
...
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339
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How to write output per builder into separate log files in Packer? [closed]
I have a few packer templates which have several builders - up to 5 per template. This makes it very easy to provision all the resources necessary in a pipeline -- however by default packer writes all ...
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65
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What considerations should be taken into account for a good log file format?
We have a practical question I struggle to answer :
What is a good logfile schema?
Here are the caveats:
There are several workloads, each writing more than one log file
Applications are on more ...
- 3,743
0
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1
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31
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View logrotated log continuously
Is there a command to view logrotated logs as a continuous stream with proper ordering?
I need to view all entries in syslog in historical order starting from the oldest entry available. So far I was ...
- 143
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176
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azure activity log, how to find releases
My security department has asked to ingest logs from Azure with the goal being to identity releases. The security team wants to be able to say:
Hey, there was a release on mm/dd/yyyy at noon (...
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8k
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How to redirect tomcat logs TO console?
So I have a problem that is the reverse of what everyone else on the internet wants.. I want to take tomcat logs that are being written out to /usr/local/tomcat/logs and have them be output to console ...
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157
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Dynamically grep with less/tail [closed]
when tailing a log file, we might use:
tail -f foo.log | grep bar
if we want to change the grep argument, we have to ctrl-c and then change the argument and then restart the command.
my question is ...
- 395
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116
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What are the best logging/metrics reporting tools for use with OpenShift?
OpenShift includes EFK and I'm looking into using that or ELK, but there are so many options (found a link with 50+ options) that I'm trying to narrow down. Ideally something free/cheap. What is the ...
- 163
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606
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Should I use filebeat or an app-logging module with lumberjack capabilities to collect my logs
I have a pretty basic elk setup which aggregates logs from around 15 VMs that are running various services.
All of them have configured filebeat syslog forwarder with a single input in logstash.
I ...
- 133
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3
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181
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Automatic periodic conditional checks
I need a simple tool that will carry out some conditional checks periodically and give me a red/green status that I can use as an indication that something is wrong.
These are examples of checks that ...
- 171
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3
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121
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Ideal methods of handling server logs on AWS
We currently have some ruby applications hosted on EC2 servers on AWS, and every few weeks we see the disk space get completely consumed by the app log as well as the worker logs.
What are the best ...
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What exactly is the cloud term 'a Firehose'?
I found a Firehose definition from Overview of the Loggregator System Cloud Foundry docs.
The Firehose is a WebSocket endpoint that streams all the event data
coming from a Cloud Foundry ...
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7
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68k
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How Do I Log Task Output To A File?
One of my ansible tasks imports an Oracle database using impdp.
This generates a lot of output to the console so I have set no_log: True.
However, when this fails I want to see the log!
How can I ...
- 489
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2
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13k
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How to get memory usage per process with sar, sysstat?
Can I get memory usage per process with Linux? we monitor our servers with sysstat/sar. But besides seeing that memory went off the roof at some point, we can't pinpoint which process was getting ...
- 161
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2
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754
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What strategies can be employed to secure sensitive data in log files?
Working in highly regulated environments data is classified in different ways depending on the sensitivity. In some cases, this is legally enforced and must be treated differently.
Examples of a data ...
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16k
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How to have multiple log streams in docker
We have an application that writes three types of logs into three separate files: access logs, generic application logs and system logs. The format (and purpose) of these logs are very different. And ...
- 1,577
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2
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402
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What is a good logging practice for distributed tasks?
I have the following setting:
Create multiple workers, do a computation and terminate them after the
computation is done.
So, every-time it’ll be a different instance running the task, so each ...
- 2,816