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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.

0
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1answer
33 views

Dynamically grep with less/tail

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 ...
0
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0answers
193 views

How to debug a docker on web app for containers in Azure which does not start

I am able to run my containers locally. I published them to container registry. And the deployment from container registry to web apps for containers is successful. But the service does not turn ...
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0answers
28 views

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 ...
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0answers
27 views

How can I easily convert logstash filters with grok to ingest pipelines?

Logstash has ingest-convert.sh to convert ingest pipelines to Logstash, but I'd like to convert the other way around. I have the 23-Tomcat-filters and grok_patterns file. Is there any smart way ...
1
vote
1answer
222 views

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 ...
0
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2answers
60 views

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 ...
3
votes
3answers
60 views

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 ...
9
votes
1answer
120 views

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 ...
6
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6answers
19k views

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 ...
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3answers
3k views

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 ...
7
votes
2answers
198 views

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 ...
14
votes
2answers
3k views

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 ...
14
votes
2answers
246 views

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 ...