138 lines
6.9 KiB
Markdown
138 lines
6.9 KiB
Markdown
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## Log system
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GitLab has an advanced log system where everything is logged so that you
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can analyze your instance using various system log files. In addition to
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system log files, GitLab Enterprise Edition comes with Audit Events.
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Find more about them [in Audit Events
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documentation](http://docs.gitlab.com/ee/administration/audit_events.html)
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System log files are typically plain text in a standard log file format.
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This guide talks about how to read and use these system log files.
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### production.log
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This file lives in `/var/log/gitlab/gitlab-rails/production.log` for
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omnibus package or in `/home/git/gitlab/log/production.log` for
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installations from source.
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It contains information about all performed requests. You can see the
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URL and type of request, IP address and what exactly parts of code were
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involved to service this particular request. Also you can see all SQL
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request that have been performed and how much time it took. This task is
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more useful for GitLab contributors and developers. Use part of this log
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file when you are going to report bug. For example:
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```
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Started GET "/gitlabhq/yaml_db/tree/master" for 168.111.56.1 at 2015-02-12 19:34:53 +0200
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Processing by Projects::TreeController#show as HTML
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Parameters: {"project_id"=>"gitlabhq/yaml_db", "id"=>"master"}
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... [CUT OUT]
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Namespaces"."created_at" DESC, "namespaces"."id" DESC LIMIT 1 [["id", 26]]
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CACHE (0.0ms) SELECT "members".* FROM "members" WHERE "members"."source_type" = 'Project' AND "members"."type" IN ('ProjectMember') AND "members"."source_id" = $1 AND "members"."source_type" = $2 AND "members"."user_id" = 1 ORDER BY "members"."created_at" DESC, "members"."id" DESC LIMIT 1 [["source_id", 18], ["source_type", "Project"]]
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CACHE (0.0ms) SELECT "members".* FROM "members" WHERE "members"."source_type" = 'Project' AND "members".
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(1.4ms) SELECT COUNT(*) FROM "merge_requests" WHERE "merge_requests"."target_project_id" = $1 AND ("merge_requests"."state" IN ('opened','reopened')) [["target_project_id", 18]]
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Rendered layouts/nav/_project.html.haml (28.0ms)
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Rendered layouts/_collapse_button.html.haml (0.2ms)
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Rendered layouts/_flash.html.haml (0.1ms)
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Rendered layouts/_page.html.haml (32.9ms)
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Completed 200 OK in 166ms (Views: 117.4ms | ActiveRecord: 27.2ms)
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```
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In this example we can see that server processed an HTTP request with URL
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`/gitlabhq/yaml_db/tree/master` from IP 168.111.56.1 at 2015-02-12
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19:34:53 +0200. Also we can see that request was processed by
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`Projects::TreeController`.
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### application.log
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This file lives in `/var/log/gitlab/gitlab-rails/application.log` for
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omnibus package or in `/home/git/gitlab/log/application.log` for
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installations from source.
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It helps you discover events happening in your instance such as user creation,
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project removing and so on. For example:
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```
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October 06, 2014 11:56: User "Administrator" (admin@example.com) was created
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October 06, 2014 11:56: Documentcloud created a new project "Documentcloud / Underscore"
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October 06, 2014 11:56: Gitlab Org created a new project "Gitlab Org / Gitlab Ce"
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October 07, 2014 11:25: User "Claudie Hodkiewicz" (nasir_stehr@olson.co.uk) was removed
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October 07, 2014 11:25: Project "project133" was removed
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```
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### githost.log
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This file lives in `/var/log/gitlab/gitlab-rails/githost.log` for
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omnibus package or in `/home/git/gitlab/log/githost.log` for
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installations from source.
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GitLab has to interact with Git repositories but in some rare cases
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something can go wrong and in this case you will know what exactly
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happened. This log file contains all failed requests from GitLab to Git
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repositories. In the majority of cases this file will be useful for developers
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only. For example:
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```
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December 03, 2014 13:20 -> ERROR -> Command failed [1]: /usr/bin/git --git-dir=/Users/vsizov/gitlab-development-kit/gitlab/tmp/tests/gitlab-satellites/group184/gitlabhq/.git --work-tree=/Users/vsizov/gitlab-development-kit/gitlab/tmp/tests/gitlab-satellites/group184/gitlabhq merge --no-ff -mMerge branch 'feature_conflict' into 'feature' source/feature_conflict
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error: failed to push some refs to '/Users/vsizov/gitlab-development-kit/repositories/gitlabhq/gitlab_git.git'
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```
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### sidekiq.log
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This file lives in `/var/log/gitlab/gitlab-rails/sidekiq.log` for
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omnibus package or in `/home/git/gitlab/log/sidekiq.log` for
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installations from source.
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GitLab uses background jobs for processing tasks which can take a long
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time. All information about processing these jobs are written down to
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this file. For example:
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```
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2014-06-10T07:55:20Z 2037 TID-tm504 ERROR: /opt/bitnami/apps/discourse/htdocs/vendor/bundle/ruby/1.9.1/gems/redis-3.0.7/lib/redis/client.rb:228:in `read'
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2014-06-10T18:18:26Z 14299 TID-55uqo INFO: Booting Sidekiq 3.0.0 with redis options {:url=>"redis://localhost:6379/0", :namespace=>"sidekiq"}
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```
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### gitlab-shell.log
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This file lives in `/var/log/gitlab/gitlab-shell/gitlab-shell.log` for
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omnibus package or in `/home/git/gitlab-shell/gitlab-shell.log` for
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installations from source.
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GitLab shell is used by Gitlab for executing Git commands and provide
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SSH access to Git repositories. For example:
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```
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I, [2015-02-13T06:17:00.671315 #9291] INFO -- : Adding project root/example.git at </var/opt/gitlab/git-data/repositories/root/dcdcdcdcd.git>.
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I, [2015-02-13T06:17:00.679433 #9291] INFO -- : Moving existing hooks directory and symlinking global hooks directory for /var/opt/gitlab/git-data/repositories/root/example.git.
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```
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### unicorn\_stderr.log
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This file lives in `/var/log/gitlab/unicorn/unicorn_stderr.log` for
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omnibus package or in `/home/git/gitlab/log/unicorn_stderr.log` for
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installations from source.
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Unicorn is a high-performance forking Web server which is used for
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serving the GitLab application. You can look at this log if, for
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example, your application does not respond. This log contains all
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information about the state of unicorn processes at any given time.
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```
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I, [2015-02-13T06:14:46.680381 #9047] INFO -- : Refreshing Gem list
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I, [2015-02-13T06:14:56.931002 #9047] INFO -- : listening on addr=127.0.0.1:8080 fd=12
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I, [2015-02-13T06:14:56.931381 #9047] INFO -- : listening on addr=/var/opt/gitlab/gitlab-rails/sockets/gitlab.socket fd=13
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I, [2015-02-13T06:14:56.936638 #9047] INFO -- : master process ready
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I, [2015-02-13T06:14:56.946504 #9092] INFO -- : worker=0 spawned pid=9092
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I, [2015-02-13T06:14:56.946943 #9092] INFO -- : worker=0 ready
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I, [2015-02-13T06:14:56.947892 #9094] INFO -- : worker=1 spawned pid=9094
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I, [2015-02-13T06:14:56.948181 #9094] INFO -- : worker=1 ready
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W, [2015-02-13T07:16:01.312916 #9094] WARN -- : #<Unicorn::HttpServer:0x0000000208f618>: worker (pid: 9094) exceeds memory limit (320626688 bytes > 247066940 bytes)
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W, [2015-02-13T07:16:01.313000 #9094] WARN -- : Unicorn::WorkerKiller send SIGQUIT (pid: 9094) alive: 3621 sec (trial 1)
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I, [2015-02-13T07:16:01.530733 #9047] INFO -- : reaped #<Process::Status: pid 9094 exit 0> worker=1
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I, [2015-02-13T07:16:01.534501 #13379] INFO -- : worker=1 spawned pid=13379
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I, [2015-02-13T07:16:01.534848 #13379] INFO -- : worker=1 ready
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```
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