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Diffstat (limited to 'doc/operations/cleaning_up_redis_sessions.md')
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diff --git a/doc/operations/cleaning_up_redis_sessions.md b/doc/operations/cleaning_up_redis_sessions.md index 93521e976d5..2a1d0a8c8eb 100644 --- a/doc/operations/cleaning_up_redis_sessions.md +++ b/doc/operations/cleaning_up_redis_sessions.md @@ -1,52 +1 @@ -# Cleaning up stale Redis sessions - -Since version 6.2, GitLab stores web user sessions as key-value pairs in Redis. -Prior to GitLab 7.3, user sessions did not automatically expire from Redis. If -you have been running a large GitLab server (thousands of users) since before -GitLab 7.3 we recommend cleaning up stale sessions to compact the Redis -database after you upgrade to GitLab 7.3. You can also perform a cleanup while -still running GitLab 7.2 or older, but in that case new stale sessions will -start building up again after you clean up. - -In GitLab versions prior to 7.3.0, the session keys in Redis are 16-byte -hexadecimal values such as '976aa289e2189b17d7ef525a6702ace9'. Starting with -GitLab 7.3.0, the keys are -prefixed with 'session:gitlab:', so they would look like -'session:gitlab:976aa289e2189b17d7ef525a6702ace9'. Below we describe how to -remove the keys in the old format. - -First we define a shell function with the proper Redis connection details. - -``` -rcli() { - # This example works for Omnibus installations of GitLab 7.3 or newer. For an - # installation from source you will have to change the socket path and the - # path to redis-cli. - sudo /opt/gitlab/embedded/bin/redis-cli -s /var/opt/gitlab/redis/redis.socket "$@" -} - -# test the new shell function; the response should be PONG -rcli ping -``` - -Now we do a search to see if there are any session keys in the old format for -us to clean up. - -``` -# returns the number of old-format session keys in Redis -rcli keys '*' | grep '^[a-f0-9]\{32\}$' | wc -l -``` - -If the number is larger than zero, you can proceed to expire the keys from -Redis. If the number is zero there is nothing to clean up. - -``` -# Tell Redis to expire each matched key after 600 seconds. -rcli keys '*' | grep '^[a-f0-9]\{32\}$' | awk '{ print "expire", $0, 600 }' | rcli -# This will print '(integer) 1' for each key that gets expired. -``` - -Over the next 15 minutes (10 minutes expiry time plus 5 minutes Redis -background save interval) your Redis database will be compacted. If you are -still using GitLab 7.2, users who are not clicking around in GitLab during the -10 minute expiry window will be signed out of GitLab. +This document was moved to [administration/operations/cleaning_up_redis_sessions](../administration/operations/cleaning_up_redis_sessions.md). |