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| author | Suren A. Chilingaryan <csa@suren.me> | 2018-03-23 06:51:23 +0100 |
|---|---|---|
| committer | Suren A. Chilingaryan <csa@suren.me> | 2018-03-23 06:51:23 +0100 |
| commit | c163108c0c0c7b7a4f05da411e98ac0f503e31e0 (patch) | |
| tree | 4934d1b2e98b0e8a94816848e44496e009e6755f /docs/troubleshooting.txt | |
| parent | cba41110aa086553192ed5a309a6b8031812c221 (diff) | |
| download | ands-c163108c0c0c7b7a4f05da411e98ac0f503e31e0.tar.gz ands-c163108c0c0c7b7a4f05da411e98ac0f503e31e0.tar.bz2 ands-c163108c0c0c7b7a4f05da411e98ac0f503e31e0.tar.xz ands-c163108c0c0c7b7a4f05da411e98ac0f503e31e0.zip | |
Fix critical bug in docker provisioner, improve mysql performance, provision system users/groups to enable NFS group mapping, various minor fixes
Diffstat (limited to 'docs/troubleshooting.txt')
| -rw-r--r-- | docs/troubleshooting.txt | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/docs/troubleshooting.txt b/docs/troubleshooting.txt index ef3c206..ae43c52 100644 --- a/docs/troubleshooting.txt +++ b/docs/troubleshooting.txt @@ -244,6 +244,17 @@ Storage or again we can compare lvm volumes which are used by Gluster bricks and which are not. The later ones should be cleaned up. Again there is the script. +MySQL +===== + - MySQL may stop replicating from the master. There is some kind of deadlock in multi-threaded SLAVE SQL. + This can be seen by exexuting (which should show a lot of slave threads waiting on coordinator to provide + load). + SHOW PROCESSLIST; + The remedy is to restart slave MySQL with 'slave_parallel_workers=0', give it a time to go, and then + restart back in the standard multithreading mode. + + + Performance =========== - To find if OpenShift restricts the usage of system resources, we can 'rsh' to container and check |