Alex
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Latest activity by Alex-
Alex commented,
Hi everybody, We have released new MySQL/Galera versions which should fix that OOM bug (certification index is now cleaned up as soon as it exceeds certain size) Although the bug is in Galera libra...
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Alex commented,
Mark, this is exactly the case of certification index buildup. This is fixed in trunk.
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Alex commented,
Mark, It depends on what you mean by "helping". Indeed, deleting a million rows from a table is a good example of a key-only transaction that would take a lot of RAM in Galera while containing no d...
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Alex commented,
Mark, I'm quite confident that OOM that you have had was due to certification index buildup. We have identified a test case where certification index could grow up to 1.2Gb. So it certainly can be ...
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Alex commented,
Hi everybody. I'd like to let you know that we have identified at least one source of trouble to be certification index being purged insufficiently frequently and implementing a fix for it to be in...
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Alex commented,
So, which table crashes the cluster, devices_i? Or any three of them can?
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Alex commented,
Hi, That's strange. Galera, or MySQL-wsrep patch for that matter does not create any temporary tables, at least intentionally. MySQL itself can in some circumstances, but this should not be happen...
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Alex commented,
Thanks for the logs, they tell a story of a tragic beauty: Everything went well until at around 14:40-14:50 slaves (db1, db3, db4) started to experience some performance problems, most likely IO st...
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Alex commented,
Looking at the log, this particular node lost connectivity to the rest of the cluster at around 2:42:00. Anything specific happened at that point? Also it looks like 10.176.215.163 was restarted th...
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Alex commented,
Hi, Looking at your logs, I could not help noticing: 111115 17:17:31 InnoDB: Initializing buffer pool, size = 10.5G...111115 17:17:32 InnoDB: Log file ./ib_logfile0 did not exist: new to be create...