- other people
- Jun 27, 2004
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 Associate Christ
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edit: wrong thread lol
other people fucked around with this message at 23:46 on Feb 27, 2016
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Feb 27, 2016 23:24
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- Adbot
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ADBOT LOVES YOU
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May 21, 2024 06:21
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- other people
- Jun 27, 2004
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Associate Christ
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So I'm at my wits end troubleshooting a strange issue on an Ubuntu 14.04.3 VM running on VMware.
The VM itself is fairly massive (46 vCPUs/128GB RAM) and is used as a database server in production. Our DBA is just now making use of it to transfer (via rsync job) a large amount of data from an old DB to this new one. At some point, about 2-3 hours, after starting the rsync job, the VM just hangs. CPU usage (from the ESX host level) goes crazy, and up to that point the memory usage on the host has been pegged at 98% or so.
After we reboot the hung VM (it's not a kernel panic, so no kernel dump/core dump), we look in the syslog and see almost nothing recorded from the hang, just business as usual syslog stuff.
Any hints on what (if any) options I can enable to get some more verbose logging on the VM?
Get a vmcore. Manually trigger it with sysrq or use whatever vmware provides to get a memory dump from the vm.
Surely your company has a support contact with the vm OS vendor for things just like this?
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May 14, 2016 12:11
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Feb 27, 2016 23:24
