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nginx cache - could not allocate node in cache keys zone

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CJ Ess

March 10, 2016 12:14PM

I have four servers in a pool running nginx with proxy_cache. One of the
nodes started spewing "could not allocate node in cache keys zone" errors
for every request (which gave 500 status). I did a restart and it started
working again.

What conditions cause that error in general?

If it happens again is there anything I can do to try and determine the
root cause?
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Subject	Author	Posted
nginx cache - could not allocate node in cache keys zone	CJ Ess	March 10, 2016 12:14PM
Re: nginx cache - could not allocate node in cache keys zone	CJ Ess	March 10, 2016 02:08PM
Re: nginx cache - could not allocate node in cache keys zone	Richard Stanway	March 10, 2016 02:40PM
Re: nginx cache - could not allocate node in cache keys zone	CJ Ess	March 10, 2016 04:20PM
Re: nginx cache - could not allocate node in cache keys zone	CJ Ess	March 10, 2016 05:08PM
Re: nginx cache - could not allocate node in cache keys zone	CJ Ess	March 10, 2016 02:16PM