[389-users] Re: OS err 12 - Cannot allocate memory
Hi,
Tuning of DBD #mutex is not possible and BDB uses a default value based
on #hash buckets.
This error is quite rare and I have no explanation why it happened in
your deployment.
Could you share the DB tuning entry (cn=config,cn=ldbm
database,cn=plugins,cn=config).
Also looking at the access/error logs can you identify some operations
that contributed to this error ?
best regards
thierry
On 10/7/20 9:39 AM, Jan Kowalsky wrote:
Hi all,
suddenly one of our ldap-servers crashed and don't restart.
When restarting dirsrv we find in logs:
libdb: BDB2034 unable to allocate memory for mutex; resize mutex region
mmap in opening database environment failed trying to allocate 500000
bytes. (OS err 12 - Cannot allocate memory)
Same error, if we run dbverify.
We are running version 3.5.17 of 389-ds on debian stretch:
389-ds 1.3.5.17-2
Ram doesn't seem to be the problem. Only 200 MB of 4GB is used.
The server is part of a replicated cluster. Other servers (running same
software version - more or less on the same virtualisation hardware) are
not affected.
But we got similar errors also some times in the past. But restarting
the service was always possible.
Any ideas?
Thanks and kind regards
Jan
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