> -----Original Message-----
> From: freeipa-users-boun...@redhat.com [mailto:freeipa-users-
> boun...@redhat.com] On Behalf Of Ludwig Krispenz
> Sent: Tuesday, February 23, 2016 9:31 AM
> To: freeipa-users@redhat.com
> Subject: Re: [Freeipa-users] lock table errors
> 
> 
> On 02/23/2016 03:02 PM, Andy Thompson wrote:
> > Came across one of my replicas this morning with the following in the
> > error log
> >
> > [20/Feb/2016:17:23:38 -0500] - libdb: BDB2055 Lock table is out of
> > available lock entries
> > [20/Feb/2016:17:23:38 -0500] entryrdn-index - _entryrdn_delete_key:
> > Deleting C1 failed; Cannot allocate memory(12)
> > [20/Feb/2016:17:23:38 -0500] - database index operation failed BAD
> > 1031, err=12 Cannot allocate memory
> > [20/Feb/2016:17:23:38 -0500] -
> > index_del_entry(changenumber=1328662,cn=changelog, 0x26) failed (12)
> > [20/Feb/2016:17:23:38 -0500] DSRetroclPlugin - delete_changerecord:
> > could not delete change record 1328662 (rc: 1)
> > [20/Feb/2016:17:23:38 -0500] - libdb: BDB2055 Lock table is out of
> > available lock entries
> > [20/Feb/2016:17:23:38 -0500] entryrdn-index - _entryrdn_get_elem:
> > Failed to position cursor at the key: 1328666: Cannot allocate
> > memory(12)
> > [20/Feb/2016:17:23:38 -0500] entryrdn-index - _entryrdn_delete_key:
> > Failed to position cursor at the key: 1328666: Cannot allocate
> > memory(12)
> > [20/Feb/2016:17:23:38 -0500] - libdb: BDB2055 Lock table is out of
> > available lock entries
> > [20/Feb/2016:17:23:38 -0500] - database index operation failed BAD
> > 1031, err=12 Cannot allocate memory
> > [20/Feb/2016:17:23:38 -0500] -
> > index_del_entry(changenumber=1328663,cn=changelog, 0x26) failed (12)
> > [20/Feb/2016:17:23:38 -0500] NSMMReplicationPlugin - changelog program
> > - _cl5CompactDBs: failed to compact
> > 5f1d2b12-cf1411e4-b055ba8a-f4b484f7; db error - 12 Cannot allocate
> > memory
> > [20/Feb/2016:17:23:38 -0500] DSRetroclPlugin - delete_changerecord:
> > could not delete change record 1328663 (rc: 1)
> > [20/Feb/2016:17:23:41 -0500] ldbm_back_delete - conn=0 op=0 [retry: 1]
> No original_tombstone for changenumber=1330335,cn=changelog!!
> >
> > And then nothing.  Was troubleshooting some clients that were having
> issues resolving some trusted domain users.
> >
> > I restarted IPA and it rolled through a few thousand missing change
> > records
> >
> > 23/Feb/2016:08:39:34 -0500] DSRetroclPlugin - delete_changerecord:
> > could not delete change record 1328696 (rc: 32)
> >
> > Any thoughts as to what might have caused the lock table errors?
> in BerkeleyDB this means that the number of pages which would have to be
> locked in one transaction exceeds the configured number of locks. This could
> happen if eg a large group is deleted and for each member of the group
> inside the same transaction the memberof attribute has to be modified
> >


Are there any configuration options to increase that setting?  And would it 
have caused the replica to become unresponsive?

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