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Re: slapd hangs - subtree insert failed: -30995
Hello dear list,
does anyone can help me?
Kindly regards and thanks
Meike
2012/6/1 Meike Stone <meike.stone@googlemail.com>:
> Hello,
>
> after inserting (ADD) one object, I get following messages in the
> logfile and the sapld hangs:
>
> Jun 1 09:02:24 ldap-01 slapd[8836]: conn=633789 op=1 ADD
> dn="cn=3,cn=2,cn=node,cn=1,cn=BBB,cn=AAA,cn=companies,ou=root"
> Jun 1 09:02:24 ldap-01 slapd[8836]: => bdb_idl_insert_key: c_get
> failed: DB_LOCK_DEADLOCK: Locker killed to resolve a deadlock (-30995)
> Jun 1 09:02:24 ldap-01 slapd[8836]: => bdb_dn2id_add 0x205e7e:
> subtree (cn=BBB,cn=AAA,cn=companies,ou=root) insert failed: -30995
>
> After this, I don't see any messages in the log till the staff was
> initiating a stop/start:
>
> Jun 1 09:09:29 ldap-01 slapd[8836]: daemon: shutdown requested and initiated.
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=633113 fd=9 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=405426 fd=12 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=633787 fd=13 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=1011 fd=14 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=1013 fd=18 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=632703 fd=33 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=632710 fd=37 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=632883 fd=39 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=632762 fd=40 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=633211 fd=41 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=633735 fd=45 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=632829 fd=47 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=633170 fd=48 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=633200 fd=50 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: conn=633788 fd=55 closed (slapd shutdown)
> Jun 1 09:09:29 ldap-01 slapd[8836]: slapd shutdown: waiting for 22
> operations/tasks to finish
> Jun 1 09:09:42 ldap-01 slapd[20945]: @(#) $OpenLDAP: slapd 2.4.30 $
> opensuse-buildservice@opensuse.org
> Jun 1 09:09:43 ldap-01 slapd[20945]: slapd starting
>
> After the error message at 09:02:24 the slapd did not answer any request.
> I cannot recover that problem in a test environment.
>
> The server is running in a MM environment (two masters), and the
> server gets 200-1200 search request/s
> Because of this high rate, we set "loglevel 0". Since we updated the
> slapd to 2.4.30 (from 2.4.28) the server crashes/hangs about on times
> a week.
> Because of this we set loglevel 256 back again.
>
>
> Would be very nice, if I can fix the problem, please help.
>
> Thanks in advance
>
> Meike
>
>
> PS:
> The slapd is a modified, self compiled version because of larger IDL
> with following changes:
>
> openldap-2.4.30/servers/slapd/back-bdb/idl.h:
> -#define BDB_IDL_LOGN 16 /* DB_SIZE is 2^16, UM_SIZE is 2^17 */
> +#define BDB_IDL_LOGN 17 /* DB_SIZE is 2^17, UM_SIZE is 2^18 */
>
> openldap-2.4.30/include/ldap_pvt_thread.h:
> -# define LDAP_PVT_THREAD_STACK_SIZE ( 1 * 1024 * 1024 * sizeof(void *) )
> +# define LDAP_PVT_THREAD_STACK_SIZE ( 2 * 1024 * 1024 * sizeof(void *) )
>
> All tests where running well!