https://bugs.openldap.org/show_bug.cgi?id=10102
Issue ID: 10102 Summary: DB_LOCK_DEADLOCK Product: OpenLDAP Version: 2.4.23 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs@openldap.org Reporter: daniel.hy.chan@pccw.com Target Milestone: ---
We are getting "bdb_idl_insert_key: c_del failed: DB_LOCK_DEADLOCK: Locker killed to resolve a deadlock (-30995)" error in Openldap debug log. We are using Openldap.2.4.23 and have configured master-slave.
It seems insert error. Please kindly help.
https://bugs.openldap.org/show_bug.cgi?id=10102
Howard Chu hyc@openldap.org changed:
What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |INVALID Status|UNCONFIRMED |RESOLVED
--- Comment #1 from Howard Chu hyc@openldap.org --- (In reply to Daniel Chan from comment #0)
We are getting "bdb_idl_insert_key: c_del failed: DB_LOCK_DEADLOCK: Locker killed to resolve a deadlock (-30995)" error in Openldap debug log. We are using Openldap.2.4.23 and have configured master-slave.
It seems insert error. Please kindly help.
That release is 13 years old and no longer supported.
Deadlocks are a routine occurrence in BDB and get automatically retried, so this error message should be ignored.
Closing this ITS.
https://bugs.openldap.org/show_bug.cgi?id=10102
Daniel Chan daniel.hy.chan@pccw.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Resolution|INVALID |--- Status|RESOLVED |UNCONFIRMED
--- Comment #2 from Daniel Chan daniel.hy.chan@pccw.com --- Sep 20 00:00:04 : => bdb_idl_insert_key: c_del failed: DB_LOCK_DEADLOCK: Locker killed to resolve a deadlock (-30994) Sep 20 05:13:01 jdns11lds01b slapd_ifmc_m1[24626]: slap_client_connect: URI=ldap://xxxxxx:388 DN="cn=replication,ou=admin,dc=com" ldap_sasl_bind_s failed (-1) Sep 20 08:51:52 : conn=169555731 op=1 RESULT tag=105 err=19 text=some attributes not unique Sep 20 09:13:25 : => bdb_idl_insert_key: c_put id failed: DB_LOCK_DEADLOCK: Locker killed to resolve a deadlock (-30994)
Sep 21 10:10 Hunged and reboot.
After the error event, Our Openldap server experience High CPU load. And our application slow to connect to the Openldap or timeout when connect after 15 second. Finally, we had to restart master-slave servers in the end.
I would like to ask what methods can be used to determine the root cause of this issue? Please kindly help
Regards Daniel
https://bugs.openldap.org/show_bug.cgi?id=10102
Howard Chu hyc@openldap.org changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID
--- Comment #3 from Howard Chu hyc@openldap.org --- As I already said - that release is no longer supported. Upgrade to a current release.
https://bugs.openldap.org/show_bug.cgi?id=10102
Quanah Gibson-Mount quanah@openldap.org changed:
What |Removed |Added ---------------------------------------------------------------------------- Keywords|needs_review | Status|RESOLVED |VERIFIED
https://bugs.openldap.org/show_bug.cgi?id=10102
--- Comment #4 from Daniel Chan daniel.hy.chan@pccw.com --- Dear Sir/Madam
Currently I am using 2.4.23 Please suggest which version to upgrade.
Regards Daniel
https://bugs.openldap.org/show_bug.cgi?id=10102
--- Comment #5 from Howard Chu hyc@openldap.org --- I suggest you use one of the releases currently provided on https://openldap.org/
https://bugs.openldap.org/show_bug.cgi?id=10102
--- Comment #6 from Daniel Chan daniel.hy.chan@pccw.com --- I have tried upgrade from 2.4.23-> 2.4.59. it is worked. However, if I want to upgrade from 2.4.23-> 2.6.xx, please advise the details procedure. Thank you in advance
https://bugs.openldap.org/show_bug.cgi?id=10102
--- Comment #7 from Quanah Gibson-Mount quanah@openldap.org --- (In reply to Daniel Chan from comment #6)
I have tried upgrade from 2.4.23-> 2.4.59. it is worked. However, if I want to upgrade from 2.4.23-> 2.6.xx, please advise the details procedure. Thank you in advance
Hello,
This is not the forum for your upgrade questions. Please subscribe to the openldap-technical list and ask them there:
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openldap-its＠openldap.org