In regards to the hangs in the Directory Server that were observed, it
seems related thread 15 that is polling waiting for something to come
through the pipe which never happens. The default poll timeout is
1800000(or 30 minutes!). Reducing this timeout should resolve the "hang".
Example:
# ldapmodify -p PORT -h HOST -D "cn=directory manager" -w PASSWORD
dn: cn=config
changetype: modify
replace: nsslapd-ioblocktimeout
nsslapd-ioblocktimeout: 10000
<press enter twice, then control-D>
This should be done for all the Directory Servers in your deployment.
Regards,
Mark
On 03/26/2015 06:18 PM, David Kreuter wrote:
We have been using FreeIPA since two years and were more than happy.
But since two weeks we are facing unexpected crashed and can not
really debug the strange behaviours. The crashes are definitely not
caused by connecting a new system or changing the LDAP schema heavily.
Following IPA is used:
Name : ipa-server
Arch : x86_64
Version : 3.3.3
Release : 28.0.1.el7.centos.3
Size : 4.1 M
I have followed the troubleshooting
guide http://directory.fedoraproject.org/docs/389ds/FAQ/faq.html#Troubleshooting
and activated logging and activated the core dumping. Unfortunately, I
cannot provide you any core dump, because it is not created after the
ipa servers crashes. I'm sure the dirsrv is causing the problem,
because when i restart the 389, then ipa works fine for a while.
Currently I have activated the replication log level 8192. The error
log shows no suspicious error or any fatal error. Following 389*
versions are used:
Installed Packages
389-ds-base.x86_64
1.3.3.1-15.el7_1 @/389-ds-base-1.3.3.1-15.el7_1.x86_64
389-ds-base-debuginfo.x86_64
1.3.1.6-26.el7_0 @base-debuginfo
389-ds-base-libs.x86_64
1.3.3.1-15.el7_1
Can you please provide some hint how I can debug this problem in more
detail. Btw, the ipa infrastructure consist of one master and one
replica. The server was also crashing, when the replica server was
turned off. Do you thing an upgrade would solve the problem as the
last resort?
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