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<div class="moz-cite-prefix">On 06/11/2013 12:12 AM, Mahadevan,
Venkat wrote:<br>
</div>
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<p class="MsoNormal">Hello,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My apologies if this has been discussed
before but I couldn’t find anything in the archives<o:p></o:p></p>
<p class="MsoNormal">beyond this: <a moz-do-not-send="true"
href="https://lists.fedoraproject.org/pipermail/389-commits/2011-January/004560.html">https://lists.fedoraproject.org/pipermail/389-commits/2011-January/004560.html</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The issue I am encountering are the
following errors when an entry is being added to the<o:p></o:p></p>
<p class="MsoNormal">directory or deleted from the directory –
it seems an operations error err=1 corresponds to<o:p></o:p></p>
<p class="MsoNormal">a failure in the backend ldbm (see log
snippets below).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I can reproduce these errors consistently
by running a JMeter test to add and delete<o:p></o:p></p>
<p class="MsoNormal">entries. It always transpires that some
entries will fail to add or delete and will throw an
operations<o:p></o:p></p>
<p class="MsoNormal">error err=1 and a corresponding ldbm error.
</p>
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</blockquote>
Hi Mahadevan,<br>
<br>
<blockquote>This error means that the server is not able to replace
in the entry cache and old entry by a new one.<br>
It triggers the failure of the operation that is not committed
although it has a csn.<br>
Do you have special tuning of the entry cache (nsslapd-cachesize,
nsslapd-cachememsize) ?<br>
I do not know what is going on but a possibility (ADD/DEL) is for
example that the parent entry get out of the entry cache while
processing the operation. For MOD, it could be the RUV itself !.<br>
<br>
</blockquote>
best regards<br>
thierry<br>
<blockquote
cite="mid:57ABCAA446A34248A21072281010E3305B2BF6A4@S-ITSV-MBX01P.ead.ubc.ca"
type="cite">
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<p class="MsoNormal"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">----------------<o:p></o:p></p>
<p class="MsoNormal">In the error log I see things like:<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:46:43 -0700] -
ldbm_back_delete: modify_switch_entries failed<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:58 -0700] -
ldbm_back_modify: modify_switch_entries failed<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:59 -0700] -
ldbm_back_modify: modify_switch_entries failed<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:59 -0700] -
ldbm_back_modify: modify_switch_entries failed<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:59 -0700] -
ldbm_back_add: modify_switch_entries failed<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:59 -0700] -
ldbm_back_modify: modify_switch_entries failed<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:00 -0700] -
ldbm_back_modify: modify_switch_entries failed<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:00 -0700] -
ldbm_back_add: modify_switch_entries failed<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:00 -0700] -
ldbm_back_modify: modify_switch_entries failed<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:01 -0700] -
ldbm_back_modify: modify_switch_entries failed<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:02 -0700] -
ldbm_back_modify: modify_switch_entries failed<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:04 -0700] -
ldbm_back_modify: modify_switch_entries failed<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:04 -0700] -
ldbm_back_add: modify_switch_entries failed<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In the access log I see things like:<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:59 -0700] conn=3516 SSL
256-bit AES<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:59 -0700] conn=3516 op=0
BIND dn="cn=Directory Manager" method=128 version=3<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:59 -0700] conn=3516 op=0
RESULT err=0 tag=97 nentries=0 etime=0 dn="cn=directory
manager"<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:59 -0700] conn=3516 op=1
ADD dn="uid=jmeter25,dc=dev,dc=id,dc=ubc,dc=ca"<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:59 -0700] conn=3516 op=1
RESULT err=1 tag=105 nentries=0 etime=0
csn=51b64a46001b01f50000<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:59 -0700] conn=3516 op=2
DEL dn="uid=jmeter25,dc=dev,dc=id,dc=ubc,dc=ca"<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:59 -0700] conn=3516 op=2
RESULT err=32 tag=107 nentries=0 etime=0<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:59 -0700] conn=3516 op=3
UNBIND<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:50:59 -0700] conn=3516 op=3
fd=107 closed - U1<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:00 -0700] conn=3533 SSL
256-bit AES<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:00 -0700] conn=3533 op=0
BIND dn="cn=Directory Manager" method=128 version=3<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:00 -0700] conn=3533 op=0
RESULT err=0 tag=97 nentries=0 etime=0 dn="cn=directory
manager"<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:00 -0700] conn=3533 op=1
ADD dn="uid=jmeter57,dc=dev,dc=id,dc=ubc,dc=ca"<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:00 -0700] conn=3533 op=1
RESULT err=1 tag=105 nentries=0 etime=0
csn=51b64a46004d01f50000<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:00 -0700] conn=3533 op=2
DEL dn="uid=jmeter57,dc=dev,dc=id,dc=ubc,dc=ca"<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:00 -0700] conn=3533 op=2
RESULT err=32 tag=107 nentries=0 etime=0<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:00 -0700] conn=3533 op=3
UNBIND<o:p></o:p></p>
<p class="MsoNormal">[10/Jun/2013:14:51:00 -0700] conn=3533 op=3
fd=110 closed - U1<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Our configuration is as follows:<o:p></o:p></p>
<p class="MsoNormal">2 Master servers (writes always go to one)
in a MMR config.<o:p></o:p></p>
<p class="MsoNormal">3 Replica servers with replication
agreements to each of the 2 masters.<o:p></o:p></p>
<p class="MsoNormal">RHEL 6.4 x64 Linux
2.6.32-358.2.1.el6.x86_64<o:p></o:p></p>
<p class="MsoNormal">389-ds-base.x86_64
1.2.11.15-14.el6_4 @rhel-x86_64-server-6<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Has anyone seen this before and solved the
issue? This is a big blocker for us before we can deploy in
production.
<o:p></o:p></p>
<p class="MsoNormal">So far, I am really liking 389 and want to
see it in use at our institution. Thank you for any
assistance.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Kind regards,<o:p></o:p></p>
<p class="MsoNormal"><span
style="color:#1F497D;mso-fareast-language:EN-CA">--------------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;mso-fareast-language:EN-CA">Venkat
Mahadevan<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;mso-fareast-language:EN-CA">Programmer
Analyst II, Identity and Access Management<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;mso-fareast-language:EN-CA">Information
Technology | Engage. Envision. Enable.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;mso-fareast-language:EN-CA">The
University of British Columbia<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;mso-fareast-language:EN-CA">Tel:
604.822.4112<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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