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List: openldap-technical
Subject: OpenLDAP 2.6 is holding connections open
From: Bradley T Gill <bgill () aep ! com>
Date: 2022-07-27 13:59:07
Message-ID: 84030354e2e44d13b5463c6c070e36cc () aep ! com
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All,
I have been struggling with upgrading OpenLDAP from 2.4 to 2.5/2.6 for some \
time. We have finally found that we needed to rebuild the schema from scratch and \
re-add our customizations. The database is now running much better with one \
lingering problem. Our Established connections just continues to grow until we run \
out of resources. Below is our cn=config (minus some unrelated info). This is on \
the same server as where the previous version was running, so changes are openldap \
and openssl versions. Any insights as to what might be causing the ESTABLISHED \
connections to continually grow would be very appreciated.
# AUTO-GENERATED FILE - DO NOT EDIT!! Use ldapmodify.
# CRC32 422b88f4
dn: cn=config
objectClass: olcGlobal
cn: config
olcAttributeOptions: lang-
olcConcurrency: 0
olcConnMaxPending: 100
olcConnMaxPendingAuth: 1000
olcGentleHUP: FALSE
olcIdleTimeout: 0
olcIndexSubstrIfMaxLen: 4
olcIndexSubstrIfMinLen: 2
olcIndexSubstrAnyLen: 4
olcIndexSubstrAnyStep: 2
olcIndexHash64: FALSE
olcIndexIntLen: 4
olcListenerThreads: 1
olcLocalSSF: 71
olcLogLevel: 256
olcLogFileOnly: FALSE
olcMaxFilterDepth: 1000
olcReadOnly: FALSE
olcSaslAuxpropsDontUseCopyIgnore: FALSE
olcSaslSecProps: noplain,noanonymous
olcSockbufMaxIncoming: 262143
olcSockbufMaxIncomingAuth: 16777215
olcThreads: 16
olcThreadQueues: 1
olcTLSCRLCheck: none
olcTLSVerifyClient: never
olcTLSProtocolMin: 0.0
olcToolThreads: 1
structuralObjectClass: olcGlobal
creatorsName: cn=config
createTimestamp: 20220726200129Z
olcAuthzPolicy: any
olcWriteTimeout: 30
olcSizeLimit: size.soft=unlimited size.hard=unlimited size.unchecked=unlimited
size.pr=1000 size.prtotal=unlimited
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<p class="MsoNormal"><span style="font-size:18.0pt">All,<o:p></o:p></span></p>
<p class="MsoNormal"><span \
style="font-size:18.0pt"> I \
have been struggling with upgrading OpenLDAP from 2.4 to 2.5/2.6 for some time. \
We have finally found that we needed to rebuild the schema from scratch and re-add \
our customizations. The database is now running much better with one \
lingering problem. Our Established connections just continues to grow until we \
run out of resources. Below is our cn=config (minus some unrelated info). \
This is on the same server as where the previous version was running, so changes are \
openldap and openssl versions. Any insights as to what might be causing the \
ESTABLISHED connections to continually grow would be very \
appreciated.<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt"><o:p> </o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt"># AUTO-GENERATED FILE - DO NOT EDIT!! Use \
ldapmodify.<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt"># CRC32 422b88f4<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">dn: cn=config<o:p></o:p></span></p> \
<p class="MsoNormal"><span style="font-size:18.0pt">objectClass: \
olcGlobal<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">cn: config<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcAttributeOptions: lang-<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcConcurrency: \
0<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcConnMaxPending: 100<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcConnMaxPendingAuth: \
1000<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcGentleHUP: FALSE<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcIdleTimeout: \
0<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcIndexSubstrIfMaxLen: 4<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcIndexSubstrIfMinLen: \
2<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcIndexSubstrAnyLen: 4<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcIndexSubstrAnyStep: \
2<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcIndexHash64: FALSE<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcIndexIntLen: \
4<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcListenerThreads: 1<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcLocalSSF: \
71<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcLogLevel: 256<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcLogFileOnly: \
FALSE<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcMaxFilterDepth: 1000<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcReadOnly: \
FALSE<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcSaslAuxpropsDontUseCopyIgnore: \
FALSE<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcSaslSecProps: noplain,noanonymous<o:p></o:p></span></p> \
<p class="MsoNormal"><span style="font-size:18.0pt">olcSockbufMaxIncoming: \
262143<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcSockbufMaxIncomingAuth: 16777215<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcThreads: 16<o:p></o:p></span></p> \
<p class="MsoNormal"><span style="font-size:18.0pt">olcThreadQueues: \
1<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcTLSCRLCheck: none<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcTLSVerifyClient: \
never<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcTLSProtocolMin: 0.0<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcToolThreads: \
1<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">structuralObjectClass: olcGlobal<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">creatorsName: \
cn=config<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">createTimestamp: 20220726200129Z<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcAuthzPolicy: \
any<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt">olcWriteTimeout: 30<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt">olcSizeLimit: size.soft=unlimited \
size.hard=unlimited size.unchecked=unlimited<o:p></o:p></span></p> <p \
class="MsoNormal"><span style="font-size:18.0pt"> size.pr=1000 \
size.prtotal=unlimited<o:p></o:p></span></p> <p class="MsoNormal"><span \
style="font-size:18.0pt"><o:p> </o:p></span></p> </div>
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