11g OID Instance Blocked With High 'OPERATION' Time And Unreachable And High CPU Producing Stack Dumps

(Doc ID 2399208.1)

Last updated on MAY 21, 2018

Applies to:

Oracle Internet Directory - Version 11.1.1.7.0 and later
Information in this document applies to any platform.

Symptoms

Issue was reported whereby OAM connections into OID were blocked.

There were three oid instances as cluster configuration.
When the issue happened all three oid instances(oid1,2,3) became to unreachable and lead the CPU of the server in very high loading status.

oidldapd01sXXXX-xxxxx.log
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2017-05-07T13:37:32 *
SCOPE = 2
FILTER = (uid=e2025156)
REQD ATTRS = objectclass

EVENT "BER READ " time : 317 micro sec
EVENT "DIME OVRD " time : 5082 micro sec
EVENT "PRE DIME " time : 59 micro sec
EVENT "DB Fetch " time : 3987 micro sec
EVENT "FiltToSql " time : 47 micro sec
EVENT "Post Dime " time : 895 micro sec
EVENT "ACL overhd " time : 625 micro sec
EVENT "ACL ATTR " time : 156 micro sec
EVENT "Ber flush " time : 30 micro sec
TOTAL "Operation " time : 44864626 micro sec

TOTAL "Worker " time : 44864683 micro sec
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Top result:
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PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
70802 oracle 20 0 4183412 897856 16636 S 206.7 1.4 230:05.20 oidldapd
70687 oracle 20 0 4151668 981.5m 16340 S 198.1 1.5 228:03.27 oidldapd
70798 oracle 20 0 4133508 932012 16596 S 198.1 1.4 219:11.62 oidldapd
70790 oracle 20 0 4195104 963760 17056 S 184.6 1.5 229:52.44 oidldapd
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Dump output:
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#Dumping stack trace for OIDLDAPD (server) ...
calling caller argument values in hex
location (? means dubious value)
--------------------------------------------------------------------
gslusdsDumpStack() __restore_rt() arg#1: ???? value=0000000B (ptr)
arg#2: ???? value=6AA2DAD0 (ptr)
arg#3: ???? value=6AA2EFE8 (ptr)
arg#4: ???? value=6AA2F0B0 (ptr)
arg#5: ???? value=6AA316F8 (ptr)
arg#6: ???? value=00000001 (ptr)

__restore_rt() lwsfdsev()+3317 arg#1: ???? value=6AA34EE8 (ptr)
arg#2: ???? value=6AA34E90 (ptr)
arg#3: ???? value=6AA31F20 (ptr)
arg#4: ???? value=00000000 (ptr)
arg#5: ???? value=0000001F (ptr)
arg#6: ???? value=EC6E8C52 (ptr)
.............
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Changes

 

Cause

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