RE: Websphere JVM JDBC to Oracle - FUTEX_WAIT_PRIVATE on Linux using strace/pstack/lsof - Experience?
Date: Fri, 2 Aug 2013 16:38:01 +0000
Message-ID: <9F15274DDC89C24387BE933E68BE3FD30D9EED89_at_MISOUT7MSGUSR9D.ITServices.sbc.com>
Not really my area, but we use a lot of Websphere - I thought there was a ojdbc6.jar recommended for WS 6.x ?
-----Original Message-----
From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Christopher.Taylor2_at_Parallon.com
Sent: Thursday, August 01, 2013 4:48 PM
To: oracle-l_at_freelists.org
Subject: Websphere JVM JDBC to Oracle - FUTEX_WAIT_PRIVATE on Linux using strace/pstack/lsof - Experience?
Env:
Websphere 6.1 JVM using ojdbc5.jar connecting to Oracle 10.2.0.4 database using JDBC
Some of the JDBC threads hang and the JVM spins eating CPU until it's practically useless and requires restarting.
Have any of you guys experienced this (perhaps related to /dev/random & /dev/urandom when generating secure keys)?
strace:
futex(0x49a89c08, FUTEX_WAIT_PRIVATE, 186043, {0, 999946406}) = -1 ETIMEDOUT (Connection timed out)
futex(0x5112c2f8, FUTEX_WAKE_PRIVATE, 1) = 0
gettimeofday({1375389580, 317039}, NULL) = 0
gettimeofday({1375389580, 317100}, NULL) = 0
clock_gettime(CLOCK_REALTIME, {1375389580, 317154025}) = 0
futex(0x49a89c08, FUTEX_WAIT_PRIVATE, 186045, {0, 999945975}) = -1 ETIMEDOUT (Connection timed out)
futex(0x5112c2f8, FUTEX_WAKE_PRIVATE, 1) = 0
gettimeofday({1375389581, 319063}, NULL) = 0
gettimeofday({1375389581, 319123}, NULL) = 0
clock_gettime(CLOCK_REALTIME, {1375389581, 319177002}) = 0
futex(0x49a89c08, FUTEX_WAIT_PRIVATE, 186047, {0, 999945998}) = -1 ETIMEDOUT (Connection timed out)
futex(0x5112c2f8, FUTEX_WAKE_PRIVATE, 1) = 0
gettimeofday({1375389582, 321095}, NULL) = 0
gettimeofday({1375389582, 321159}, NULL) = 0
clock_gettime(CLOCK_REALTIME, {1375389582, 321212411}) = 0
futex(0x49a89c08, FUTEX_WAIT_PRIVATE, 186049, {0, 999946589} <unfinished ...>
Chris D. Taylor
Oracle DBA
Parallon ITS
6640 Carothers Parkway
Franklin, TN 37067
P: 615.344-8419
christopher.taylor2_at_parallon.com
www.parallon.com<http://www.parallon.com>
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Received on Fri Aug 02 2013 - 18:38:01 CEST