Support Article

LKDEADLOCKTHR (Thread Deadlock) error



System Administrator notes long running threads, Thread Deadlock and subsequent thread dumps which cause JVMs to go in unresponsive state with Pega 7.1.9.

Error Messages

2LKDEADLOCKTHR Thread "WebContainer : 50" (0x0000000048BD2C00)
3LKDEADLOCKWTR is waiting for:
4LKDEADLOCKOBJ java/util/concurrent/locks/ReentrantLock$NonfairSync@0x000000068E43F450
3LKDEADLOCKOWN which is owned by:
2LKDEADLOCKTHR Thread "hz._hzInstance_1_c4b8b18696768c7c545809e25fa9382c.cached.thread-24" (0x000000004A81EB00)
3LKDEADLOCKWTR which is waiting for:
4LKDEADLOCKOBJ java/util/concurrent/locks/ReentrantLock$NonfairSync@0x000000068E4E8D70
3LKDEADLOCKOWN which is owned by:
2LKDEADLOCKTHR Thread "WebContainer : 50" (0x0000000048BD2C00)

Steps to Reproduce

Not Applicable

Root Cause

A defect in Pegasystems’ code had been previously identified in a different product release.


Apply HFix-33710.

Published May 2, 2017 - Updated June 2, 2017

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