SAP Knowledge Base Article - Preview

2758838 - IQ MPX: Coordinator hang with locks and s_dbmvbio::EnableRemoteFiles involved

Symptom

IQ MPX Coordinator hang. 
No error in IQMSG.
No new connection can be established.
IQ needed to be kill -9 around when the customer realized the hang.

Stack trace:

Thread 760 (Thread 0x7fd809c4f700 (LWP 17134)):
in __lll_lock_wait
_L_lock_854
pthread_mutex_lock
hos_mutex::Lock
hos_mutex_with_tid::Lock
hos_mutex_with_tid_lock::Lock
hos_mutex_with_tid_lock::hos_mutex_with_tid_lock
s_dbmvbio::EnableRemoteFiles
st_mpxView::MIPCResume
st_mpxHeartbeat::Monitor
hos_daemon::Task
hos_thread::Main
hos_lwtask::Start

Thread 1 (Thread 0x7fdc7d8bf720 (LWP 15715)):
__lll_lock_wait
_L_lock_854
pthread_mutex_lock
st_txnMgr::BeginTransaction
db_BeginTransaction::Execute
st_command::DoCmdThroughResourceGate
in st_iqtxn::BeginTxn
UIQTxn_BeginTxn
st_SAIQInterfaceInfo::callFunction
st_SAIQInterface::RunIQFunc
st_SAIQInterface::Execute
BeginIQTransaction
saint_iqthresholdtxn::FlushForCommit
ri_commit

Read more...

Environment

  • SAP IQ 16.0
  • SAP IQ 16.1

Product

SAP IQ 16.0 ; SAP IQ 16.1

Keywords

KBA , BC-SYB-IQ , Sybase IQ , Problem

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