DB2 - Problem description
Problem IT24830 | Status: Closed |
STEPPING TQS MAY EXPERIENCE A HANG IN SITUATIONS WHEN WE ARE TRYING TO STOP TQ DRAINING AS A PERFORMANCE OPTIMIZATION. | |
product: | |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 | |
Problem description: | |
Stepping TQs may experience a hang in situations when we are trying to stop TQ draining as a performance optimization. This may result in a application/agent hang issue on this SQL statement. The stacks for this applciation may look similar to the following: thread_wait sqloWaitEDUWaitPost WaitRecvReady ReceiveBuffer sqlkq_process_ctl_msg sqlktins sqlritqb sqlriSectInvoke sqlrr_smp_router And thread_wait sqloWaitEDUWaitPost WaitRecvReady ReceiveBuffer getNextBuffer sqlkd_rcv_buffer sqlkd_rcv_get_next_buffer sqlkd_rcv_init sqlkdReceiveReply sqleReceiveAndMergeReplies sqlrigca sqlrices | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * All Platforms. * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to Db2 v10.5 Fixpack 10 or later. * **************************************************************** | |
Local Fix: | |
db2set DB2_RUNTIME_DEBUG_FLAGS=40000000 | |
Solution | |
Workaround | |
not known / see Local fix | |
BUG-Tracking | |
forerunner : IT24811 follow-up : | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 24.04.2018 16.07.2018 16.07.2018 |
Problem solved at the following versions (IBM BugInfos) | |
Problem solved according to the fixlist(s) of the following version(s) |