Informix - Problem description
Problem IT34195 | Status: Closed |
ASSERT FAILURE OR HANG POSSIBLE ON PRIMARY SERVER WHEN USING CDCAND HDR SECONDARY SERVER | |
product: | |
INFORMIX SERVER / 5725A3900 / E10 - | |
Problem description: | |
An Informix server using 14.10.FC4W1 with CDC sessions and a connected HDR secondary server may experience an Assert Failure or hang and become unresponsive. The affected thread will be the dr_prsend thread which communicates with the HDR secondary. An example of the stack in the Assert Failure: Stack for thread: 221163 dr_prsend afstack mt_ex_throw_sig afsig_handler mt_wakeup_expedite_haslock mt_wakeup_expedite_haslock mt_wakeup_expedite cdrLSNQ_wakup cdrlsn_skiplist_remove cdrLSNQ_SetLSN@AF10_6 hdrSetLPG dr_primary_send dr_session_thread startup If a hang occurs then same dr_prsend thread may be seen in a constantly running state. Using a command such as pstack or procstack to obtain the stack of the CPU VP oninit process on which the dr_prsend thread runs may show a stack similar to: __fd_poll mt_nap_int mt_spin_lock_wait cdrLSNQ_wakup cdrlsn_skiplist_remove cdrLSNQ_SetLSN@AF10_6 hdrSetLPG dr_primary_send dr_session_thread startup system In both cases a restart of the primary server will be required. | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * Users of Informix Server prior to 12.10.xC15 and 14.10.xC5. * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to Informix Server 12.10.xC15 (when available) or * * 14.10.xC5. * **************************************************************** | |
Local Fix: | |
Solution | |
Workaround | |
**************************************************************** * USERS AFFECTED: * * Users of Informix Server prior to 12.10.xC15 and 14.10.xC5. * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to Informix Server 12.10.xC15 (when available) or * * 14.10.xC5. * **************************************************************** | |
Comment | |
Fixed in Informix Server 12.10.xC15 and 14.10.xC5. | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 13.09.2020 09.12.2020 09.12.2020 |
Problem solved at the following versions (IBM BugInfos) | |
Problem solved according to the fixlist(s) of the following version(s) |