APAR status
Closed as program error.
Error description
Server is hanging in checkpoint, two threads are sleeping while in critical section: Stack for thread: 5123 xchg_2.1 base: 0x000000027898d000 len: 69632 pc: 0x0000000140b45bcb tos: 0x000000027899d210 state: sleeping vp: 1 NT_yield_processor_mvp (66e95170, 0, 6a5a1fc8, 0) mt_yield (1, 80efcc40, 1, 1) wait_4_Qbuf (7899d508, 0, 1, 10) get_empty_Qbufh (0, 7899d508, 0, 146) wrt_minibin (e, 6a41b020, 7899d5d0, 7899d580) next_sort (6a4de830, 40b947b0, 407cf350, 6efcbaa0) prod_loop1 (1, 0, 407cf350, 0) producer_thread (6efcbfc0, 1, 1, 6a4de810) startup (4, 0, 0, 8000000) and Stack for thread: 5124 xchg_2.2 base: 0x0000000275221000 len: 69632 pc: 0x0000000140b45bcb tos: 0x0000000275231210 state: sleeping vp: 3 NT_yield_processor_mvp (6a5a1f80, 0, 6a5a1fc8, 0) mt_yield (1, 0, 1, 1) wait_4_Qbuf (75231508, 0, 1, 10) get_empty_Qbufh (0, 75231508, 0, 146) wrt_minibin (e, 6a41d010, 752315d0, 75231580) next_sort (80efc580, 40b947b0, 407cf350, 6efcbaa0) prod_loop1 (1, 0, 407cf350, 0) producer_thread (79d8f4e0, 2, 2, 80efc560) startup (0, 0, 0, 1000) This is the mb_collector thread for those two. Stack for thread: 5120 mb_collector base: 0x0000000286be3000 len: 69632 pc: 0x0000000140b45bcb tos: 0x0000000286bf3620 state: cond wait vp: 3 NT_yield_processor_mvp (928b45b0, 85, 30303030, 42313238) mt_fast_wait (928b4628, 928b45b0, 2, 821bb440) critblockflags (9282c000, 0, 10, 0) critwait (821bb438, 821bb440, 10, 821bb438) stmp_build_in (68b923a0, 19, 28, 0) stmp_build_exclusive (40dc26c0, 40dc26b4, 821bb420, 10) srtmakrawrun (1, 1, 6ea32550, 6a37a610) srtmakrun (7890af10, 0, 0, 741f74b0) srtoutput (1, 0, 0, 2) srtwrite (2, 6a41fd88, 6a634d20, 692d1b60) create_distrib (6a3eddb0, 0, 10, 6a41fd88) startup (7, 0, 0, 1000) The server is deadlocked/hung and this looks like idsdb00161011, which was fixed for the case of a pending checkpoint.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * IDS users * **************************************************************** * PROBLEM DESCRIPTION: * * The server could hang during index creation. The main_loop * * thread will appear to be running forever and other threads * * will be seen waiting for DYNAMIC_LOG condition to be * * cleared. * **************************************************************** * RECOMMENDATION: * * Upgrade to IDS 11.50xC7 and above. * ****************************************************************
Problem conclusion
Problem is fixed in IDS 11.50xC7.
Temporary fix
Comments
APAR Information
APAR number
IC65521
Reported component name
IBM IDS ENTRP E
Reported component ID
5724L2304
Reported release
B15
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2010-01-12
Closed date
2010-10-01
Last modified date
2010-10-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
IBM IDS ENTRP E
Fixed component ID
5724L2304
Applicable component levels
RB15 PSY
UP
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Document Information
Modified date:
01 October 2010