IT04626: READAHEAD DAEMON REPORTS LOGREAD ERRORS IN OUT OF BUFFER SITUATION

APAR status

• Closed as program error.

Error description

• The server may report the following error
  
  11:26:04   tx 0x205370b8, tx_flags 0x80001
  11:26:04   tx_loguniq 0, tx_logpos 0x0
  11:26:04
  11:26:04  IBM Informix Dynamic Server Version 12.10.FC4 Software
  Serial Number A
  AA#B000000
  
  11:26:04  Assert Failed: Dynamic Server must abort
  11:26:04   Who: Session(11, informix@server, 0, 7000000205370b8)
                  Thread(18, readahead_0, 7000000204f2b48, 1)
                  File: rslog.c Line: 3446
  11:26:04   Results: Dynamic Server must abort
  11:26:04   Action: Reinitialize shared memory
  
  11:26:04  Stack for thread: 18 readahead_0
  
   base: 0x070000002284c000
    len:   69632
     pc: 0x00000001000adbd0
    tos: 0x070000002285b910
  state: running
     vp: 1
  
  (oninit)afstack
  (oninit)afhandler
  (oninit)afcrash_interface
  (oninit)logerr
  (oninit)logread
  (oninit)ra_do_lc_req
  (oninit)readahead_daemon
  (oninit)th_init_initgls
  (oninit)startup
  
  facing into a situation where all configured BUFFER in the
  BUFFERPOOL are modified
  and the readahead thread is not able to process a scheduled read
  request for a session
  with isolation level last committed facing on a modified row
  during a read.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Anyone                                                       *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Update to IDS-12.10.xC5                                      *
  ****************************************************************
  

Problem conclusion

• Problem Fixed In IDS-12.10.xC5
  

Temporary fix

Comments

APAR Information

• 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

  IFMX ULT WHSE E

• Fixed component ID

  IM0019BOS

Applicable component levels

• RC10 PSN

     UP

• RC10 PSY

     UP