IBM Support

JR31289: THE REPLICATION CAPTURE PROGRAM SETS TOO SMALL A BUFFER SIZE FOR SOME LOG ENTRIES TO BE READ.

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • The replication capture program sets too small a buffer size
    for some log entries to be read.  When this issue is
    encountered, a message similar to the following will be seen in
    the apply log:
    2008-11-11-15.57.43.278826 ASN0005E  CAPTURE "ASN16" :
    "txrdThread". The Capture
    program encountered an error when reading the DB2 log.  The log
    sequence number
    is "0000:0000:0386:D2A2:3D8E", the SQLCODE is "-2650", and the
    reason code is
    "poLogBufferdb2ReadLog8".
    
    A message similar to the following will be seen in the
    db2diag.log:
    2008-10-30-11.01.10.074716-240 I8913095E578        LEVEL: Error
    PID     : 9255                 TID  : 206745626976 PROC :
    db2sysc 0
    INSTANCE: SAMPLE             NODE : 000          DB   : TEST_V9
    APPHDL  : 0-102                APPID: *LOCAL.SAMPLE.081023154329
    AUTHID  : TEST
    EDUID   : 78                   EDUNAME: db2agent (IDGDM_V9) 0
    FUNCTION: DB2 UDB, data protection services,
    sqlp_AsyncLogReadAPI, probe:220
    DATA #1 : String, 125 bytes
    Error: sqlcode -2650, rc 256, hflag2LsnReuse 0
    action 1, startLSN 036F EEE3 CFBC, endLSN 036F EF3D 7F97,
    logBufferSize 204800
    
    The permanent fix, included starting DB2 v9.5 FP4, is to have
    the default buffer size increased from 200KB to 256KB for
    LUW ( Linux, Unix and Windows).
    
    This will support the max log record size in DB2 LUW.
    

Local fix

  • On DB2 V9.5 FP3, logrdbufsz parameter can be set to set a
    buffer size large enough for the log entries to be read.
    

Problem summary

  •  AS DESCRIBED IN APAR
    

Problem conclusion

  •  FIXED IN V95FP4
    

Temporary fix

Comments

APAR Information

  • APAR number

    JR31289

  • Reported component name

    REPLICATION SER

  • Reported component ID

    5724N9800

  • Reported release

    950

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2008-12-02

  • Closed date

    2008-12-11

  • Last modified date

    2008-12-11

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    JR31296

Fix information

  • Fixed component name

    REPLICATION SER

  • Fixed component ID

    5724N9800

Applicable component levels

  • R950 PSY

       UP

[{"Business Unit":{"code":"BU050","label":"BU NOT IDENTIFIED"},"Product":{"code":"SSDP5R","label":"InfoSphere Replication Server"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.5","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
11 December 2008