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IT36801: NODE REPLICATION MAY FAIL FOR FILESPACES CONTAINING A LARGE NUMBER OF REPLICATED OBJECTS

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APAR status

  • Closed as program error.

Error description

  • Node replication may fail if the count of replicated objects
    associated with a single filespace exceeds ~2.1 billion. The
    activity log excerpt from the source server will show errors
    similar to the following:
    
    ANR0162W Supplemental database diagnostic information:
    -1:22003:-802 ([IBM][Cli Driver][DB2/LINUXPPC64LE] SQL0802N
    Arithmetic overflow or other arithmetic exception occurred.
    SQLSTATE=22003).
    ANR0106E nrmain.c(29794): Unexpected error 2343 fetching row in
    table "Replicated.Objects".
    ANR1936E Replication of BACKUP data for file space /test (fsid
    1) on node TESTNODE failed with reason: Reason code 2343.
    
    The replication operation will continue to run for all other
    nodes and filespaces; replication will only fail for the
    filespace with the large number of replicated objects.
    
    
    Support/Customer Diagnostics:
    SQL queries can be issued against the replicated_objects
    database table to confirm whether you are affected by this
    problem. The ANR1936E error seen above indicates the affected
    node and filespace name/id. Issue the following query to
    determine the nodeid associated with the affected node (eg.
    TESTNODE):
    
    $ db2 connect to tsmdb1
    $ db2 set schema tsmdb1
    $ db2 "select nodeid from nodes where nodename='TESTNODE'"
    
    Then, issue the following queries to obtain counts of the
    replicated objects associated with this node and filespace
    (where <nodeid> represents the node id returned from the
    previous query and <fsid> represents the filespace id referenced
    in the ANR1936E error):
    
    $ db2 "select count(*) from replicated_objects where
    nodeid=<nodeid> and fsid=<fsid> for read only with ur""
    $ db2 "select count_big(*) from replicated_objects where
    nodeid=<nodeid> and fsid=<fsid> for read only with ur""
    
    If affected by this problem, the expectation is that the select
    statement issued with the count(*) function will fail due to the
    SQL0802N error, whereas the select statement issued with the
    count_big(*) function will complete successfully and return a
    count of objects exceeding 2.1 billion.
    
    
    Spectrum Protect Versions Affected:
    All supported IBM Spectrum Protect server versions
    
    
    Initial Impact:
    Medium
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All IBM Spectrum Protect server users.                       *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See error description.                                       *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Apply fixing level when available. This problem is currently *
    * projected to be fixed in levels 8.1.12.200 and 8.1.13. Note  *
    * that this is subject to change at the discretion of IBM.     *
    ****************************************************************
    

Problem conclusion

  • This problem was fixed.
    Affected platforms for reported release:  AIX, Linux, and
    Windows.
    Platforms fixed:  AIX, Linux, and Windows.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT36801

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    81L

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2021-05-05

  • Closed date

    2021-08-30

  • Last modified date

    2021-08-30

  • 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

    TSM SERVER

  • Fixed component ID

    5698ISMSV

Applicable component levels

  • R81A PSY

       UP

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGSG7","label":"Tivoli Storage Manager"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"81L","Line of Business":{"code":"LOB26","label":"Storage"}}]

Document Information

Modified date:
28 April 2022