PM39989: Data is lost during shard promotion with a container teardown.

Download WebSphere eXtreme Scale V6.1.0 Fix Pack 5 compatibility fix

APAR status

• Closed as program error.

Error description

• In eXtreme Scale 7.1, there is an issue regarding the promotion
  of replicas.
  

Local fix

• n/a
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Users with a large quantity of data that    *
  *                  might exceed normal timeouts during         *
  *                  the teardown process.                       *
  ****************************************************************
  * PROBLEM DESCRIPTION: When the teardown process occurs        *
  *                      on container server, data is lost       *
  *                      duing the shard promotion.              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  For shards have a large quantity of data that might take
  several minutes to replicate to a new shard, the container
  server teardown timeout might remove the existing primary shard
  before a new primary shard has all of the data. As a result,the
  primary
  shard seems to have lost data because the data did not
  successfully transition from the old primary shard.
  

Problem conclusion

• Allow a new shard to copy from existing replica shards if the
  old
  primary shard is removed before the transition is complete.
  

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

  XD EXTREME SCAL

• Fixed component ID

  5724J3402

Applicable component levels

• R700 PSY

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