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Posted to issues@ignite.apache.org by "Valentin Kulichenko (JIRA)" <ji...@apache.org> on 2017/10/06 21:47:02 UTC

[jira] [Created] (IGNITE-6575) IgniteCache#get can return stale value when executed on backup

Valentin Kulichenko created IGNITE-6575:
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             Summary: IgniteCache#get can return stale value when executed on backup
                 Key: IGNITE-6575
                 URL: https://issues.apache.org/jira/browse/IGNITE-6575
             Project: Ignite
          Issue Type: Bug
          Components: cache
    Affects Versions: 2.2
            Reporter: Valentin Kulichenko


If write sync mode is {{PRIMARY_SYNC}} and {{readFromBackup=true}} (both values are defaults), calling {{get}} right after {{put}} for the same key in the same thread can return stale value. This happens because even local backup is updated asynchronously.

This is very confusing behavior for a user, would be good to make sure to update local backup synchronously even in {{PRIMARY_SYNC}} mode.

More details here: http://apache-ignite-developers.2346864.n4.nabble.com/PRIMARY-SYNC-readFromBackup-semantics-td22900.html



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