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From "Dmitriy Pavlov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-7920) Research local crash recovery speed after stop in the middle of checkpoint
Date Mon, 12 Mar 2018 15:05:00 GMT
Dmitriy Pavlov created IGNITE-7920:
--------------------------------------

             Summary: Research local crash recovery speed after stop in the middle of checkpoint
                 Key: IGNITE-7920
                 URL: https://issues.apache.org/jira/browse/IGNITE-7920
             Project: Ignite
          Issue Type: Task
          Components: persistence
            Reporter: Dmitriy Pavlov
            Assignee: Dmitriy Pavlov


When using Ignite as a database on one node, I observed that the recovery time using the WAL
exceeds the time between checkpoints.

Ignite logs message that it is restored after stopping in the middle of the checkpoint 

I use the frequency of CP - setCheckpointFrequency (60 * 1000), but at server with HDD and
heavy IO load. At least 16 minutes required to restore Ignite after stop.

Server monitoring states that  high rate of IOPS ocurred and it is constraint (there is plenty
of CPU/RAM)



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