[jira] [Created] (IGNITE-957) Rest handlers seems to do excessive submissions of the handling logic to parallel threads

[Anton Vinogradov (Jira)]

Yakov Zhdanov created IGNITE-957:
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             Summary: Rest handlers seems to do excessive submissions of the handling logic to parallel threads
                 Key: IGNITE-957
                 URL: https://issues.apache.org/jira/browse/IGNITE-957
             Project: Ignite
          Issue Type: Bug
          Components: newbie
            Reporter: Yakov Zhdanov


Lets trace execution of cache PUT command:
# request read by HTTP or TCP server
# then flow gets to org.apache.ignite.internal.processors.rest.GridRestProcessor#handleAsync0
# logic is submitted to REST pool - {{org/apache/ignite/internal/processors/rest/GridRestProcessor.java:139}} - which is correct since we need to free io (nio) worker thread.
# (THIS CAN BE REMOVED) then one more submission - system pool submission - see {{ctx.closure().callAsync()}} at {{org.apache.ignite.internal.processors.rest.handlers.cache.GridCacheCommandHandler#executeCommand(java.util.UUID, java.util.UUID, java.lang.String, boolean, java.lang.Object, org.apache.ignite.internal.processors.rest.handlers.cache.GridCacheCommandHandler.CacheProjectionCommand)}}

So, the points are:
# Flow of each command has to be traced and excessive submissions has to be removed
# Changes should be tested for all protocols: HTTP and MEMCACHED. TCP is less prio since it will be dropped once client communication is ready.



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