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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