Valentin Kulichenko created IGNITE-6219:
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Summary: IgniteCache#loadCache executes local load in caller thread
Key: IGNITE-6219
URL: https://issues.apache.org/jira/browse/IGNITE-6219
Project: Ignite
Issue Type: Bug
Components: cache
Affects Versions: 2.1
Reporter: Valentin Kulichenko
Priority: Critical
Fix For: 2.2
{{IgniteCache#loadCache}} method broadcasts an internal task under the hood. If
one of the jobs are local (i.e. if {{loadCache}} is invoked on server node),
this job is executed in a caller thread, potentially *before all or some remote
requests are sent*. Since data loading is generally long running process, its
duration doubles in this scenario.
Possible solution is to check the list of nodes before task execution, and if
local node is there, execute on remote nodes first, and only then submit to
local node. This way we make sure that remote nodes never wait for the local
node.
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