Dmitry Karachentsev created IGNITE-4395:
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Summary: Implement communication backpressure per policy - SYSTEM
or PUBLIC
Key: IGNITE-4395
URL: https://issues.apache.org/jira/browse/IGNITE-4395
Project: Ignite
Issue Type: Improvement
Components: cache, compute
Affects Versions: 1.7
Reporter: Dmitry Karachentsev
1) Start two data nodes with some cache.
2) From one node in async mode post some big number of jobs to another. That
jobs do some cache operations.
3) Grid hangs almost immediately and all threads are sleeping except public
ones, they are waiting for response.
This happens because all cache and job messages are queued on communication and
limited with default number (1024). It looks like jobs are waiting for cache
responses that could not be received due to this limit.
Proper solution here is to have communication backpressure per policy -
SYSTEM or PUBLIC, but not single point as it is now. It could be achieved
with having two queues per communication session or (which looks a bit
easier to implement) to have separate connections.
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