Sergey Chugunov created IGNITE-8657:
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Summary: Simultaneous start of bunch of client nodes may lead to
some clients hangs
Key: IGNITE-8657
URL: https://issues.apache.org/jira/browse/IGNITE-8657
Project: Ignite
Issue Type: Bug
Affects Versions: 2.5
Reporter: Sergey Chugunov
Assignee: Sergey Chugunov
Fix For: 2.6
h3. Description
PartitionExchangeManager uses a system property *IGNITE_EXCHANGE_HISTORY_SIZE*
to manage max number of exchange objects and optimize memory consumption.
Default value of the property is 1000 but in scenarios with many caches and
partitions it is reasonable to set exchange history size to a smaller values
around few dozens.
Then if user starts up at once more client nodes than history size some clients
may hang because their exchange information was preempted and no longer
available.
h3. Workarounds
Two workarounds are possible:
* Do not start at once more clients than history size.
* Restart hanging client node.
h3. Solution
Forcing client node to reconnect when server detected loosing its exchange
information prevents client nodes hanging.
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