Re: Ignite server showing this error class org.apache.ignite.IgniteCheckedException: Failed to send message (node may have left the grid or TCP connection cannot be established due to firewall issues)

[vdpyatkov <vl...@gmail.com>]

Hi,

The message appear when operation try to execute on stopping (or starting)
node.
If the message was throwed then means node out of cluster.

Tasks which will be execute in the node should be rout to another (by
failover SPI)

Please, explain where are you sow problem?



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Re: Ignite server showing this error class org.apache.ignite.IgniteCheckedException: Failed to send message (node may have left the grid or TCP connection cannot be established due to firewall issues)

[vdpyatkov <vl...@gmail.com>]

Hi,

1) Yes, default configuration failower SPI should by fit. Not need to
configure it specify at most cases.

2) Why are you think so? If it is, what are results when you try to execute
task, but node is out of topology?
Can you provide reproducer?

3) The information often contains in the logs from other nodes from cluster
and specific message in the node which leave the grid.
If a node get out of topology, this mean when Discovery SPI could not save
all nodes in cluster. You should concentrate on message from the service.

Usually node fail by reason of log time GC pause. Lock at the article[1] and
configure your system as recommended.

PS:

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[1]: https://apacheignite.readme.io/docs/jvm-and-system-tuning



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