Alexey Goncharuk created IGNITE-5580:
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Summary: Improve node failure cause information
Key: IGNITE-5580
URL: https://issues.apache.org/jira/browse/IGNITE-5580
Project: Ignite
Issue Type: Improvement
Components: general
Affects Versions: 1.7
Reporter: Alexey Goncharuk
Fix For: 2.1
When a node fails, we do not print out any information about the root cause of this failure.
This makes it extremely hard to investigate the failure causes - I need to find a previous
node for the failed node and check the logs on the previous node.
I suggest that we add extensive information about the reason of the node failure and the sequence
of events that led to this, e.g.:
[time] [NODE] Sending a message to next node - failed _because_ - write timeout, read timeout,
...?
[time] [NODE] Connection check - failed - why? Connection refused, handshake timed out, ...?
...
[time] [NODE] Decided to drop the node because of the sequence above
Maybe we do not need to print out this information always, but we do need this when troubleshooting
logger is enabled.
Also, DiscoverySpi should collect a set of latest important events and dump these events in
case of local node segmentation. This will allow users to match the events in the cluster
and events on local node and get to the bottom of the failure.
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