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https://issues.apache.org/jira/browse/IGNITE-13705?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vladimir Steshin updated IGNITE-13705:
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Description:
The discovery ducktape test [1] has detected unexpected failure of another node.
Scenario:
The nodes have relative places in the ring: N and N+1. Node N detects failure
of node N+1. Node N tries to connect to node N+2. Node N+2 checks backward
connection to node N+1.
Problem:
Node N can fail too.
Cause:
The timeout on node N to recover connection to node N+2 appears shorter than
timeout on node N+2 to check connection to N+1.
Fix:
Introduced a fundamental timeout value to check/recover connection based on
current configuration. The mentioned timeouts have been turned relative. The
timeout of backward connection check is now generally shorter than the timeout
to recover connection.
[1]
https://github.com/apache/ignite/blob/ignite-ducktape/modules/ducktests/tests/ignitetest/tests/discovery_test.py
was:
The discovery ducktape test [1] has detected failure of third node in the
middle of 2 simulateously failed nodes.
Scenario:
Two nodes fail at the same time. The nodes have relative places in the ring:
N-1 and N+1.
Node N detects failure of node N+1. Node N tries to connect to node N+2. Node
N+2 checks backward connection to node N+1.
Problem:
Node N can fail too.
Cause:
The timeout on node N to recover connection to node N+2 appears shorter than
timeout on node N+2 to check connection to N+1.
Fix:
Introduced a fundamental timeout value to check/recover connection based on
current configuration. Not a constant. Mentioned above timeouts have been made
relative. The timeout of backward connection check is now generally shorter
than the timeout to recover connection.
[1]
https://github.com/apache/ignite/blob/ignite-ducktape/modules/ducktests/tests/ignitetest/tests/discovery_test.py
> Another node failes with failure of target node.
> ------------------------------------------------
>
> Key: IGNITE-13705
> URL: https://issues.apache.org/jira/browse/IGNITE-13705
> Project: Ignite
> Issue Type: Bug
> Reporter: Vladimir Steshin
> Assignee: Vladimir Steshin
> Priority: Major
> Time Spent: 50m
> Remaining Estimate: 0h
>
> The discovery ducktape test [1] has detected unexpected failure of another
> node.
> Scenario:
> The nodes have relative places in the ring: N and N+1. Node N detects failure
> of node N+1. Node N tries to connect to node N+2. Node N+2 checks backward
> connection to node N+1.
> Problem:
> Node N can fail too.
> Cause:
> The timeout on node N to recover connection to node N+2 appears shorter than
> timeout on node N+2 to check connection to N+1.
> Fix:
> Introduced a fundamental timeout value to check/recover connection based on
> current configuration. The mentioned timeouts have been turned relative. The
> timeout of backward connection check is now generally shorter than the
> timeout to recover connection.
> [1]
> https://github.com/apache/ignite/blob/ignite-ducktape/modules/ducktests/tests/ignitetest/tests/discovery_test.py
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