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Catch and handle disconnect exceptions in search #115836

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original-brownbear
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@original-brownbear original-brownbear commented Oct 29, 2024

Getting a connection can throw an exception for a disconnected node. We failed to handle these in the adjusted spots, leading to a phase failure (and possible memory leaks for outstanding operations) instead of correctly recording a per-shard failure.

Note: this isn't as much change as it looks. Just putting the listener into a variable (or in one case its failure handling into a method) and then try-catch around the connection getting, that's all :)

Getting a connection can throw an exception for a disconnected node.
We failed to handle these in the adjusted spots, leading to a phase failure
(and possible memory leaks for outstanding operations) instead of correctly
recording a per-shard failure.
@elasticsearchmachine elasticsearchmachine added the Team:Search Foundations Meta label for the Search Foundations team in Elasticsearch label Oct 29, 2024
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Pinging @elastic/es-search-foundations (Team:Search Foundations)

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Hi @original-brownbear, I've created a changelog YAML for you.

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LGTM! 👍

@original-brownbear original-brownbear added the auto-backport Automatically create backport pull requests when merged label Oct 29, 2024
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Thanks Matteo!

@original-brownbear original-brownbear merged commit 78a531b into elastic:main Oct 29, 2024
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@original-brownbear original-brownbear deleted the catch-connection-exception branch October 29, 2024 13:11
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💔 Backport failed

You can use sqren/backport to manually backport by running backport --upstream elastic/elasticsearch --pr 115836

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Part of #115722

salvatore-campagna pushed a commit to salvatore-campagna/elasticsearch that referenced this pull request Oct 29, 2024
Getting a connection can throw an exception for a disconnected node.
We failed to handle these in the adjusted spots, leading to a phase failure
(and possible memory leaks for outstanding operations) instead of correctly
recording a per-shard failure.
jfreden pushed a commit to jfreden/elasticsearch that referenced this pull request Nov 4, 2024
Getting a connection can throw an exception for a disconnected node.
We failed to handle these in the adjusted spots, leading to a phase failure
(and possible memory leaks for outstanding operations) instead of correctly
recording a per-shard failure.
original-brownbear added a commit to original-brownbear/elasticsearch that referenced this pull request Nov 22, 2024
Getting a connection can throw an exception for a disconnected node.
We failed to handle these in the adjusted spots, leading to a phase failure
(and possible memory leaks for outstanding operations) instead of correctly
recording a per-shard failure.
elasticsearchmachine pushed a commit that referenced this pull request Nov 22, 2024
Getting a connection can throw an exception for a disconnected node.
We failed to handle these in the adjusted spots, leading to a phase failure
(and possible memory leaks for outstanding operations) instead of correctly
recording a per-shard failure.
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3 participants