Make PeerFinder log messages happier #83222
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Since elastic#73128 a sufficiently old `PeerFinder` will report all exceptions encountered during discovery to help diagnose cluster formation problems. We throw exceptions on genuine connection failures, but we also throw exceptions if the discovered node is the local node or is master-ineligible because these nodes are no use in discovery. We report all such exceptions as failures: [instance-0000000001] address [10.0.0.1:12345], node [null], requesting [false] connection failed: [instance-0000000002][10.0.0.1:12345] non-master-eligible node found Experience shows that users often have master-ineligible nodes in their discovery config so will see these messages frequently if the cluster cannot form, and may interpret the `connection failed` as the source of the problems even though they're benign. This commit adjusts the language in these messages to be more balanced, replacing `connection failed` with `discovery result`, including the phrase `successfully discovered` in the exception messsage, and giving advice on how to suppress the message.
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idegtiarenko
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* upstream/master: (100 commits) Avoid duplicate _type fields in v7 compat layer (elastic#83239) Bump bundled JDK to 17.0.2+8 (elastic#83243) [DOCS] Correct header syntax (elastic#83275) Add unit tests for indices.recovery.max_bytes_per_sec default values (elastic#83261) [DOCS] Add note that write indices are not replicated (elastic#82997) Add notes on indexing to kNN search guide (elastic#83188) Fix get-snapshot-api :docs:integTest (elastic#83273) FilterPathBasedFilter support match fieldname with dot (elastic#83178) Fix compilation issues in example-plugins (elastic#83258) fix ClusterStateListener javadoc (elastic#83246) Speed up Building Indices Lookup in Metadata (elastic#83241) Mute whole suite for elastic#82502 (elastic#83252) Make PeerFinder log messages happier (elastic#83222) [Docs] Add supported _terms_enum field types (elastic#83244) Add an aggregator for IPv4 and IPv6 subnets (elastic#82410) [CI] Fix 70_time_series/default sort yaml test failures (elastic#83217) Update test-failure Issue Template to include "needs:triage" label elastic#83226 Add an index->step cache to the PolicyStepsRegistry (elastic#82316) Improve support for joda datetime to java datetime transition in Painless (elastic#83099) Fix joda migration for week based methods in Painless (elastic#83232) ... # Conflicts: # x-pack/plugin/rollup/src/main/java/org/elasticsearch/xpack/rollup/v2/TransportRollupAction.java
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Since #73128 a sufficiently old
PeerFinderwill report all exceptionsencountered during discovery to help diagnose cluster formation
problems. We throw exceptions on genuine connection failures, but we
also throw exceptions if the discovered node is the local node or is
master-ineligible because these nodes are no use in discovery. We report
all such exceptions as failures:
Experience shows that users often have master-ineligible nodes in their
discovery config so will see these messages frequently if the cluster
cannot form, and may interpret the
connection failedas the source ofthe problems even though they're benign.
This commit adjusts the language in these messages to be more balanced,
replacing
connection failedwithdiscovery result, including thephrase
successfully discoveredin the exception messsage, and givingadvice on how to suppress the message.