Stop responding to ping requests before master abdication #27329
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When a master node shuts down, it sends a leave request to the other nodes so that they can eagerly start a master election. Unfortunately, it was still possible for the master node that was shutting down to respond to ping requests, possibly influencing the election decision as it appeared to be an active master. This commit makes sure that UnicastZenPing does not respond to ping requests once it's been closed. ZenDiscovery.doStop() ensures to first close the pinging component before it triggers a master election.
ywelsch
added
:Distributed Coordination/Discovery-Plugins
ywelsch
requested review from
bleskes,
DaveCTurner and
jasontedor
and removed request for
bleskes
|
Yep, LGTM |
DaveCTurner
approved these changes
Nov 13, 2017
|
Thanks @jasontedor @DaveCTurner |
ywelsch
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Nov 13, 2017
When the current master node is shutting down, it sends a leave request to the other nodes so that they can eagerly start a fresh master election. Unfortunately, it was still possible for the master node that was shutting down to respond to ping requests, possibly influencing the election decision as it still appeared as an active master in the ping responses. This commit ensures that UnicastZenPing does not respond to ping requests once it's been closed. ZenDiscovery.doStop() continues to ensure that the pinging component is first closed before it triggers a master election. Closes #27328
ywelsch
added a commit
that referenced
this pull request
Nov 13, 2017
When the current master node is shutting down, it sends a leave request to the other nodes so that they can eagerly start a fresh master election. Unfortunately, it was still possible for the master node that was shutting down to respond to ping requests, possibly influencing the election decision as it still appeared as an active master in the ping responses. This commit ensures that UnicastZenPing does not respond to ping requests once it's been closed. ZenDiscovery.doStop() continues to ensure that the pinging component is first closed before it triggers a master election. Closes #27328
ywelsch
added a commit
that referenced
this pull request
Nov 13, 2017
When the current master node is shutting down, it sends a leave request to the other nodes so that they can eagerly start a fresh master election. Unfortunately, it was still possible for the master node that was shutting down to respond to ping requests, possibly influencing the election decision as it still appeared as an active master in the ping responses. This commit ensures that UnicastZenPing does not respond to ping requests once it's been closed. ZenDiscovery.doStop() continues to ensure that the pinging component is first closed before it triggers a master election. Closes #27328
martijnvg
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Nov 14, 2017
* es/master: (24 commits) Reduce synchronization on field data cache add json-processor support for non-map json types (#27335) Properly format IndexGraveyard deletion date as date (#27362) Upgrade AWS SDK Jackson Databind to 2.6.7.1 Stop responding to ping requests before master abdication (#27329) [Test] Fix POI version in packaging tests Allow affix settings to specify dependencies (#27161) Tests: Improve size regex in documentation test (#26879) reword comment Remove unnecessary logger creation for doc values field data [Geo] Decouple geojson parse logic from ShapeBuilders [DOCS] Fixed link to docker content Plugins: Add versionless alias to all security policy codebase properties (#26756) [Test] #27342 Fix SearchRequests#testValidate [DOCS] Move X-Pack-specific Docker content (#27333) Fail queries with scroll that explicitely set request_cache (#27342) [Test] Fix S3BlobStoreContainerTests.testNumberOfMultiparts() Set minimum_master_nodes to all nodes for REST tests (#27344) [Tests] Relax allowed delta in extended_stats aggregation (#27171) Remove S3 output stream (#27280) ...
martijnvg
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that referenced
this pull request
Nov 14, 2017
* 6.x: (27 commits) Reduce synchronization on field data cache [Test] #27342 Fix SearchRequests#testValidate Fail queries with scroll that explicitely set request_cache (#27342) add json-processor support for non-map json types (#27335) Upgrade AWS SDK Jackson Databind to 2.6.7.1 Properly format IndexGraveyard deletion date as date (#27362) Stop responding to ping requests before master abdication (#27329) [Test] Fix POI version in packaging tests Added release notes for 6.0.0 Update 6.0.0-beta1.asciidoc Allow affix settings to specify dependencies (#27161) Tests: Improve size regex in documentation test (#26879) reword comment Ensure external refreshes will also refresh internal searcher to minimize segment creation (#27253) Remove unnecessary logger creation for doc values field data [DOCS] Fixed link to docker content Plugins: Add versionless alias to all security policy codebase properties (#26756) [DOCS] Move X-Pack-specific Docker content (#27333) [Test] Fix S3BlobStoreContainerTests.testNumberOfMultiparts() Set minimum_master_nodes to all nodes for REST tests (#27344) ...
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When the current master node is shutting down, it sends a leave request to the other nodes so that they can eagerly start a fresh master election. Unfortunately, it was still possible for the master node that was shutting down to respond to ping requests, possibly influencing the election decision as it still appeared as an active master in the ping responses. This commit ensures that
UnicastZenPingdoes not respond to ping requests once it's been closed.ZenDiscovery.doStop()continues to ensure that the pinging component is first closed before it triggers a master election.Closes #27328