Ensuring that the ShrinkAction does not hang if total shards per node is too low #76732
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masseyke
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:Data Management/ILM+SLM
elasticmachine
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Team:Data Management
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Pinging @elastic/es-core-features (Team:Core/Features) |
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This is related to this PR: #76134 |
dakrone
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Aug 19, 2021
| @@ -95,7 +96,8 @@ public void performAction(IndexMetadata indexMetadata, ClusterState clusterState | |||
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| if (nodeId.isPresent()) { | |||
| Settings settings = Settings.builder() | |||
| .put(IndexMetadata.INDEX_ROUTING_REQUIRE_GROUP_SETTING.getKey() + "_id", nodeId.get()).build(); | |||
| .put(IndexMetadata.INDEX_ROUTING_REQUIRE_GROUP_SETTING.getKey() + "_id", nodeId.get()) | |||
| .put(ShardsLimitAllocationDecider.INDEX_TOTAL_SHARDS_PER_NODE_SETTING.getKey(), -1).build(); | |||
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I think rather than setting this explicitly to -1, we might be better if we did:
Suggested change
| .put(ShardsLimitAllocationDecider.INDEX_TOTAL_SHARDS_PER_NODE_SETTING.getKey(), -1).build(); | |
| .putNull(ShardsLimitAllocationDecider.INDEX_TOTAL_SHARDS_PER_NODE_SETTING.getKey()).build(); |
Since the default value is -1 (rather than setting it to that explicitly)
masseyke
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Aug 20, 2021
… is too low (elastic#76732) We added configuration to AllocateAction to set the total shards per node property on the index. This makes it possible that a user could set this to a value lower than the total number of shards in the index that is about to be shrunk, meaning that all of the shards could not be moved to a single node in the ShrinkAction. This commit unsets the total shards per node property so that we fall back to the default value (-1, unlimited) in the ShrinkAction to avoid this. Relates to elastic#44070
masseyke
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Aug 20, 2021
… is too low (#76732) (#76780) This is a backport of #76732. We added configuration to AllocateAction to set the total shards per node property on the index. This makes it possible that a user could set this to a value lower than the total number of shards in the index that is about to be shrunk, meaning that all of the shards could not be moved to a single node in the ShrinkAction. This commit unsets the total shards per node property so that we fall back to the default value (-1, unlimited) in the ShrinkAction to avoid this. Relates to #44070
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We added configuration to AllocateAction to set the total shards per node property on the index. This makes it possible that a user could set this to a value lower than the total number of shards in the index that is about to be shrunk, meaning that all of the shards could not be moved to a single node in the ShrinkAction. This commit sets the total shards per node property to -1 (unlimited) in the ShrinkAction to avoid this.
Relates to #44070