Fail weight update when decommission ongoing and fail decommission when attribute not weighed away #4839
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Signed-off-by: Rishab Nahata <[email protected]>
Signed-off-by: Rishab Nahata <[email protected]>
Signed-off-by: Rishab Nahata <[email protected]>
imRishN
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Signed-off-by: Rishab Nahata <[email protected]>
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Bukhtawar
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Oct 19, 2022
| WeightedRouting weightedRouting = weightedRoutingMetadata.getWeightedRouting(); | ||
| if (weightedRouting.attributeName().equals(decommissionAttribute.attributeName())) { | ||
| Double attributeValueWeight = weightedRouting.weights().get(decommissionAttribute.attributeValue()); | ||
| if (attributeValueWeight == null || attributeValueWeight != 0.0) { |
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is this value float or double, should we make specific comparisons. For instance Double.valueOf(0.0)
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It is Double. using .equals()
Bukhtawar
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Oct 19, 2022
server/src/main/java/org/opensearch/cluster/decommission/DecommissionService.java
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Bukhtawar
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server/src/main/java/org/opensearch/cluster/routing/WeightedRoutingService.java
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Signed-off-by: Rishab Nahata <[email protected]>
Fix spotless check Signed-off-by: Rishab Nahata <[email protected]>
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Signed-off-by: Rishab Nahata <[email protected]>
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Codecov Report
@@ Coverage Diff @@
## main #4839 +/- ##
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- Coverage 70.73% 70.70% -0.03%
- Complexity 57884 57894 +10
============================================
Files 4689 4689
Lines 277296 277314 +18
Branches 40363 40367 +4
============================================
- Hits 196137 196075 -62
- Misses 64873 64968 +95
+ Partials 16286 16271 -15
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sachinpkale
reviewed
Oct 20, 2022
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| public void ensureNoOngoingDecommissionAction(ClusterState state) { | ||
| DecommissionAttributeMetadata decommissionAttributeMetadata = state.metadata().decommissionAttributeMetadata(); | ||
| if (decommissionAttributeMetadata != null && decommissionAttributeMetadata.status().equals(DecommissionStatus.FAILED) == false) { |
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What if status is SUCCESSFUL?
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Only when Decommission has failed, we can allow the weight update can go through. Not for any other status
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Isn't SUCCESSFUL a final state? The error message of this if condition says: a decommission action is ongoing with status...
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A succesful decommission state means the transport execution has completed. The nodes are decommissioned in this state (not able to start pre voting or join). Hence DecommissionAction ongoing means a zone is decommissioned and the cluster rejects pings from decommissioned node
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Build is failing, please fix the build. |
Bukhtawar
reviewed
Oct 20, 2022
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| public void ensureNoOngoingDecommissionAction(ClusterState state) { | ||
| DecommissionAttributeMetadata decommissionAttributeMetadata = state.metadata().decommissionAttributeMetadata(); | ||
| if (decommissionAttributeMetadata != null && decommissionAttributeMetadata.status().equals(DecommissionStatus.FAILED) == false) { |
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If decommission status is FAILED can certain nodes be out of service or decommissioned while others not as in partially failed?
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No, if the decommission is FAILED, joins or prevoting is not blocked on those nodes and hence if some nodes are out of service (which can happen), the weights request can go through
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But then the zone isn't fully equipped to take traffic right like 90% nodes are out of service and we place weights 10:1:1 when 10 is for the zone only operating at 10% capacity?
Bukhtawar
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Signed-off-by: Rishab Nahata <[email protected]>
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sachinpkale
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…en attribute not weighed away (opensearch-project#4839) * Add checks for decommission before setting weights Signed-off-by: Rishab Nahata <[email protected]>
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* Fail weight update when decommission ongoing and fail decommission when attribute not weighed away (#4839) * Add changes for graceful node decommission (#4586) * Add delay timeout for decommission request (#4931) * Integ Tests for Awareness Attribute Decommissioning (#4715) Signed-off-by: Rishab Nahata <[email protected]> Signed-off-by: pranikum <[email protected]>
imRishN
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* Fail weight update when decommission ongoing and fail decommission when attribute not weighed away (opensearch-project#4839) * Add changes for graceful node decommission (opensearch-project#4586) * Add delay timeout for decommission request (opensearch-project#4931) * Integ Tests for Awareness Attribute Decommissioning (opensearch-project#4715) Signed-off-by: Rishab Nahata <[email protected]> Signed-off-by: pranikum <[email protected]>
ashking94
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…en attribute not weighed away (opensearch-project#4839) * Add checks for decommission before setting weights Signed-off-by: Rishab Nahata <[email protected]>
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Description
Issues Resolved
#4838
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