Fix weighted routing metadata deserialization error during node restart

[anshu1106]

Signed-off-by: Anshu Agarwal anshukag@amazon.com

Description

Deserialization of weighted routing metadata is failing during node restart. This PR fixes the serialization error

Issues Resolved

#4690

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/3912/
• CommitID: 65afaba

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/3956/
• CommitID: 522dd10

[Bukhtawar]

Please lets add tests here

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/4091/
• CommitID: 9e22066

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/4096/
• CommitID: 9025518

[imRishN]

LGTM, thanks @anshu1106

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/4100/
• CommitID: 636afab

[anshu1106]

Gradle Check (Jenkins) Run Completed with:

• RESULT: UNSTABLE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/4100/
• CommitID: 636afab

Build is unstable due to unrelated test failures. Building again

[Test Result](https://build.ci.opensearch.org/job/gradle-check/4100/testReport/) (3 failures / +3)
[org.opensearch.action.admin.indices.create.CreateIndexIT.testCreateAndDeleteIndexConcurrently](https://build.ci.opensearch.org/job/gradle-check/4100/testReport/junit/org.opensearch.action.admin.indices.create/CreateIndexIT/testCreateAndDeleteIndexConcurrently/)
[org.opensearch.action.admin.indices.create.CreateIndexIT.classMethod](https://build.ci.opensearch.org/job/gradle-check/4100/testReport/junit/org.opensearch.action.admin.indices.create/CreateIndexIT/classMethod/)
[org.opensearch.indices.stats.IndexStatsIT.testFilterCacheStats](https://build.ci.opensearch.org/job/gradle-check/4100/testReport/junit/org.opensearch.indices.stats/IndexStatsIT/testFilterCacheStats/)

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/4104/
• CommitID: cc83386

[codecov-commenter]

Codecov Report

Merging #4691 (5b6d792) into main (7c03f89) will increase coverage by 0.02%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##               main    #4691      +/-   ##
============================================
+ Coverage     70.71%   70.73%   +0.02%     
- Complexity    57569    57599      +30     
============================================
  Files          4660     4660              
  Lines        276601   276600       -1     
  Branches      40307    40307              
============================================
+ Hits         195596   195660      +64     
+ Misses        64771    64696      -75     
- Partials      16234    16244      +10     

Impacted Files	Coverage Δ
...arch/cluster/metadata/WeightedRoutingMetadata.java	61.40% <ø> (+1.05%)	⬆️
...search/indices/recovery/RecoveryTargetHandler.java	0.00% <0.00%> (-100.00%)	⬇️
.../java/org/opensearch/node/NodeClosedException.java	50.00% <0.00%> (-50.00%)	⬇️
.../index/shard/IndexShardNotRecoveringException.java	50.00% <0.00%> (-50.00%)	⬇️
.../admin/cluster/reroute/ClusterRerouteResponse.java	60.00% <0.00%> (-40.00%)	⬇️
...luster/routing/allocation/RoutingExplanations.java	62.06% <0.00%> (-37.94%)	⬇️
...java/org/opensearch/threadpool/ThreadPoolInfo.java	56.25% <0.00%> (-37.50%)	⬇️
...ensearch/client/indices/DetailAnalyzeResponse.java	20.54% <0.00%> (-34.25%)	⬇️
...cluster/routing/allocation/RerouteExplanation.java	70.00% <0.00%> (-30.00%)	⬇️
...org/opensearch/test/engine/MockInternalEngine.java	56.52% <0.00%> (-26.09%)	⬇️
... and 488 more

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[nknize]

thx!

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/4469/
• CommitID: 5b6d792