psalagnac commented on code in PR #3314:
URL: https://github.com/apache/solr/pull/3314#discussion_r2035840059
##########
solr/core/src/java/org/apache/solr/cloud/api/collections/DeleteShardCmd.java:
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@@ -238,4 +239,33 @@ private List<ZkNodeProps> getReplicasForSlice(String
collectionName, Slice slice
}
return sourceReplicas;
}
+
+ /**
+ * Best effort to delete Zookeeper nodes that stored other details than the
shard itself in
+ * cluster state. If we fail for any reason, we just log and the shard is
still deleted.
+ */
+ private void cleanupZooKeeperShardMetadata(String collection, String sliceId)
Review Comment:
Not sure what you mean by _everything_.
Unfortunately, we don't have a per shard root in Zookeeper. I wish we had,
it should simpler to remove all info specific to a shard, but the transition to
a different data layout will be ever complex.
The naive approach is to remove an hardcoded list of ZK node.
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