psalagnac commented on code in PR #1945:
URL: https://github.com/apache/solr/pull/1945#discussion_r1340250228
##########
solr/solrj-zookeeper/src/java/org/apache/solr/common/cloud/ZkStateReader.java:
##########
@@ -1802,6 +1800,18 @@ public void waitForState(
throw new AlreadyClosedException();
}
+ // Check predicate against known clusterState before trying to add watchers
+ if (clusterState != null) {
+ Set<String> liveNodes = clusterState.getLiveNodes();
+ DocCollection docCollection =
clusterState.getCollectionOrNull(collection);
+ if (liveNodes != null && docCollection != null) {
+ if (predicate.matches(liveNodes, docCollection)) {
+ log.debug("Found {} directly in clusterState", predicate);
Review Comment:
Probably the `toString()` output of the predicate won't be relevant most of
the time. I'm not sure what is the usual practice in Solr for this.
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