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SOLR-17893: Use caching to remove Remote Proxy bottleneck #3614

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Merged
merged 1 commit into from
Sep 5, 2025
Merged

SOLR-17893: Use caching to remove Remote Proxy bottleneck #3614

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2 changes: 2 additions & 0 deletions solr/CHANGES.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -228,6 +228,8 @@ Improvements
---------------------
* SOLR-17860: DocBasedVersionConstraintsProcessorFactory now supports PULL replicas. (Houston Putman)

* SOLR-17893: Speed up Remote Proxy for high QPS, utilizing ClusterState caching. (Houston Putman)

Optimizations
---------------------
(No changes)
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4 changes: 2 additions & 2 deletions solr/core/src/java/org/apache/solr/servlet/HttpSolrCall.java
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Expand Up @@ -327,7 +327,7 @@ protected DocCollection resolveDocCollection(String collectionName) {
}
ZkStateReader zkStateReader = cores.getZkController().getZkStateReader();
Supplier<DocCollection> logic =
() -> zkStateReader.getClusterState().getCollectionOrNull(collectionName);
() -> zkStateReader.getClusterState().getCollectionOrNull(collectionName, true);

DocCollection docCollection = logic.get();
if (docCollection != null) {
Expand Down Expand Up @@ -930,7 +930,7 @@ private SolrCore checkProps(ZkNodeProps zkProps) {

protected String getRemoteCoreUrl(String collectionName) throws SolrException {
ClusterState clusterState = cores.getZkController().getClusterState();
final DocCollection docCollection = clusterState.getCollectionOrNull(collectionName);
final DocCollection docCollection = clusterState.getCollectionOrNull(collectionName, true);
if (docCollection == null) {
return null;
}
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1 change: 1 addition & 0 deletions solr/solrj-zookeeper/src/java/org/apache/solr/common/cloud/ZkStateReader.java
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Expand Up @@ -762,6 +762,7 @@ public synchronized DocCollection get(boolean allowCached) {
Stat freshStats = null;
try {
freshStats = zkClient.exists(DocCollection.getCollectionPath(collName), null, true);
lastUpdateTime = System.nanoTime();
} catch (Exception e) {
}
if (freshStats != null
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