madrob commented on a change in pull request #1297: SOLR-14253 Replace various
sleep calls with ZK waits
URL: https://github.com/apache/lucene-solr/pull/1297#discussion_r389193738
##########
File path: solr/core/src/java/org/apache/solr/cloud/ZkController.java
##########
@@ -1684,58 +1685,39 @@ private void
doGetShardIdAndNodeNameProcess(CoreDescriptor cd) {
}
private void waitForCoreNodeName(CoreDescriptor descriptor) {
- int retryCount = 320;
- log.debug("look for our core node name");
- while (retryCount-- > 0) {
- final DocCollection docCollection = zkStateReader.getClusterState()
-
.getCollectionOrNull(descriptor.getCloudDescriptor().getCollectionName());
- if (docCollection != null && docCollection.getSlicesMap() != null) {
- final Map<String, Slice> slicesMap = docCollection.getSlicesMap();
- for (Slice slice : slicesMap.values()) {
- for (Replica replica : slice.getReplicas()) {
- // TODO: for really large clusters, we could 'index' on this
-
- String nodeName = replica.getStr(ZkStateReader.NODE_NAME_PROP);
- String core = replica.getStr(ZkStateReader.CORE_NAME_PROP);
-
- String msgNodeName = getNodeName();
- String msgCore = descriptor.getName();
-
- if (msgNodeName.equals(nodeName) && core.equals(msgCore)) {
- descriptor.getCloudDescriptor()
- .setCoreNodeName(replica.getName());
- getCoreContainer().getCoresLocator().persist(getCoreContainer(),
descriptor);
- return;
- }
- }
+ log.debug("waitForCoreNodeName >>> look for our core node name");
+ try {
+ zkStateReader.waitForState(descriptor.getCollectionName(), 320,
TimeUnit.SECONDS, c -> {
Review comment:
In general, I think it's good to have knobs, but there's definitely the
possibility of having too many things available to configure and overwhelming
operators. Can you describe what conditions would lead to wanting to tweak this?
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