patsonluk commented on code in PR #909:
URL: https://github.com/apache/solr/pull/909#discussion_r911542761
##########
solr/core/src/test/org/apache/solr/cloud/overseer/ZkStateReaderTest.java:
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@@ -196,4 +209,251 @@ public void testWatchedCollectionCreation() throws
Exception {
server.shutdown();
}
}
+
+ public void testForciblyRefreshAllClusterState() throws Exception {
+ Path zkDir = createTempDir("testForciblyRefreshAllClusterState");
+
+ ZkTestServer server = new ZkTestServer(zkDir);
+
+ SolrZkClient zkClient = null;
+ ZkStateReader reader = null;
+
+ try {
+ server.run();
+
+ zkClient = new SolrZkClient(server.getZkAddress(),
OverseerTest.DEFAULT_CONNECTION_TIMEOUT);
+ ZkController.createClusterZkNodes(zkClient);
+
+ reader = new ZkStateReader(zkClient);
+ reader.createClusterStateWatchersAndUpdate();
+ reader.registerCore("c1"); // watching c1, so it should get non lazy
reference
+ zkClient.makePath(ZkStateReader.COLLECTIONS_ZKNODE + "/c1", true);
+
+ reader.forciblyRefreshAllClusterStateSlow();
+ // Initially there should be no c1 collection.
+ assertNull(reader.getClusterState().getCollectionRef("c1"));
+
+ ZkStateWriter writer = new ZkStateWriter(reader, new Stats());
Review Comment:
Nice suggestion! I'm on it now!
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