murblanc commented on a change in pull request #1528:
URL: https://github.com/apache/lucene-solr/pull/1528#discussion_r427655602
##########
File path: solr/core/src/java/org/apache/solr/cloud/ZkController.java
##########
@@ -491,6 +493,40 @@ public boolean isClosed() {
assert ObjectReleaseTracker.track(this);
}
+ /**
+ * <p>Verifies if /clusterstate.json exists in Zookeepeer, and if it does
and is not empty, refuses to start and outputs
+ * a helpful message regarding collection migration.</p>
+ *
+ * <p>If /clusterstate.json exists and is empty, it is removed.</p>
+ */
+ private void checkNoOldClusterstate(final SolrZkClient zkClient) throws
InterruptedException {
+ try {
+ if (!zkClient.exists(ZkStateReader.UNSUPPORTED_CLUSTER_STATE, true)) {
+ return;
+ }
+
+ final byte[] data =
zkClient.getData(ZkStateReader.UNSUPPORTED_CLUSTER_STATE, null, null, true);
+
+ if (data.length < 5) {
Review comment:
updated.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org
For additional commands, e-mail: issues-h...@lucene.apache.org
