shalinmangar commented on a change in pull request #2004:
URL: https://github.com/apache/lucene-solr/pull/2004#discussion_r508474749
##########
File path: solr/core/src/java/org/apache/solr/update/SolrCoreState.java
##########
@@ -86,7 +103,45 @@ public boolean decrefSolrCoreState(IndexWriterCloser
closer) {
}
return close;
}
-
+
+ /**
+ * Pauses all update requests to this core and waits (indefinitely) for all
in-flight
+ * update requests to finish
+ */
+ public void pauseUpdatesAndAwaitInflightRequests() {
+ if (pauseUpdateRequests.compareAndSet(false, true)) {
+ inflightUpdatesCounter.register();
+ inflightUpdatesCounter.arriveAndAwaitAdvance();
Review comment:
Good point. I have added a small timeout (2500 ms) with the same value
as the one used inside RecoveryStrategy for leader to finish in-flight
requests. I think this default should be enough but it can be changed using a
sysprop if needed.
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