jchen21 commented on a change in pull request #5014:
URL: https://github.com/apache/geode/pull/5014#discussion_r419578480
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File path:
geode-core/src/main/java/org/apache/geode/internal/cache/GemFireCacheImpl.java
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@@ -1086,6 +1088,27 @@ public static GemFireCacheImpl getForPdx(String reason) {
clientMetadataService = clientMetadataServiceFactory.apply(this);
}
+ @Override
+ public void lockDiskStore(String diskStoreName) {
+ CountDownLatch countDownLatch =
+ diskStoreLatches.putIfAbsent(diskStoreName, new CountDownLatch(1));
+ if (countDownLatch != null) {
+ try {
+ countDownLatch.await();
Review comment:
It will `await()` on the old latch. More specifically, the first thread
will put a new `CountDownLatch` in the map. The other threads will `await()` on
the latch that the first thread put in the map.
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