Apache9 commented on code in PR #7117:
URL: https://github.com/apache/hbase/pull/7117#discussion_r2182990316
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hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncNonMetaRegionLocator.java:
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@@ -91,6 +95,9 @@ class AsyncNonMetaRegionLocator {
private final ConcurrentMap<TableName, TableCache> cache = new
ConcurrentHashMap<>();
+ // A chore service to invalidate table cache which table is not exist or
disabled.
+ private ChoreService metaCacheInvalidateChoreService;
Review Comment:
We have a timer in AsyncConnectionImpl, better reuse that thread to do this.
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hbase-client/src/main/java/org/apache/hadoop/hbase/client/AsyncNonMetaRegionLocator.java:
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@@ -618,4 +631,67 @@ int getNumberOfCachedRegionLocations(TableName tableName) {
return tableCache.regionLocationCache.getAll().stream()
.mapToInt(RegionLocations::numNonNullElements).sum();
}
+
+ private void spawnMetaCacheInvalidateChore(int metaCacheInvalidateInterval) {
+ if (metaCacheInvalidateChoreService == null) {
+ metaCacheInvalidateChoreService = new ChoreService("Meta Cache Chore
Service");
+ }
+ metaCacheInvalidateChoreService
+ .scheduleChore(getMetaCacheInvalidateChore(metaCacheInvalidateInterval));
+ }
+
+ private ScheduledChore getMetaCacheInvalidateChore(int
metaCacheInvalidateInterval) {
+ return new ScheduledChore("MetaCacheChore", new Stoppable() {
+ private volatile boolean isStopped = false;
+
+ @Override
+ public void stop(String why) {
+ isStopped = true;
+ }
+
+ @Override
+ public boolean isStopped() {
+ return isStopped;
+ }
+ }, metaCacheInvalidateInterval, metaCacheInvalidateInterval) {
+
+ @Override
+ protected void chore() {
+ invalidateTableCache();
+ }
+ };
+ }
+
+ private void invalidateTableCache() {
+ Set<TableName> cachedTables = cache.keySet();
+ if (!cachedTables.isEmpty()) {
+ boolean shouldInvalidateCache;
+ AsyncAdmin admin = conn.getAdmin();
+ for (TableName tableName : cachedTables) {
+ try {
+ shouldInvalidateCache =
+ FutureUtils.get(admin.isTableDisabled(tableName), 5,
TimeUnit.SECONDS);
Review Comment:
If you use timer to do the cleanup then you can not use blocking call here,
you need to add callback to the returned CompletableFuture to do the cleanup.
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