adesh-rao commented on a change in pull request #1275:
URL: https://github.com/apache/hive/pull/1275#discussion_r458705695
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/Cleaner.java
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@@ -89,23 +93,28 @@ public void run() {
handle =
txnHandler.getMutexAPI().acquireLock(TxnStore.MUTEX_KEY.Cleaner.name());
startedAt = System.currentTimeMillis();
long minOpenTxnId = txnHandler.findMinOpenTxnIdForCleaner();
+ List<CompletableFuture> cleanerList = new ArrayList<>();
for(CompactionInfo compactionInfo : txnHandler.findReadyToClean()) {
- clean(compactionInfo, minOpenTxnId);
+
cleanerList.add(CompletableFuture.runAsync(CompactorUtil.ThrowingRunnable.unchecked(()
->
+ clean(compactionInfo, minOpenTxnId)), cleanerExecutor));
}
+ CompletableFuture.allOf(cleanerList.toArray(new
CompletableFuture[0])).join();
} catch (Throwable t) {
LOG.error("Caught an exception in the main loop of compactor cleaner,
" +
- StringUtils.stringifyException(t));
- }
- finally {
+ StringUtils.stringifyException(t));
+ if (cleanerExecutor != null) {
Review comment:
This is to handle the case when threads in executors are lost due to
exception.
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