[
https://issues.apache.org/jira/browse/HIVE-23324?focusedWorklogId=462053&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-462053
]
ASF GitHub Bot logged work on HIVE-23324:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 22/Jul/20 13:07
Start Date: 22/Jul/20 13:07
Worklog Time Spent: 10m
Work Description: deniskuzZ commented on a change in pull request #1275:
URL: https://github.com/apache/hive/pull/1275#discussion_r458776747
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/Cleaner.java
##########
@@ -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:
You are submitting all tasks to the executor inside the loop at the end,
so if there will be an exception in main loop - there won't be any running
threads in executor.
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Issue Time Tracking
-------------------
Worklog Id: (was: 462053)
Time Spent: 7h 40m (was: 7.5h)
> Parallelise compaction directory cleaning process
> -------------------------------------------------
>
> Key: HIVE-23324
> URL: https://issues.apache.org/jira/browse/HIVE-23324
> Project: Hive
> Issue Type: Improvement
> Reporter: Marton Bod
> Assignee: Adesh Kumar Rao
> Priority: Major
> Labels: pull-request-available
> Time Spent: 7h 40m
> Remaining Estimate: 0h
>
> Initiator processes the various compaction candidates in parallel, so we
> could follow a similar approach in Cleaner where we currently clean the
> directories sequentially.
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