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ASF GitHub Bot logged work on HIVE-26242: ----------------------------------------- Author: ASF GitHub Bot Created on: 27/Jun/22 18:33 Start Date: 27/Jun/22 18:33 Worklog Time Spent: 10m Work Description: veghlaci05 commented on PR #3303: URL: https://github.com/apache/hive/pull/3303#issuecomment-1167729672 > I think we should do something like this: > > ``` > ExecutorService executorService = CompactorUtil.createExecutorWithThreadFactory(numberOfWorkers, "CompactionHeartbeat-executor-thread-%d"); > > Future<?> submittedTask = heartbeatExecutor.scheduleAtFixedRate(() -> executorService.execute(heartbeater)); > tasks.put(txnId, new TaskWrapper(heartbeater, submittedTask)); > ``` What is the benefit of this construct? Issue Time Tracking ------------------- Worklog Id: (was: 785205) Time Spent: 8h 20m (was: 8h 10m) > Compaction heartbeater improvements > ----------------------------------- > > Key: HIVE-26242 > URL: https://issues.apache.org/jira/browse/HIVE-26242 > Project: Hive > Issue Type: Improvement > Reporter: László Végh > Assignee: László Végh > Priority: Major > Labels: pull-request-available > Time Spent: 8h 20m > Remaining Estimate: 0h > > The Compaction heartbeater should be improved the following ways: > * The metastore clients should be reused between heartbeats and closed only > at the end, when the transaction ends > * Instead of having a dedicated heartbeater thread for each Compaction > transaction, there should be shared a heartbeater executor where the > heartbeat tasks can be scheduled/submitted. -- This message was sent by Atlassian Jira (v8.20.7#820007)