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https://issues.apache.org/jira/browse/HIVE-24467?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
guojh updated HIVE-24467:
-------------------------
Description:
When hive execute jobs in parallel(control by “hive.exec.parallel” parameter),
ConditionalTasks remove the tasks that not selected in parallel, because there
are thread safety issues, some task may not remove from the dependent task
tree. This is a very serious bug, which causes some stage task not trigger
execution.
In our production cluster, the query run three conditional task in parallel,
after apply the patch of HIVE-21638, we found Stage-3 is miss and not submit to
runnable list for his parent Stage-31 is not done. But Stage-31 should removed
for it not selected.
{code:java}
// code placeholder
2020-12-01T22:18:13,764 INFO [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Starting task [Stage-38:MAPRED] in parallel
2020-12-01T22:19:01,766 INFO [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Starting task [Stage-25:CONDITIONAL] in parallel
2020-12-01T22:19:01,766 INFO [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Starting task [Stage-33:CONDITIONAL] in parallel
2020-12-01T22:19:01,766 INFO [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Starting task [Stage-37:CONDITIONAL] in parallel
2020-12-01T22:20:17,774 INFO [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Task:Stage-3:MAPRED Parent:Stage-31:MAPRED isDone:false
2020-12-01T22:20:17,774 ERROR [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Miss stage: Stage-3for queryid
hive_20201201221740_805852c0-60a7-4141-96e9-196f83b2705e
2020-12-01T22:20:17,774 ERROR [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Miss stage for queryid
hive_20201201221740_805852c0-60a7-4141-96e9-196f83b2705e : FAILED: Some Execute
Stage miss error
{code}
was:
When hive execute jobs in parallel(control by “hive.exec.parallel” parameter),
ConditionalTasks remove the tasks that not selected in parallel, because there
are thread safety issues, some task may not remove from the dependent task
tree. This is a very serious bug, which causes some stage task not trigger
execution.
In our production cluster, the query run three conditional task in parallel,
{code:java}
// code placeholder
2020-12-01T22:18:13,764 INFO [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Starting task [Stage-38:MAPRED] in parallel
2020-12-01T22:19:01,766 INFO [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Starting task [Stage-25:CONDITIONAL] in parallel
2020-12-01T22:19:01,766 INFO [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Starting task [Stage-33:CONDITIONAL] in parallel
2020-12-01T22:19:01,766 INFO [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Starting task [Stage-37:CONDITIONAL] in parallel
2020-12-01T22:20:17,774 INFO [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Task:Stage-3:MAPRED false false falseParent:Stage-2:MAPRED
status:trueParent:Stage-12:MAPRED status:trueParent:Stage-16:MAPRED
status:trueParent:Stage-20:MAPRED status:trueParent:Stage-31:MAPRED status:false
2020-12-01T22:20:17,774 ERROR [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Miss stage: Stage-3for queryid
hive_20201201221740_805852c0-60a7-4141-96e9-196f83b2705e
2020-12-01T22:20:17,774 ERROR [HiveServer2-Background-Pool: Thread-233156]
ql.Driver: Miss stage for queryid
hive_20201201221740_805852c0-60a7-4141-96e9-196f83b2705e : FAILED: Some Execute
Stage miss error
{code}
> ConditionalTask remove tasks that not selected exists thread safety problem
> ---------------------------------------------------------------------------
>
> Key: HIVE-24467
> URL: https://issues.apache.org/jira/browse/HIVE-24467
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 2.3.4
> Reporter: guojh
> Priority: Major
>
> When hive execute jobs in parallel(control by “hive.exec.parallel”
> parameter), ConditionalTasks remove the tasks that not selected in parallel,
> because there are thread safety issues, some task may not remove from the
> dependent task tree. This is a very serious bug, which causes some stage task
> not trigger execution.
> In our production cluster, the query run three conditional task in parallel,
> after apply the patch of HIVE-21638, we found Stage-3 is miss and not submit
> to runnable list for his parent Stage-31 is not done. But Stage-31 should
> removed for it not selected.
> {code:java}
> // code placeholder
> 2020-12-01T22:18:13,764 INFO [HiveServer2-Background-Pool: Thread-233156]
> ql.Driver: Starting task [Stage-38:MAPRED] in parallel
> 2020-12-01T22:19:01,766 INFO [HiveServer2-Background-Pool: Thread-233156]
> ql.Driver: Starting task [Stage-25:CONDITIONAL] in parallel
> 2020-12-01T22:19:01,766 INFO [HiveServer2-Background-Pool: Thread-233156]
> ql.Driver: Starting task [Stage-33:CONDITIONAL] in parallel
> 2020-12-01T22:19:01,766 INFO [HiveServer2-Background-Pool: Thread-233156]
> ql.Driver: Starting task [Stage-37:CONDITIONAL] in parallel
> 2020-12-01T22:20:17,774 INFO [HiveServer2-Background-Pool: Thread-233156]
> ql.Driver: Task:Stage-3:MAPRED Parent:Stage-31:MAPRED isDone:false
> 2020-12-01T22:20:17,774 ERROR [HiveServer2-Background-Pool: Thread-233156]
> ql.Driver: Miss stage: Stage-3for queryid
> hive_20201201221740_805852c0-60a7-4141-96e9-196f83b2705e
> 2020-12-01T22:20:17,774 ERROR [HiveServer2-Background-Pool: Thread-233156]
> ql.Driver: Miss stage for queryid
> hive_20201201221740_805852c0-60a7-4141-96e9-196f83b2705e : FAILED: Some
> Execute Stage miss error
> {code}
>
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