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https://issues.apache.org/jira/browse/HIVE-4075?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13587578#comment-13587578
]
Brock Noland commented on HIVE-4075:
------------------------------------
Hi,
This was observed when two queries hit a freshly started HiveServer2 instance
and as such TypeInfoFactory was uninitialized. In that case there were two
threads accessing those static maps, one got in stuck in an infinite loop with
the stack above.
Brock
> TypeInfoFactory is not thread safe and is access by multiple threads
> --------------------------------------------------------------------
>
> Key: HIVE-4075
> URL: https://issues.apache.org/jira/browse/HIVE-4075
> Project: Hive
> Issue Type: Sub-task
> Affects Versions: 0.10.0
> Reporter: Brock Noland
> Attachments: HIVE-4075-0.patch
>
>
> TypeInfoFactory is not thread safe and when accessed by multiple threads
> calls to any of the methods can modify hashmaps concurrently resulting in
> infinite loops.
> {noformat}
> "pool-1-thread-240" prio=10 tid=0x00002aabd8bf7000 nid=0x5f4a runnable
> [0x0000000044626000]
> java.lang.Thread.State: RUNNABLE
> at java.util.HashMap.get(HashMap.java:303)
> at
> org.apache.hadoop.hive.serde2.typeinfo.TypeInfoFactory.getStructTypeInfo(TypeInfoFactory.java:94)
>
> at
> org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.initSerdeParams(LazySimpleSerDe.java:237)
>
> at
> org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe.initialize(LazySimpleSerDe.java:182)
>
> at
> org.apache.hadoop.hive.metastore.MetaStoreUtils.getDeserializer(MetaStoreUtils.java:203)
>
> at
> org.apache.hadoop.hive.ql.metadata.Table.getDeserializerFromMetaStore(Table.java:260)
>
> at org.apache.hadoop.hive.ql.metadata.Table.checkValidity(Table.java:167)
> at org.apache.hadoop.hive.ql.metadata.Hive.getTable(Hive.java:930)
> at
> org.apache.hadoop.hive.ql.parse.DDLSemanticAnalyzer.analyzeDropTable(DDLSemanticAnalyzer.java:706)
>
> at
> org.apache.hadoop.hive.ql.parse.DDLSemanticAnalyzer.analyzeInternal(DDLSemanticAnalyzer.java:212)
>
> at
> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:246)
>
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:432)
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:337)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:906)
> - locked <0x00002aaac6e1c270> (a java.lang.Object)
> at
> org.apache.hive.service.cli.operation.SQLOperation.run(SQLOperation.java:94)
> {noformat}
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