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https://issues.apache.org/jira/browse/HIVE-1872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12976628#action_12976628
]
Bharath R commented on HIVE-1872:
----------------------------------
As per the "Alter" query , two DDL tasks will be created.
When the first task execution is failed, the "taskCleanup" is internally
stopping the VM.
{code}
if (running.size() != 0) {
taskCleanup();
}
public void taskCleanup()
{
// The currently existing Shutdown hooks will be automatically
called,
// killing the map-reduce processes.
// The non MR processes will be killed as well.
System.exit(9);
}
{code}
Here, the System.exit(9) is used to kill all the "map-reduce" and "non-MR"
process.
Instead of killing all the MR and non-MR process , we can kill only the current
running processes
The update code will be ,.
{code}
public void taskCleanup(Map<TaskResult, TaskRunner> running) {
// get all the remaining running process ,
Set < Entry < TaskResult, TaskRunner >> entrySet = running.entrySet
();
for(Entry <TaskResult, TaskRunner> entry : entrySet)
{
TaskRunner value = entry.getValue ();
// Interrupt.
value.interrupt ();
}
}
{code}
This will internally kills the task ( which need not required to be exeuted ).
> Hive process is exiting on executing ALTER query
> ------------------------------------------------
>
> Key: HIVE-1872
> URL: https://issues.apache.org/jira/browse/HIVE-1872
> Project: Hive
> Issue Type: Bug
> Components: CLI, Server Infrastructure
> Affects Versions: 0.6.0
> Environment: SUSE Linux Enterprise Server 10 SP2 (i586) - Kernel
> 2.6.16.60-0.21-smp (3)
> Hadoop 0.20.1
> Hive 0.6.0
> Reporter: Bharath R
>
> Hive process is exiting on executing the below queries in the same order as
> mentioned
> 1) CREATE TABLE SAMPLETABLE(IP STRING , showtime BIGINT ) partitioned by (ds
> string,ipz int) ROW FORMAT DELIMITED FIELDS TERMINATED BY '\040'
> 2) ALTER TABLE SAMPLETABLE add Partition(ds='sf') location
> '/user/hive/warehouse' Partition(ipz=100) location '/user/hive/warehouse'
> After the second query execution , the hive throws the below exception and
> exiting the process
> 10:09:03 ERROR exec.DDLTask: FAILED: Error in metadata: table is partitioned
> but partition spec is not specified or tab: {ipz=100}
> org.apache.hadoop.hive.ql.metadata.HiveException: table is partitioned but
> partition spec is not specified or tab: {ipz=100}
> at
> org.apache.hadoop.hive.ql.metadata.Table.isValidSpec(Table.java:341)
> at org.apache.hadoop.hive.ql.metadata.Hive.getPartition(Hive.java:902)
> at
> org.apache.hadoop.hive.ql.exec.DDLTask.addPartition(DDLTask.java:282)
> at org.apache.hadoop.hive.ql.exec.DDLTask.execute(DDLTask.java:191)
> at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:107)
> at
> org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:55)
> at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:633)
> at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:506)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:384)
> at
> org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.execute(HiveServer.java:114)
> at
> org.apache.hadoop.hive.service.ThriftHive$Processor$execute.process(ThriftHive.java:378)
> at
> org.apache.hadoop.hive.service.ThriftHive$Processor.process(ThriftHive.java:366)
> at
> org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:252)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:619)
> As the "alter" query is incorrect the exception was thrown, ideally it should
> be "ALTER TABLE SAMPLETABLE add Partition(ds='sf',ipz=100) location
> '/user/hive/warehouse'".
> It is not good to exit the HIVE process when the query is incorrect.
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