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https://issues.apache.org/jira/browse/TEZ-1343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14083173#comment-14083173
 ] 

Daniel Dai commented on TEZ-1343:
---------------------------------

Tried Pig local tez mode, see stack:
org.apache.hadoop.service.ServiceStateException: java.io.FileNotFoundException: 
/tmp/temp1006601151/.tez/application_1406934439610_0001/tez-dag.pb (No such 
file or directory)
        at 
org.apache.hadoop.service.ServiceStateException.convert(ServiceStateException.java:59)
        at 
org.apache.hadoop.service.AbstractService.start(AbstractService.java:204)
        at org.apache.tez.dag.app.DAGAppMaster$5.run(DAGAppMaster.java:1901)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:394)
        at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
        at 
org.apache.tez.dag.app.DAGAppMaster.initAndStartAppMaster(DAGAppMaster.java:1897)
        at org.apache.tez.client.LocalClient$1.run(LocalClient.java:264)
        at java.lang.Thread.run(Thread.java:695)
Caused by: java.io.FileNotFoundException: 
/tmp/temp1006601151/.tez/application_1406934439610_0001/tez-dag.pb (No such 
file or directory)
        at java.io.FileInputStream.open(Native Method)
        at java.io.FileInputStream.<init>(FileInputStream.java:120)
        at java.io.FileInputStream.<init>(FileInputStream.java:79)
        at org.apache.tez.dag.app.DAGAppMaster.startDAG(DAGAppMaster.java:1773)
        at 
org.apache.tez.dag.app.DAGAppMaster.serviceStart(DAGAppMaster.java:1556)
        at 
org.apache.hadoop.service.AbstractService.start(AbstractService.java:193)


> Bypass the Fetcher and read directly from the local filesystem if source 
> vertex ran on the same host
> ----------------------------------------------------------------------------------------------------
>
>                 Key: TEZ-1343
>                 URL: https://issues.apache.org/jira/browse/TEZ-1343
>             Project: Apache Tez
>          Issue Type: Task
>    Affects Versions: 0.4.1
>            Reporter: Prakash Ramachandran
>            Assignee: Prakash Ramachandran
>         Attachments: TEZ-1343.WIP.1.patch, TEZ-1343.WIP.2.patch
>
>
> In the case of the source and current vertex are on the same host bypass the 
> Fetcher and read it directly from the local filesystem



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