Hi Ming,


Is your SPJ using type 2 jdbc or type 4 jdbc ?



Venkat



*From:* Liu, Ming (Ming) [mailto:[email protected]]
*Sent:* Tuesday, June 07, 2016 5:48 PM
*To:* [email protected]
*Subject:* 答复: when a query will be cancelled?



Hi, Hans,



In my test SPJ, there is only one statement. It is one big UPDATE query,
which will try to update 10M rows in a single thread, so it takes 1.5 hour.

And we will try to narrow down the issue further by debugging. Want to
check with community that if there are some special settings about 1 hour
timeout.



Ming



*发件人**:* Hans Zeller [mailto:[email protected] <[email protected]>]
*发送时间:* 2016年6月8日 0:42
*收件人:* [email protected]
*主题:* Re: when a query will be cancelled?



Hi Ming,



One thing to test would be where you get the timeout, whether it's in JDBC
done in the SPJ or in the communication between the master executor and the
UDR server. When you simulate it in your dev environment, do you also issue
a single JDBC call that takes more than an hour?



I have to admit I haven't tried it, but hopefully these instructions will
work for SPJs as well:
https://cwiki.apache.org/confluence/display/TRAFODION/Tutorial%3A+The+object-oriented+UDF+interface#Tutorial:Theobject-orientedUDFinterface-DebuggingUDFcode


Hans



On Tue, Jun 7, 2016 at 9:04 AM, Liu, Ming (Ming) <[email protected]> wrote:

Hi,



We have a SPJ that perform some insert/select operations against a big
table, and each time then the SPJ runs for 1 hour, the CALL statement will
return -8007 error code, said it is cancelled. What can be possible reasons
for a query to be cancelled?



>>CALL QUERY1SPJ();

*** ERROR[8007] The operation has been canceled.

*** ERROR[8811] Trying to close a statement that is either not in the open
state or has not reached EOF.

--- SQL operation failed with errors.



I have a dev environment, and simulate a long running SPJ (Not same as the
SPJ in real cluster as above), but I am not able to reproduce it. The test
SPJ runs 1 hour 50 mins and finish correctly. So this seems not a common
SPJ issue, but I am not sure.



Any suggestions to debug this issue will be very appreciated.



Thanks,

Ming

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