[teiid-issues] [JBoss JIRA] (TEIID-5121) Streaming lob exception with shared tuple source

[Steven Hawkins (JIRA)]

     [ https://issues.jboss.org/browse/TEIID-5121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steven Hawkins updated TEIID-5121:
----------------------------------
      Description: 
If a source returns streaming lobs and a shared tuple source is used, then a streaming exception can occur when the tuple source is reused.

For example in TEIID-5093 a union of two identical branches of the same texttable will result in the exception: 

TEIID60019 Streaming result has already been read once.

This issue was separated from the S3 issue as it affects any streaming lob, which would typically be from the ws translator/resource adapter.





  was:
Querry : 
{code:java}
SELECT IntKey, StringKey, lookup('BQT1.SmallB', 'DoubleNum', 'IntKey', IntKey) AS DoubleNum  FROM BQT1.SmallA UNION SELECT IntKey, lookup('BQT1.SmallA', 'StringKey', 'IntKey', IntKey) AS StringKey, DoubleNum FROM BQT1.SmallA
{code}
returns TeiidSQLException for csv and xml files from amazon s3.

Stacktrace:

{code:java}
 WARN  [org.teiid.PROCESSOR] (Worker2_QueryProcessorQueue41) TEIID30020 Processing exception for request 8O9K6VJIjd9y.7 'TEIID30180 java.sql.SQLException: java.sql.SQLException: TEIID60019 Streaming result has already been read once.  Ensure that only one read operation needs to be performed, for example XMLPARSE without the WELLFORMED operation must read the entire stream to validate its contents.  Or you may choose to use a non-streaming result.   '. Originally TeiidProcessingException BinaryWSProcedureExecution.java:78. Enable more detailed logging to see the entire stacktrace.
{code}


Teiid command log for querry:

{code:java}
15:11:34,160 INFO  [org.teiid.COMMAND_LOG] (New I/O worker #2) 8O9K6VJIjd9y 	START USER COMMAND:	startTime=2017-10-09 15:11:34.16	requestID=8O9K6VJIjd9y.7	txID=null	sessionID=8O9K6VJIjd9y	applicationName=JDBC	principal=user at teiid-security	vdbName=csv	vdbVersion=1	sql=SELECT IntKey, StringKey, lookup('BQT1.SmallB', 'DoubleNum', 'IntKey', IntKey) AS DoubleNum  FROM BQT1.SmallA UNION SELECT IntKey, lookup('BQT1.SmallA', 'StringKey', 'IntKey', IntKey) AS StringKey, DoubleNum FROM BQT1.SmallA
15:11:34,192 DEBUG [org.teiid.COMMAND_LOG] (Worker0_QueryProcessorQueue40) 8O9K6VJIjd9y 	START DATA SRC COMMAND:	startTime=2017-10-09 15:11:34.192	requestID=8O9K6VJIjd9y.7	sourceCommandID=6	executionID=2	txID=null	modelName=sourceModel	translatorName=user-s3	sessionID=8O9K6VJIjd9y	principal=user at teiid-security	sql=EXEC sourceModel.getTextFile('csv/smallaCsv.csv')
15:11:34,856 DEBUG [org.teiid.COMMAND_LOG] (Worker2_QueryProcessorQueue41) 8O9K6VJIjd9y 	END SRC COMMAND:	endTime=2017-10-09 15:11:34.856	requestID=8O9K6VJIjd9y.7	sourceCommandID=6	executionID=2	txID=null	modelName=sourceModel	translatorName=user-s3	sessionID=8O9K6VJIjd9y	principal=user at teiid-security	finalRowCount=1	cpuTime(ns)=34673443
15:11:34,862 INFO  [org.teiid.COMMAND_LOG] (Worker2_QueryProcessorQueue41) 8O9K6VJIjd9y 	ERROR USER COMMAND:	endTime=2017-10-09 15:11:34.862	requestID=8O9K6VJIjd9y.7	txID=null	sessionID=8O9K6VJIjd9y	principal=user at teiid-security	vdbName=csv	vdbVersion=1	finalRowCount=null
15:11:34,876 INFO  [org.teiid.COMMAND_LOG] (Worker2_QueryProcessorQueue41) 8O9K6VJIjd9y 	END USER COMMAND:	endTime=2017-10-09 15:11:34.876	requestID=8O9K6VJIjd9y.7	txID=null	sessionID=8O9K6VJIjd9y	principal=user at teiid-security	vdbName=csv	vdbVersion=1	finalRowCount=0
{code}






    Fix Version/s: 10.0
         Priority: Major  (was: Blocker)


> Streaming lob exception with shared tuple source
> ------------------------------------------------
>
>                 Key: TEIID-5121
>                 URL: https://issues.jboss.org/browse/TEIID-5121
>             Project: Teiid
>          Issue Type: Bug
>          Components: Misc. Connectors
>    Affects Versions: 8.12.x-6.4
>            Reporter: Mario Majernik
>            Assignee: Steven Hawkins
>             Fix For: 10.0
>
>
> If a source returns streaming lobs and a shared tuple source is used, then a streaming exception can occur when the tuple source is reused.
> For example in TEIID-5093 a union of two identical branches of the same texttable will result in the exception: 
> TEIID60019 Streaming result has already been read once.
> This issue was separated from the S3 issue as it affects any streaming lob, which would typically be from the ws translator/resource adapter.



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