[teiid-issues] [JBoss JIRA] (TEIID-5643) When querying a larger dataset, teiid answers with 504 Gateway Time-out and throws exception
Steven Hawkins (Jira)
issues at jboss.org
Mon Mar 4 16:11:00 EST 2019
[ https://issues.jboss.org/browse/TEIID-5643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13703555#comment-13703555 ]
Steven Hawkins commented on TEIID-5643:
---------------------------------------
> I hope the result set was just cut for display purposes.
More than likely it is adding a top/limit and only showing the first 100 or so rows. Knowing now that the query completes normally it may not matter to further try to reproduce with using JDBC as it's likely to succeed.
> Currently I proceed with development efforts based on a dataset of just 100 rows. I hope I find a solution on this soon Might there be some other issues involved when I run teiid in a docker container? By default in Docker there are no resource constraints set, hence at least this should be fine. Is there some way to get more usable information out of the Wildfly Server on what is happening there?
Starting with more detailed Teiid logging would probably be the first step (see below).
> So if I understood your answer correct, this means the query from Teiid to the mysql database was correctly finished ? Than this would mean that Teiid messes up something internally
Probably not core Teiid, but something to do with olingo or some environmental factor.
> not sure what you mean, but I did not add anything extra regarding tracing, just the DEBUG flag in the standalone-teiid.xml
That is only the command log category/context. You can get more information from the other contexts, such as:
<logger category="org.teiid">
<level name="DEBUG"/>
</logger>
> END USER COMMAND : I am not sure what you mean with it
That is the start of a log entry shown above that denotes when the engine is done processing the user query, which in this case the your odata query.
> When querying a larger dataset, teiid answers with 504 Gateway Time-out and throws exception
> --------------------------------------------------------------------------------------------
>
> Key: TEIID-5643
> URL: https://issues.jboss.org/browse/TEIID-5643
> Project: Teiid
> Issue Type: Bug
> Affects Versions: 11.2.1
> Reporter: Christoph John
> Assignee: Steven Hawkins
> Priority: Major
> Attachments: Heap Dump analysis tool.pdf
>
>
> Please note, I am using Teiid 11.2.0 and not 11.2.1 as specified above in this ticket. I was not able to select a version 11.2.0.
> The issue: I tried to query a table with a larger amount of records (about 600.000 records in the table). Teiid responds with
> 504 Gateway Time-out. The server didn't respond in time.
> If Teiid tries to respond with 600.000 entries to such a request, it is reasonable that it runs out of memory or other weird things happen. However, I would expect that in such a case Teiid just answers with a fixed amount of records, say for example 1000, and provides a kind of curser to enable subsequent requests to retrieve more data.
> I am currently trying to find a workaround for the issue, as the issue blocks my work. Is there maybe a kind of configuration option that I have to set explicitly for such a kind of behavior I previously sketched?
> Further note: When I send such a kind of select * request on the table to Teiid, I am also not able for a certain time interval, about a minute, to get a responds to different queries which select a single element on the mentioned table. Such a request then also results in a 504 Gateway Time-out.
> Attached error log:
> 2019-02-01 22:33:36,126 WARN [org.jboss.jca.core.connectionmanager.pool.strategy.OnePool] (Worker2_QueryProcessorQueue5) eayVFuq9y7OY IJ000407: No lazy enlistment available for my_nutri_diary
> 2019-02-01 22:33:36,135 INFO [org.teiid.CONNECTOR] (Worker2_QueryProcessorQueue5) eayVFuq9y7OY MySQLExecutionFactory Commit=true;DatabaseProductName=MySQL;DatabaseProductVersion=8.0.13;DriverMajorVersion=8;DriverMajorVersion=0;DriverName=MySQL Connector/J;DriverVersion=mysql-connector-java-8.0.13 (Revision: 66459e9d39c8fd09767992bc592acd2053279be6);IsolationLevel=2
> 2019-02-01 22:36:56,959 WARN [org.teiid.CONNECTOR] (Worker2_QueryProcessorQueue5) eayVFuq9y7OY Connector worker process failed for atomic-request=eayVFuq9y7OY.0.0.0: org.teiid.translator.jdbc.JDBCExecutionException: 0 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: SELECT g_0.`idCode` AS c_0, g_0.`lc` AS c_1, g_0.`product_name` AS c_2, g_0.`origins` AS c_3, g_0.`brands` AS c_4, g_0.`quantity` AS c_5, g_0.`nova_group` AS c_6, g_0.`nutrition_grade_fr` AS c_7, g_0.`ingredients_text_with_allergens` AS c_8, g_0.`energy_100g` AS c_9, g_0.`carbohydrates_100g` AS c_10, g_0.`sugars_100g` AS c_11, g_0.`proteins_100g` AS c_12, g_0.`fat_100g` AS c_13, g_0.`saturated_fat_100g` AS c_14, g_0.`saturated_fat_modifier` AS c_15, g_0.`salt_100g` AS c_16, g_0.`sodium_100g` AS c_17 FROM `FDBProducts` AS g_0 ORDER BY c_0]
> at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:127)
> at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:393)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:229)
> at com.sun.proxy.$Proxy51.execute(Unknown Source)
> at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:302)
> at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:108)
> at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:104)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:61)
> at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:278)
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:115)
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:206)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: java.sql.SQLException: Java heap space
> at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129)
> at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)
> at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
> at com.mysql.cj.jdbc.ClientPreparedStatement.executeInternal(ClientPreparedStatement.java:974)
> at com.mysql.cj.jdbc.ClientPreparedStatement.executeQuery(ClientPreparedStatement.java:1024)
> at org.jboss.jca.adapters.jdbc.WrappedPreparedStatement.executeQuery(WrappedPreparedStatement.java:504)
> at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:119)
> ... 18 more
> 2019-02-01 22:36:56,977 WARN [org.teiid.PROCESSOR] (default task-4) eayVFuq9y7OY TEIID30020 Processing exception for request eayVFuq9y7OY.0 'TEIID30504 my_nutri_diary: 0 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: SELECT g_0.`idCode` AS c_0, g_0.`lc` AS c_1, g_0.`product_name` AS c_2, g_0.`origins` AS c_3, g_0.`brands` AS c_4, g_0.`quantity` AS c_5, g_0.`nova_group` AS c_6, g_0.`nutrition_grade_fr` AS c_7, g_0.`ingredients_text_with_allergens` AS c_8, g_0.`energy_100g` AS c_9, g_0.`carbohydrates_100g` AS c_10, g_0.`sugars_100g` AS c_11, g_0.`proteins_100g` AS c_12, g_0.`fat_100g` AS c_13, g_0.`saturated_fat_100g` AS c_14, g_0.`saturated_fat_modifier` AS c_15, g_0.`salt_100g` AS c_16, g_0.`sodium_100g` AS c_17 FROM `FDBProducts` AS g_0 ORDER BY c_0]'. Originally TeiidProcessingException 'Java heap space' SQLError.java:129. Enable more detailed logging to see the entire stacktrace.
> 2019-02-01 22:36:56,987 WARN [org.teiid.PROCESSOR] (default task-4) TEIID16053 Unable to process odata request due to: TEIID30504 my_nutri_diary: 0 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: SELECT g_0.`idCode` AS c_0, g_0.`lc` AS c_1, g_0.`product_name` AS c_2, g_0.`origins` AS c_3, g_0.`brands` AS c_4, g_0.`quantity` AS c_5, g_0.`nova_group` AS c_6, g_0.`nutrition_grade_fr` AS c_7, g_0.`ingredients_text_with_allergens` AS c_8, g_0.`energy_100g` AS c_9, g_0.`carbohydrates_100g` AS c_10, g_0.`sugars_100g` AS c_11, g_0.`proteins_100g` AS c_12, g_0.`fat_100g` AS c_13, g_0.`saturated_fat_100g` AS c_14, g_0.`saturated_fat_modifier` AS c_15, g_0.`salt_100g` AS c_16, g_0.`sodium_100g` AS c_17 FROM `FDBProducts` AS g_0 ORDER BY c_0] Increase the log level to see the entire stack trace.
> 2019-02-01 22:36:57,213 WARN [org.teiid.CONNECTOR] (Worker2_QueryProcessorQueue6) NdaDihMR2Vlt Connector worker process failed for atomic-request=NdaDihMR2Vlt.0.0.1: org.teiid.translator.jdbc.JDBCExecutionException: 0 TEIID11008:TEIID11004 Error executing statement(s): [Prepared Values: [] SQL: SELECT g_0.`idCode` AS c_0, g_0.`lc` AS c_1, g_0.`product_name` AS c_2, g_0.`origins` AS c_3, g_0.`brands` AS c_4, g_0.`quantity` AS c_5, g_0.`nova_group` AS c_6, g_0.`nutrition_grade_fr` AS c_7, g_0.`ingredients_text_with_allergens` AS c_8, g_0.`energy_100g` AS c_9, g_0.`carbohydrates_100g` AS c_10, g_0.`sugars_100g` AS c_11, g_0.`proteins_100g` AS c_12, g_0.`fat_100g` AS c_13, g_0.`saturated_fat_100g` AS c_14, g_0.`saturated_fat_modifier` AS c_15, g_0.`salt_100g` AS c_16, g_0.`sodium_100g` AS c_17 FROM `FDBProducts` AS g_0 ORDER BY c_0]
> at org.teiid.translator.jdbc.JDBCQueryExecution.execute(JDBCQueryExecution.java:127)
> at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:393)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:229)
> at com.sun.proxy.$Proxy51.execute(Unknown Source)
> at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:302)
> at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:108)
> at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:104)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:61)
> at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:278)
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:115)
> at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:206)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
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