I'm trying to use 'DBCPConnectionPoolLookup' service in 'ExecuteGroovyScript' to dynamically query the required database based on 'database.name' parameter in the input flow file.
The processor is successfully able to get the corresponding 'DBCPConnectionPool' service for querying but I'm getting the an exception java.sql.SQLException: Cannot get a connection, pool error Timeout waiting for idle object. As opposed to if I directly use the 'DBCPConnectionPool' service without the 'Lookup' service without changing any configuration it works fine.
I access the service as follows:
def clientDb = CTL.SQLLookupService.getConnection(flowFile.getAttributes())
Then use the 'clientDb' object to query as:
clientDb.rows(timseriesSqlCountQuery).eachWithIndex { row, idx ->numRowsTimeSeries= row.c}
I have tried increasing the values of Max Wait Time and Max Total Connections to higher values in 'DBCPConnectionPool' service, it does not help.
Please find below detail links of images for code,error and configuration
Exception
Configuration of 'ExecuteGroovyScript'
Configuration of 'DBCPConnectionPool' service
Configuration of 'DBCPConnectionPoolLookup' service
Script Code
import org.apache.nifi.distributed.cache.client.Deserializer
import org.apache.nifi.distributed.cache.client.Serializer
import org.apache.nifi.distributed.cache.client.exception.DeserializationException
import org.apache.nifi.distributed.cache.client.exception.SerializationException
import groovy.sql.Sql
import java.time.*
try {
def flowFile = session.get()
def isBootstrap=flowFile."isBootstrap"
def timseriesSqlQuery='SELECT id FROM [dbo].[Points] where ([MappedToEquipment] = \'Mapped\' or PointStatus = \'Mapped\')'
def timseriesSqlCountQuery='SELECT count(id) as c FROM [dbo].[Points] where ([MappedToEquipment] = \'Mapped\' or PointStatus = \'Mapped\')'
def spaceSqlQuery='select id from (select id from dbo.organization union select id from dbo.facility union select id from dbo.building union select id from dbo.floor union select id from dbo.wing union select id from dbo.room union select id from dbo.systems) tmp'
def spaceSqlCountQuery='select count(id) as c from (select id from dbo.organization union select id from dbo.facility union select id from dbo.building union select id from dbo.floor union select id from dbo.wing union select id from dbo.room union select id from dbo.systems) tmp'
def cache = CTL.lastIngestTimeMap
def clientDb = CTL.SQLLookupService.getConnection(flowFile.getAttributes())//SQL.staticService
int numRowsTimeSeries=0
int numRowsSpace=0
clientDb.rows(timseriesSqlCountQuery).eachWithIndex { row, idx ->numRowsTimeSeries= row.c}
clientDb.rows(spaceSqlCountQuery).eachWithIndex { row, idx ->numRowsSpace= row.c}
}
Exception from Nifi logs
2019-09-12 06:18:33,629 ERROR [Timer-Driven Process Thread-3] o.a.n.p.groovyx.ExecuteGroovyScript ExecuteGroovyScript[id=b435c079-ee6c-3c42-a6ea-020968267ecf] ExecuteGroovyScript[id=b435c079-ee6c-3c42-a6ea-020968267ecf] failed to process session due to java.lang.ClassCastException; Processor Administratively Yielded for 1 sec: java.lang.ClassCastException
java.lang.ClassCastException: null
2019-09-12 06:18:33,629 WARN [Timer-Driven Process Thread-3] o.a.n.controller.tasks.ConnectableTask Administratively Yielding ExecuteGroovyScript[id=b435c079-ee6c-3c42-a6ea-020968267ecf] due to uncaught Exception: java.lang.ClassCastException
java.lang.ClassCastException: null
2019-09-12 06:18:33,629 ERROR [Timer-Driven Process Thread-9] o.a.n.p.groovyx.ExecuteGroovyScript ExecuteGroovyScript[id=9b81ca15-93a5-3953-9f40-d0874cfe2531] ExecuteGroovyScript[id=9b81ca15-93a5-3953-9f40-d0874cfe2531] failed to process session due to java.lang.ClassCastException; Processor Administratively Yielded for 1 sec: java.lang.ClassCastException
java.lang.ClassCastException: null
2019-09-12 06:18:33,629 WARN [Timer-Driven Process Thread-9] o.a.n.controller.tasks.ConnectableTask Administratively Yielding ExecuteGroovyScript[id=9b81ca15-93a5-3953-9f40-d0874cfe2531] due to uncaught Exception: java.lang.ClassCastException
java.lang.ClassCastException: null
2019-09-12 06:18:33,708 ERROR [Timer-Driven Process Thread-10] o.a.n.p.groovyx.ExecuteGroovyScript ExecuteGroovyScript[id=a1ec4496-dca3-38ab-a47b-43d7ff95e40f] org.apache.nifi.processor.exception.ProcessException: java.sql.SQLException: Cannot get a connection, pool error Timeout waiting for idle object: org.apache.nifi.processor.exception.ProcessException: java.sql.SQLException: Cannot get a connection, pool error Timeout waiting for idle object
org.apache.nifi.processor.exception.ProcessException: java.sql.SQLException: Cannot get a connection, pool error Timeout waiting for idle object
at org.apache.nifi.dbcp.DBCPConnectionPool.getConnection(DBCPConnectionPool.java:308)
at org.apache.nifi.dbcp.DBCPService.getConnection(DBCPService.java:49)
at sun.reflect.GeneratedMethodAccessor106.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.nifi.controller.service.StandardControllerServiceInvocationHandler.invoke(StandardControllerServiceInvocationHandler.java:84)
at com.sun.proxy.$Proxy89.getConnection(Unknown Source)
at org.apache.nifi.processors.groovyx.ExecuteGroovyScript.onInitSQL(ExecuteGroovyScript.java:339)
at org.apache.nifi.processors.groovyx.ExecuteGroovyScript.onTrigger(ExecuteGroovyScript.java:439)
at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1165)
at org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:203)
at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.sql.SQLException: Cannot get a connection, pool error Timeout waiting for idle object
at org.apache.commons.dbcp2.PoolingDataSource.getConnection(PoolingDataSource.java:142)
at org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1563)
at org.apache.nifi.dbcp.DBCPConnectionPool.getConnection(DBCPConnectionPool.java:305)
... 19 common frames omitted
Caused by: java.util.NoSuchElementException: Timeout waiting for idle object
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:451)
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:365)
at org.apache.commons.dbcp2.PoolingDataSource.getConnection(PoolingDataSource.java:134)
... 21 common frames omitted
2019-09-12 06:18:33,708 ERROR [Timer-Driven Process Thread-2] o.a.n.p.groovyx.ExecuteGroovyScript ExecuteGroovyScript[id=54d1e251-88f2-33f3-0489-722879a802bd] org.apache.nifi.processor.exception.ProcessException: java.sql.SQLException: Cannot get a connection, pool error Timeout waiting for idle object: org.apache.nifi.processor.exception.ProcessException: java.sql.SQLException: Cannot get a connection, pool error Timeout waiting for idle object
org.apache.nifi.processor.exception.ProcessException: java.sql.SQLException: Cannot get a connection, pool error Timeout waiting for idle object
at org.apache.nifi.dbcp.DBCPConnectionPool.getConnection(DBCPConnectionPool.java:308)
at org.apache.nifi.dbcp.DBCPService.getConnection(DBCPService.java:49)
at sun.reflect.GeneratedMethodAccessor106.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.nifi.controller.service.StandardControllerServiceInvocationHandler.invoke(StandardControllerServiceInvocationHandler.java:84)
at com.sun.proxy.$Proxy89.getConnection(Unknown Source)
at org.apache.nifi.processors.groovyx.ExecuteGroovyScript.onInitSQL(ExecuteGroovyScript.java:339)
at org.apache.nifi.processors.groovyx.ExecuteGroovyScript.onTrigger(ExecuteGroovyScript.java:439)
at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1165)
at org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:203)
at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
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: Cannot get a connection, pool error Timeout waiting for idle object
at org.apache.commons.dbcp2.PoolingDataSource.getConnection(PoolingDataSource.java:142)
at org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1563)
at org.apache.nifi.dbcp.DBCPConnectionPool.getConnection(DBCPConnectionPool.java:305)
... 19 common frames omitted
Caused by: java.util.NoSuchElementException: Timeout waiting for idle object
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:451)
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:365)
at org.apache.commons.dbcp2.PoolingDataSource.getConnection(PoolingDataSource.java:134)
... 21 common frames omitted
Finally after bring down Nifi twice I have found the solution. The problem seemed to be in the code which I was using, I used the object returned by CTL.index.getConnection(flowFile.getAttributes()) to query the SQL table which actually is a connection table, now due to this Nifi used up all available connections to SQL, due to which even if I reverted to using 'DBCPConnectionPool' service instead if 'Lookup' I was getting the above error. When I used to restart Nifi it used to work fine.
The actual code to be used in your script for using 'Lookup' Service is
def connectionObj = CTL.index.getConnection(flowFile.getAttributes())
def clientDb = new Sql(connectionObj)
Now use the 'clientDb' object to query your table
clientDb.rows(timseriesSqlCountQuery).eachWithIndex { row, idx ->numRowsTimeSeries= row.c}
When I am running multiple method concurrently then I am facing Communications link failure with JDBCConnectionException.
Bellow code is causing this issue.
Stream<Supplier<List<?>>> tasks = Stream.of(() -> dashboardResultSDHDao.getMarketResult(),
() -> dashboardResultSDHDao.getBatchResult(), () -> dashboardResultSDHDao.getModalityChatList(),
() -> dashboardResultSDHDao.getCoadingTimeList(), () -> dashboardResultSDHDao.getCoderPerformersList());
lists = tasks
// Supply all the tasks for execution and collect CompletableFutures
.map(CompletableFuture::supplyAsync).collect(Collectors.toList())
// Join all the CompletableFutures to gather the results
.stream().map(CompletableFuture::join).collect(Collectors.toList());
Please let me know how we can resolve it.
[1;31mERROR[0;39m o.h.e.jdbc.spi.SqlExceptionHelper.logExceptions - Communications link failure
The last packet successfully received from the server was 420,608 milliseconds ago. The last packet sent successfully to the server was 19,142 milliseconds ago.
03-02-2018 19:32:02.277 [35m[http-nio-8099-exec-9][0;39m
[1;31mERROR[0;39m c.o.oscar.dao.impl.AccuracyDaoImpl.getAccuracyResult - Exception :org.hibernate.exception.JDBCConnectionException: could not extract ResultSet
javax.persistence.PersistenceException: org.hibernate.exception.JDBCConnectionException: could not extract ResultSet
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1692)
at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1602)
at org.hibernate.jpa.internal.QueryImpl.getResultList(QueryImpl.java:492)
at com.omega.oscar.dao.impl.AccuracyDaoImpl.getAccuracyResult(AccuracyDaoImpl.java:98)
at com.omega.oscar.dao.impl.AccuracyDaoImpl$$FastClassBySpringCGLIB$$9b8ed9bf.invoke(<generated>)
at java.lang.Thread.run(Unknown Source)
Caused by: org.hibernate.exception.JDBCConnectionException: could not extract ResultSet
at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:115)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:70)
... 177 common frames omitted
Caused by: java.net.SocketTimeoutException: Read timed out
I have seted -DIGNITE_H2_DEBUG_CONSOLE in JVM parameters.
Then local H2 console started.
but exception occurred：
General error: "java.lang.UnsupportedOperationException"; SQL statement:
SELECT UPPER(VALUE) FROM INFORMATION_SCHEMA.SETTINGS WHERE NAME=? [50000-191] HY000/50000
org.h2.jdbc.JdbcSQLException: General error: "java.lang.UnsupportedOperationException"; SQL statement:
SELECT UPPER(VALUE) FROM INFORMATION_SCHEMA.SETTINGS WHERE NAME=? [50000-191]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
at org.h2.message.DbException.get(DbException.java:168)
at org.h2.message.DbException.convert(DbException.java:295)
at org.h2.command.Command.executeQuery(Command.java:213)
at org.h2.jdbc.JdbcPreparedStatement.executeQuery(JdbcPreparedStatement.java:110)
at org.h2.bnf.context.DbContents.readContents(DbContents.java:136)
...
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.UnsupportedOperationException
at org.apache.ignite.internal.processors.query.h2.opt.GridH2Row.setKey(GridH2Row.java:101)
at org.h2.table.MetaTable.add(MetaTable.java:1982)
at org.h2.table.MetaTable.generateRows(MetaTable.java:940)
at org.h2.index.MetaIndex.find(MetaIndex.java:50)
at org.h2.index.BaseIndex.find(BaseIndex.java:132)
at org.h2.index.IndexCursor.find(IndexCursor.java:169)
at org.h2.table.TableFilter.next(TableFilter.java:460)
at org.h2.command.dml.Select.queryFlat(Select.java:541)
...
at org.h2.command.CommandContainer.query(CommandContainer.java:110)
at org.h2.command.Command.executeQuery(Command.java:201)
... 8 more
This is a known issue: https://issues.apache.org/jira/browse/IGNITE-3685
It is fixed in upcoming Apache Ignite 1.8.
Have a batch which does some heavy operations. It runs for approximately 11-12 hours.
After that it moves to UNKNOWN state.
I have a question when would a batch move to UNKNOWN state?
Following is stack Trace.
org.springframework.transaction.TransactionSystemException: Could not roll back JDBC transaction; nested exception is java.sql.SQLException: Protocol violation
at org.springframework.jdbc.datasource.DataSourceTransactionManager.doRollback(DataSourceTransactionManager.java:285)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processRollback(AbstractPlatformTransactionManager.java:845)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.rollback(AbstractPlatformTransactionManager.java:822)
at org.springframework.transaction.support.TransactionTemplate.rollbackOnException(TransactionTemplate.java:161)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:134)
at org.springframework.batch.core.step.tasklet.TaskletStep$2.doInChunkContext(TaskletStep.java:264)
at org.springframework.batch.core.scope.context.StepContextRepeatCallback.doInIteration(StepContextRepeatCallback.java:76)
at org.springframework.batch.repeat.support.RepeatTemplate.getNextResult(RepeatTemplate.java:367)
at org.springframework.batch.repeat.support.RepeatTemplate.executeInternal(RepeatTemplate.java:214)
at org.springframework.batch.repeat.support.RepeatTemplate.iterate(RepeatTemplate.java:143)
at org.springframework.batch.core.step.tasklet.TaskletStep.doExecute(TaskletStep.java:284)
at org.springframework.batch.core.step.AbstractStep.execute(AbstractStep.java:195)
at org.springframework.batch.core.job.SimpleStepHandler.handleStep(SimpleStepHandler.java:135)
at org.springframework.batch.core.job.flow.JobFlowExecutor.executeStep(JobFlowExecutor.java:61)
at org.springframework.batch.core.job.flow.support.state.StepState.handle(StepState.java:60)
at org.springframework.batch.core.job.flow.support.SimpleFlow.resume(SimpleFlow.java:144)
at org.springframework.batch.core.job.flow.support.SimpleFlow.start(SimpleFlow.java:124)
at org.springframework.batch.core.job.flow.FlowJob.doExecute(FlowJob.java:135)
at org.springframework.batch.core.job.AbstractJob.execute(AbstractJob.java:282)
at org.springframework.batch.core.launch.support.SimpleJobLauncher$1.run(SimpleJobLauncher.java:121)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:909)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.sql.SQLException: Protocol violation
at oracle.jdbc.driver.T4CTTIfun.receive
Thanks
Aditya
A batch job will move into the UNKNOWN state only when a rollback is unsuccessful, leaving the job in an uncertain state which is what it looks like happened here. The real question here is…why was the rollback unsuccessful?
Check org.springframework.batch.core.step.AbstractStep. It is full of:
try {
getJobRepository().updateExecutionContext(stepExecution);
}
catch (Exception e) {
stepExecution.setStatus(BatchStatus.UNKNOWN);
exitStatus = exitStatus.and(ExitStatus.UNKNOWN);
stepExecution.addFailureException(e);
}
So it happens on update* operations of getJobRepository() (same as #Minella stated).
I am intermittently getting the following jdbc error with my oracle db (in remote linux machine)
java.sql.SQLException: ORA-03120: two-task conversion routine: integer overflow
The query that mostly breaks(not the only one!) looks like this, note that I am using Groovy Sql
String insertScript =
"""
INSERT INTO data_table (invoke_id , trans_type , trans_from ,
trans_to , serv_type ,msg_type , man_id , recip_id ,
trx_id , part_id , msg_orig_time , create_time ,
action_code , num_ranges , use_trx_id, due_date,owner,route,lsa,
cl_id,hl_id,requ_type,lnp_type,use_invoke_id)
VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)
"""
def params = [invokeId,transType,transFrom,transTo,servType,msgType,man,recip,portId,owner,
now,now,"W",1,trxId,dueDate,owner," ", "LSA","CCH"," ","Basic","lspp",invokeId]
sql.execute insertScript, params
What I do not understand is why my queries work some time and not other times. Generally it will happen during the first run and only rarely appear in subsequent runs.
[UPDATE] I am getting this error sometimes on application startup also, when spring tries to load its context. I am using spring and dbcp for the connection pooling.
Caused by: org.apache.commons.dbcp.SQLNestedException: Error preloading the connection pool
at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1238)
at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:113)
at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:79)
... 46 more
Caused by: java.sql.SQLException: ORA-03120: two-task conversion routine: integer overflow
at oracle.jdbc.driver.SQLStateMapping.newSQLException(SQLStateMapping.java:70)
at oracle.jdbc.driver.DatabaseError.newSQLException(DatabaseError.java:131)
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:204)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:455)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:406)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:399)
at oracle.jdbc.driver.T4CTTIoauthenticate.receiveOauth(T4CTTIoauthenticate.java:799)
at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:368)
at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java:508)
at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:203)
at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:33)
at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:510)
at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38)
at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:294)
at org.apache.commons.pool.impl.GenericObjectPool.addObject(GenericObjectPool.java:1059)
at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1235)
... 49 more