How to use 'DBCPConnectionPoolLookup' in &

2020-05-07 19:43发布

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问题:

I want to use 'DBCPConnectionPoolLookup' controller service in 'ExecuteGroovyScript' processor. I set 'database.name' But I get this Error:

This is 'ExecuteGroovyScript' configs:

I found someone who had same problem and solved it here, but his approach to solve the problem is not complete.

I think I should use CTL as described in answer part of this question but I got this Error:

This is my config:

Please let me know what is the problem?

update: I removed try/catch from code and got these errors:

Using SQL.db:

Using CTL.sql:

Full log:

2019-10-17 22:27:12,685 ERROR [Timer-Driven Process Thread-10] o.a.n.p.groovyx.ExecuteGroovyScript ExecuteGroovyScript[id=bb9d644c-016d-1000-5485-c915da52bbfb] 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:474)
    at org.apache.nifi.dbcp.DBCPService.getConnection(DBCPService.java:49)
    at sun.reflect.GeneratedMethodAccessor1514.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:87)
    at com.sun.proxy.$Proxy100.getConnection(Unknown Source)
    at org.apache.nifi.dbcp.DBCPService$getConnection.call(Unknown Source)
    at Scriptffffffffa8c699bc.run(Scriptffffffffa8c699bc.groovy:8)
    at org.apache.nifi.processors.groovyx.ExecuteGroovyScript.onTrigger(ExecuteGroovyScript.java:449)
    at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
    at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1162)
    at org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:209)
    at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
    at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
    at java.util.concurrent.Executors$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:470)
    ... 21 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)
    ... 23 common frames omitted
2019-10-17 22:27:13,194 ERROR [Timer-Driven Process Thread-10] o.a.n.p.groovyx.ExecuteGroovyScript ExecuteGroovyScript[id=bb9d644c-016d-1000-5485-c915da52bbfb] 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:474)
    at org.apache.nifi.dbcp.DBCPService.getConnection(DBCPService.java:49)
    at sun.reflect.GeneratedMethodAccessor1514.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:87)
    at com.sun.proxy.$Proxy100.getConnection(Unknown Source)
    at org.apache.nifi.dbcp.DBCPService$getConnection.call(Unknown Source)
    at Scriptffffffffa8c699bc.run(Scriptffffffffa8c699bc.groovy:8)
    at org.apache.nifi.processors.groovyx.ExecuteGroovyScript.onTrigger(ExecuteGroovyScript.java:449)
    at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
    at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1162)
    at org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:209)
    at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
    at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
    at java.util.concurrent.Executors$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$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.sql.SQLException: Cannot get a connection, pool error Timeout waiting for idle object
    at org.apache.commons.dbcp2.PoolingDataSource.getConnection(PoolingDataSource.java:142)
    at org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1563)
    at org.apache.nifi.dbcp.DBCPConnectionPool.getConnection(DBCPConnectionPool.java:470)
    ... 21 common frames omitted
Caused by: java.util.NoSuchElementException: Timeout waiting for idle object
    at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:451)
    at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:365)
    at org.apache.commons.dbcp2.PoolingDataSource.getConnection(PoolingDataSource.java:134)
    ... 23 common frames omitted
2019-10-17 22:31:58,045 WARN [Timer-Driven Process Thread-4] o.a.n.controller.tasks.ConnectableTask Administratively Yielding ExecuteGroovyScript[id=bb9d644c-016d-1000-5485-c915da52bbfb] due to uncaught Exception: java.lang.ClassCastException: com.sun.proxy.$Proxy128 cannot be cast to org.apache.nifi.processors.groovyx.sql.OSql
java.lang.ClassCastException: com.sun.proxy.$Proxy128 cannot be cast to org.apache.nifi.processors.groovyx.sql.OSql
    at org.apache.nifi.processors.groovyx.ExecuteGroovyScript.onFinitSQL(ExecuteGroovyScript.java:371)
    at org.apache.nifi.processors.groovyx.ExecuteGroovyScript.onTrigger(ExecuteGroovyScript.java:464)
    at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
    at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1162)
    at org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:209)
    at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
    at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
    at java.util.concurrent.Executors$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$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
2019-10-17 22:31:59,045 ERROR [Timer-Driven Process Thread-2] o.a.n.p.groovyx.ExecuteGroovyScript ExecuteGroovyScript[id=bb9d644c-016d-1000-5485-c915da52bbfb] org.apache.nifi.processor.exception.ProcessException: Attributes must contain an attribute name 'database.name': org.apache.nifi.processor.exception.ProcessException: Attributes must contain an attribute name 'database.name'
org.apache.nifi.processor.exception.ProcessException: Attributes must contain an attribute name 'database.name'
    at org.apache.nifi.dbcp.DBCPConnectionPoolLookup.getConnection(DBCPConnectionPoolLookup.java:124)
    at sun.reflect.GeneratedMethodAccessor1514.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.apache.nifi.controller.service.StandardControllerServiceInvocationHandler.invoke(StandardControllerServiceInvocationHandler.java:87)
    at com.sun.proxy.$Proxy128.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:1162)
    at org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:209)
    at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
    at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
    at java.util.concurrent.Executors$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)

Script Code for SQL.db:

flowFile = session.get()
if(!flowFile) return
def RawData =flowFile.read().getText("UTF-8")
def JobId = flowFile.ExtractJobId
def params = [RawData,JobId]
def result = SQL.db.executeInsert("INSERT INTO ExtractFiles (RawData,JobId,CreateTimestamp,UpdateTimestamp) VALUES (?,?,CURRENT_TIMESTAMP,CURRENT_TIMESTAMP)",params)
flowFile.'ExtractFileId' = result[0][0]
REL_SUCCESS << flowFile

Script code for CTL.sql:

import groovy.sql.Sql

flowFile = session.get()
if(!flowFile) return
def RawData =flowFile.read().getText("UTF-8")
def JobId = flowFile.ExtractJobId
def params = [RawData,JobId]
def myDbConnection = CTL.sql.getConnection(flowFile.getAttributes())
def myClientDb = new Sql(myDbConnection)
def result = myClientDb.executeInsert("INSERT INTO ExtractFiles (RawData,JobId,CreateTimestamp,UpdateTimestamp) VALUES (?,?,CURRENT_TIMESTAMP,CURRENT_TIMESTAMP)",params)
flowFile.'ExtractFileId' = result[0][0]
REL_SUCCESS << flowFile

回答1:

I used CTL object and edited the code to solve the problem:

import groovy.sql.Sql

flowFile = session.get()
if(!flowFile) return
def dbConnection = CTL.db.getConnection(flowFile.getAttributes())
def clientDb = new Sql(dbConnection)
try {
    def RawData =flowFile.read().getText("UTF-8")
    def JobId = flowFile.ExtractJobId
    def params = [RawData,JobId]
    def result = clientDb.executeInsert("INSERT INTO ExtractFiles (RawData,JobId,CreateTimestamp,UpdateTimestamp) VALUES (?,?,CURRENT_TIMESTAMP,CURRENT_TIMESTAMP)",params)
    flowFile.'ExtractFileId' = result[0][0]
    REL_SUCCESS << flowFile
} catch (Exception e) {
    throw e;
} finally {
    clientDb.close();
}

I added clientDb.close() as @daggett said in comments.



标签： groovy apache-nifi
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