Increasing the pool only makes it fail later.. The connections are not
freed apparently. Who holds them ? Can't you see that in JMX console ?

-------------------------------------------------------------------------------------
*Isabelle Mauny*
VP, Product Strategy - WSO2, Inc. - http://wso2.com/


On Thu, Jun 30, 2016 at 11:12 AM, Chandana Napagoda <[email protected]>
wrote:

> Hi Chalitha,
>
> You can disable the indexing in the APIM GW and KM nodes by setting
> "startIndexing" parameter as false. This "startIndexing" parameter should
> be configured in the registry.xml file under "indexingConfiguration"
> section.
>
> Anyway, it's better to check the DB query execution time by using log4jdbc
> driver.
>
> Regards,
> Chandana
>
> On Thu, Jun 30, 2016 at 2:29 PM, Chalitha Waldeniyage <[email protected]>
> wrote:
>
>> Hi Abimaran,
>>
>> As per Danesh comment, I have increase the max active connection till
>> 120. Still i am seeing this error printed continuously. Do we need to
>> increase the value further
>>
>>
>> [2016-06-30 08:58:28,802] ERROR - TransactionManager Failed to start new
>> registry transaction.
>> org.apache.tomcat.jdbc.pool.PoolExhaustedException: [pool-234-thread-10]
>> Timeout: Pool empty. Unable to fetch a connection in 60 seconds, none
>> available[size:120; busy:120; idle:0; lastwait:60000].
>>     at
>> org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:674)
>>     at
>> org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)
>>     at
>> org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)
>>     at
>> org.wso2.carbon.registry.core.jdbc.dataaccess.JDBCTransactionManager.beginTransaction(JDBCTransactionManager.java:80)
>>     at
>> org.wso2.carbon.registry.core.jdbc.EmbeddedRegistry.beginTransaction(EmbeddedRegistry.java:443)
>>     at
>> org.wso2.carbon.registry.core.jdbc.EmbeddedRegistry.get(EmbeddedRegistry.java:505)
>>     at
>> org.wso2.carbon.registry.core.caching.CacheBackedRegistry.get(CacheBackedRegistry.java:177)
>>     at
>> org.wso2.carbon.registry.core.session.UserRegistry.getInternal(UserRegistry.java:616)
>>     at
>> org.wso2.carbon.registry.core.session.UserRegistry.access$400(UserRegistry.java:60)
>>     at
>> org.wso2.carbon.registry.core.session.UserRegistry$5.run(UserRegistry.java:596)
>>     at
>> org.wso2.carbon.registry.core.session.UserRegistry$5.run(UserRegistry.java:593)
>>     at java.security.AccessController.doPrivileged(Native Method)
>>     at
>> org.wso2.carbon.registry.core.session.UserRegistry.get(UserRegistry.java:593)
>>     at
>> org.wso2.carbon.registry.indexing.AsyncIndexer$IndexingTask.createIndexDocument(AsyncIndexer.java:209)
>>     at
>> org.wso2.carbon.registry.indexing.AsyncIndexer$IndexingTask.run(AsyncIndexer.java:196)
>>     at
>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>>     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>>     at
>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>>     at
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>>     at java.lang.Thread.run(Thread.java:745)
>> [2016-06-30 08:58:28,803] ERROR - AsyncIndexer Error while indexing.
>> org.wso2.carbon.registry.core.exceptions.RegistryException: Failed to
>> start new registry transaction.
>>     at
>> org.wso2.carbon.registry.core.jdbc.dataaccess.JDBCTransactionManager.beginTransaction(JDBCTransactionManager.java:97)
>>     at
>> org.wso2.carbon.registry.core.jdbc.EmbeddedRegistry.beginTransaction(EmbeddedRegistry.java:443)
>>     at
>> org.wso2.carbon.registry.core.jdbc.EmbeddedRegistry.get(EmbeddedRegistry.java:505)
>>     at
>> org.wso2.carbon.registry.core.caching.CacheBackedRegistry.get(CacheBackedRegistry.java:177)
>>     at
>> org.wso2.carbon.registry.core.session.UserRegistry.getInternal(UserRegistry.java:616)
>>     at
>> org.wso2.carbon.registry.core.session.UserRegistry.access$400(UserRegistry.java:60)
>>     at
>> org.wso2.carbon.registry.core.session.UserRegistry$5.run(UserRegistry.java:596)
>>     at
>> org.wso2.carbon.registry.core.session.UserRegistry$5.run(UserRegistry.java:593)
>>     at java.security.AccessController.doPrivileged(Native Method)
>>     at
>> org.wso2.carbon.registry.core.session.UserRegistry.get(UserRegistry.java:593)
>>     at
>> org.wso2.carbon.registry.indexing.AsyncIndexer$IndexingTask.createIndexDocument(AsyncIndexer.java:209)
>>     at
>> org.wso2.carbon.registry.indexing.AsyncIndexer$IndexingTask.run(AsyncIndexer.java:196)
>>     at
>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>>     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>>     at
>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>>     at
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>>     at java.lang.Thread.run(Thread.java:745)
>> Caused by: org.apache.tomcat.jdbc.pool.PoolExhaustedException:
>> [pool-234-thread-10] Timeout: Pool empty. Unable to fetch a connection in
>> 60 seconds, none available[size:120; busy:120; idle:0; lastwait:60000].
>>     at
>> org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:674)
>>     at
>> org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)
>>     at
>> org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)
>>     at
>> org.wso2.carbon.registry.core.jdbc.dataaccess.JDBCTransactionManager.beginTransaction(JDBCTransactionManager.java:80)
>>     ... 16 more
>>
>>
>>
>>
>> On Thu, Jun 30, 2016 at 2:06 PM, Abimaran Kugathasan <[email protected]>
>> wrote:
>>
>>> Hi Chalitha,
>>>
>>> Caused by: org.apache.tomcat.jdbc.pool.PoolExhaustedException:
>>> [pool-216-thread-7] Timeout: Pool empty. Unable to fetch a connection in 60
>>> seconds, none available[size:50; busy:50; idle:0; lastwait:60000].
>>>
>>> From the above logs, the problem lies with the database connection which
>>> has pool size of 50. So it should be carbon db, because for other dbsm you
>>> are having 100 as the pool size. You need to increase it as well.
>>>
>>> On Thu, Jun 30, 2016 at 1:46 PM, Chalitha Waldeniyage <[email protected]
>>> > wrote:
>>>
>>>> Hi Danesh,
>>>>
>>>> Yes, We have done that on Registry,AM,UM,Conf,Gov databases up to 100
>>>> which are pointed to oracle database. But for the carbon db we didn't
>>>> change it since it's local h2.
>>>> Do we need to change it also?
>>>>
>>>> On Thu, Jun 30, 2016 at 1:34 PM, Danesh Kuruppu <[email protected]>
>>>> wrote:
>>>>
>>>>> Hi Chalitha,
>>>>>
>>>>> Can you increase the maxActive in Registry DB configuration. Seems
>>>>> like there are no available connections in tomcat jdbc pool. Please set
>>>>> this to 80 at least.
>>>>>
>>>>> Thanks
>>>>> Danesh
>>>>>
>>>>> On Thu, Jun 30, 2016 at 8:29 AM, Chalitha Waldeniyage <
>>>>> [email protected]> wrote:
>>>>>
>>>>>> Hi All,
>>>>>>
>>>>>> We have setup an API Manager cluster (beta 15th pack) fronted by
>>>>>> nginx with following details.
>>>>>>
>>>>>> Publisher
>>>>>> Two store nodes
>>>>>> Gateway Cluster(one manager with two workers)
>>>>>> IS as key manager(two node cluster)
>>>>>> DB-Oracle 12c
>>>>>> Userstore-Read/write ldap
>>>>>>
>>>>>> We have ran a long running test for some days and observed out of
>>>>>> memory on one of the IS nodes. Once we have cleaned all created heap
>>>>>> dumps,logs and try to restart the cluster again and found the following
>>>>>> error continuously on publisher, gateway and IS nodes.
>>>>>>
>>>>>> I have attached the current database running process details with
>>>>>> [1]. Further we have used the [2] for fine tunning the servers.
>>>>>>
>>>>>> Appreciate your  feedback on resolving this.
>>>>>>
>>>>>>
>>>>>>
>>>>>> ERROR - TransactionManager Failed to start new registry transaction.
>>>>>> org.apache.tomcat.jdbc.pool.PoolExhaustedException:
>>>>>> [pool-216-thread-7] Timeout: Pool empty. Unable to fetch a connection in 
>>>>>> 60
>>>>>> seconds, none available[size:50; busy:50; idle:0; lastwait:60000].
>>>>>>     at
>>>>>> org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:674)
>>>>>>     at
>>>>>> org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)
>>>>>>     at
>>>>>> org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.jdbc.dataaccess.JDBCTransactionManager.beginTransaction(JDBCTransactionManager.java:80)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.jdbc.EmbeddedRegistry.beginTransaction(EmbeddedRegistry.java:443)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.jdbc.EmbeddedRegistry.getTags(EmbeddedRegistry.java:1532)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.caching.CacheBackedRegistry.getTags(CacheBackedRegistry.java:403)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.session.UserRegistry.getTagsInternal(UserRegistry.java:1398)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.session.UserRegistry.access$2500(UserRegistry.java:60)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.session.UserRegistry$26.run(UserRegistry.java:1381)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.session.UserRegistry$26.run(UserRegistry.java:1378)
>>>>>>     at java.security.AccessController.doPrivileged(Native Method)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.session.UserRegistry.getTags(UserRegistry.java:1378)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.indexing.indexer.IndexDocumentCreator.addTags(IndexDocumentCreator.java:201)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.indexing.indexer.IndexDocumentCreator.createIndexDocument(IndexDocumentCreator.java:117)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.indexing.AsyncIndexer$IndexingTask.createIndexDocument(AsyncIndexer.java:212)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.indexing.AsyncIndexer$IndexingTask.run(AsyncIndexer.java:196)
>>>>>>     at
>>>>>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>>>>>>     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>>>>>>     at
>>>>>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>>>>>>     at
>>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>>>>>>     at java.lang.Thread.run(Thread.java:745)
>>>>>> [2016-06-30 06:28:48,855] ERROR - AsyncIndexer Error while indexing.
>>>>>> org.wso2.carbon.registry.core.exceptions.RegistryException: Failed to
>>>>>> start new registry transaction.
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.jdbc.dataaccess.JDBCTransactionManager.beginTransaction(JDBCTransactionManager.java:97)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.jdbc.EmbeddedRegistry.beginTransaction(EmbeddedRegistry.java:443)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.jdbc.EmbeddedRegistry.getTags(EmbeddedRegistry.java:1532)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.caching.CacheBackedRegistry.getTags(CacheBackedRegistry.java:403)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.session.UserRegistry.getTagsInternal(UserRegistry.java:1398)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.session.UserRegistry.access$2500(UserRegistry.java:60)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.session.UserRegistry$26.run(UserRegistry.java:1381)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.session.UserRegistry$26.run(UserRegistry.java:1378)
>>>>>>     at java.security.AccessController.doPrivileged(Native Method)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.session.UserRegistry.getTags(UserRegistry.java:1378)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.indexing.indexer.IndexDocumentCreator.addTags(IndexDocumentCreator.java:201)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.indexing.indexer.IndexDocumentCreator.createIndexDocument(IndexDocumentCreator.java:117)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.indexing.AsyncIndexer$IndexingTask.createIndexDocument(AsyncIndexer.java:212)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.indexing.AsyncIndexer$IndexingTask.run(AsyncIndexer.java:196)
>>>>>>     at
>>>>>> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
>>>>>>     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>>>>>>     at
>>>>>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>>>>>>     at
>>>>>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>>>>>>     at java.lang.Thread.run(Thread.java:745)
>>>>>> Caused by: org.apache.tomcat.jdbc.pool.PoolExhaustedException:
>>>>>> [pool-216-thread-7] Timeout: Pool empty. Unable to fetch a connection in 
>>>>>> 60
>>>>>> seconds, none available[size:50; busy:50; idle:0; lastwait:60000].
>>>>>>     at
>>>>>> org.apache.tomcat.jdbc.pool.ConnectionPool.borrowConnection(ConnectionPool.java:674)
>>>>>>     at
>>>>>> org.apache.tomcat.jdbc.pool.ConnectionPool.getConnection(ConnectionPool.java:188)
>>>>>>     at
>>>>>> org.apache.tomcat.jdbc.pool.DataSourceProxy.getConnection(DataSourceProxy.java:128)
>>>>>>     at
>>>>>> org.wso2.carbon.registry.core.jdbc.dataaccess.JDBCTransactionManager.beginTransaction(JDBCTransactionManager.java:80)
>>>>>>     ... 18 more
>>>>>>
>>>>>>
>>>>>> [1]
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> [2] https://docs.wso2.com/display/AM1100/Tuning+Performance
>>>>>> ​
>>>>>>
>>>>>> Thank you,
>>>>>> --
>>>>>> *Chalitha Maheshwari*
>>>>>> Software Engineer-QA,
>>>>>> WSO2 Inc.
>>>>>>
>>>>>> *E-mail:* [email protected]
>>>>>> *Mobile: *+94710 411 112
>>>>>>
>>>>>> ​
>>>>>>
>>>>>> _______________________________________________
>>>>>> Dev mailing list
>>>>>> [email protected]
>>>>>> http://wso2.org/cgi-bin/mailman/listinfo/dev
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>> Danesh Kuruppu
>>>>> Software Engineer
>>>>> WSO2 Inc,
>>>>> Mobile: +94 (77) 1690552
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> *Chalitha Maheshwari*
>>>> Software Engineer-QA,
>>>> WSO2 Inc.
>>>>
>>>> *E-mail:* [email protected]
>>>> *Mobile: *+94710 411 112
>>>>
>>>> _______________________________________________
>>>> Dev mailing list
>>>> [email protected]
>>>> http://wso2.org/cgi-bin/mailman/listinfo/dev
>>>>
>>>>
>>>
>>>
>>> --
>>> Thanks
>>> Abimaran Kugathasan
>>> Senior Software Engineer
>>>
>>> Email : [email protected]
>>> Mobile : +94 773922820
>>>
>>> <http://stackoverflow.com/users/515034>
>>> <http://lk.linkedin.com/in/abimaran>
>>> <http://www.lkabimaran.blogspot.com/>  <https://github.com/abimarank>
>>> <https://twitter.com/abimaran>
>>>
>>>
>>
>>
>> --
>> *Chalitha Maheshwari*
>> Software Engineer-QA,
>> WSO2 Inc.
>>
>> *E-mail:* [email protected]
>> *Mobile: *+94710 411 112
>>
>> _______________________________________________
>> Dev mailing list
>> [email protected]
>> http://wso2.org/cgi-bin/mailman/listinfo/dev
>>
>>
>
>
> --
> *Chandana Napagoda*
> Senior Software Engineer
> WSO2 Inc. - http://wso2.org
>
> *Email  :  [email protected] <[email protected]>**Mobile : +94718169299
> <%2B94718169299>*
>
> *Blog  :    http://cnapagoda.blogspot.com <http://cnapagoda.blogspot.com>*
>
>
> _______________________________________________
> Dev mailing list
> [email protected]
> http://wso2.org/cgi-bin/mailman/listinfo/dev
>
>
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