Hi it seems that you have persisted a resource + created an association at
the same time in two threads. How could this happen? Is it a part of the
same process? or two things? And +1 for running perf tests. But, this time
we need to eradicate the possibilities of such or at least introduce some
retry mechanism (or handle exceptions), instead of simply treating this as a
perf issue. Not everybody have the same hardware configurations that we do,
and there can be possibilities of such.

Thanks,
Senaka.

On Wed, Feb 24, 2010 at 11:52 AM, Sumedha Rubasinghe <[email protected]>wrote:

> Hi Hiranya,
> Did you press save config button multiple times?
>
> /sumedha
>
>
>
> On Wed, Feb 24, 2010 at 11:28 AM, Hiranya Jayathilaka <[email protected]>wrote:
>
>> Following exception encountered in the ESB while updating a proxy service:
>>
>>
>> Exception in thread "Thread-23"
>> org.wso2.carbon.mediation.initializer.persistence.ServiceBusPersistenceException:
>> Error while saving mediation configuration changes
>>  at
>> org.wso2.carbon.mediation.initializer.persistence.MediationPersistenceManager.handleException(MediationPersistenceManager.java:278)
>> at
>> org.wso2.carbon.mediation.initializer.persistence.MediationPersistenceManager.access$1200(MediationPersistenceManager.java:48)
>>  at
>> org.wso2.carbon.mediation.initializer.persistence.MediationPersistenceManager$MediationPersistenceWorker.run(MediationPersistenceManager.java:320)
>> Caused by:
>> org.wso2.carbon.mediation.initializer.persistence.ServiceBusPersistenceException:
>> Unable to persist the proxy service in the path :
>> /repository/synapse/proxy-services/FooProxy
>> at
>> org.wso2.carbon.mediation.initializer.persistence.registry.AbstractRegistryStore.handleException(AbstractRegistryStore.java:101)
>>  at
>> org.wso2.carbon.mediation.initializer.persistence.registry.ProxyServiceRegistryStore.persistElement(ProxyServiceRegistryStore.java:72)
>> at
>> org.wso2.carbon.mediation.initializer.persistence.AbstractStore.saveToRegistry(AbstractStore.java:154)
>>  at
>> org.wso2.carbon.mediation.initializer.persistence.AbstractStore.save(AbstractStore.java:82)
>> at
>> org.wso2.carbon.mediation.initializer.persistence.MediationPersistenceManager.persistElement(MediationPersistenceManager.java:335)
>>  at
>> org.wso2.carbon.mediation.initializer.persistence.MediationPersistenceManager.access$1000(MediationPersistenceManager.java:48)
>> at
>> org.wso2.carbon.mediation.initializer.persistence.MediationPersistenceManager$MediationPersistenceWorker.run(MediationPersistenceManager.java:314)
>> Caused by: org.wso2.carbon.registry.core.exceptions.RegistryException:
>> Unable to persist element
>> at
>> org.wso2.carbon.mediation.initializer.persistence.registry.AbstractRegistryStore.persistElement(AbstractRegistryStore.java:95)
>>  at
>> org.wso2.carbon.mediation.initializer.persistence.registry.ProxyServiceRegistryStore.persistElement(ProxyServiceRegistryStore.java:69)
>> ... 5 more
>> Caused by: org.wso2.carbon.registry.core.exceptions.RegistryException:
>> Failed to add log entry for resource
>> /_system/config/repository/synapse/proxy-services. Deadlock detected. The
>> current transaction was rolled back. Details:
>> Session #9 (user: WSO2CARBON) is waiting to lock PUBLIC.REG_RESOURCE while
>> locking PUBLIC.REG_ASSOCIATION (exclusive), PUBLIC.REG_LOG (exclusive).
>> Session #12 (user: WSO2CARBON) is waiting to lock PUBLIC.REG_LOG while
>> locking PUBLIC.REG_CONTENT_HISTORY (exclusive), PUBLIC.REG_RESOURCE_HISTORY
>> (exclusive), PUBLIC.REG_RESOURCE (exclusive), PUBLIC.REG_CONTENT
>> (exclusive), PUBLIC.REG_SNAPSHOT (exclusive).; SQL statement:
>> INSERT INTO REG_LOG (REG_PATH, REG_USER_ID, REG_LOGGED_TIME, REG_ACTION,
>> REG_ACTION_DATA, REG_TENANT_ID) VALUES (?, ?, ?, ?, ?, ?) [40001-112]
>> at org.wso2.carbon.registry.core.jdbc.dao.LogsDAO.addLog(LogsDAO.java:79)
>>  at
>> org.wso2.carbon.registry.core.jdbc.Repository.update(Repository.java:966)
>> at
>> org.wso2.carbon.registry.core.jdbc.Repository.updateParent(Repository.java:947)
>>  at
>> org.wso2.carbon.registry.core.jdbc.Repository.delete(Repository.java:403)
>> at
>> org.wso2.carbon.registry.core.jdbc.EmbeddedRegistry.delete(EmbeddedRegistry.java:807)
>>  at
>> org.wso2.carbon.registry.core.session.UserRegistry.delete(UserRegistry.java:625)
>> at
>> org.wso2.carbon.mediation.initializer.persistence.registry.AbstractRegistryStore.persistElement(AbstractRegistryStore.java:79)
>>  ... 6 more
>> Caused by: org.h2.jdbc.JdbcSQLException: Deadlock detected. The current
>> transaction was rolled back. Details:
>> Session #9 (user: WSO2CARBON) is waiting to lock PUBLIC.REG_RESOURCE while
>> locking PUBLIC.REG_ASSOCIATION (exclusive), PUBLIC.REG_LOG (exclusive).
>> Session #12 (user: WSO2CARBON) is waiting to lock PUBLIC.REG_LOG while
>> locking PUBLIC.REG_CONTENT_HISTORY (exclusive), PUBLIC.REG_RESOURCE_HISTORY
>> (exclusive), PUBLIC.REG_RESOURCE (exclusive), PUBLIC.REG_CONTENT
>> (exclusive), PUBLIC.REG_SNAPSHOT (exclusive).; SQL statement:
>> INSERT INTO REG_LOG (REG_PATH, REG_USER_ID, REG_LOGGED_TIME, REG_ACTION,
>> REG_ACTION_DATA, REG_TENANT_ID) VALUES (?, ?, ?, ?, ?, ?) [40001-112]
>> at org.h2.message.Message.getSQLException(Message.java:107)
>>  at org.h2.message.Message.getSQLException(Message.java:118)
>> at org.h2.message.Message.getSQLException(Message.java:77)
>>  at org.h2.table.TableData.doLock(TableData.java:428)
>> at org.h2.table.TableData.lock(TableData.java:375)
>>  at org.h2.command.dml.Insert.update(Insert.java:99)
>> at org.h2.command.CommandContainer.update(CommandContainer.java:71)
>>  at org.h2.command.Command.executeUpdate(Command.java:207)
>> at
>> org.h2.jdbc.JdbcPreparedStatement.executeUpdateInternal(JdbcPreparedStatement.java:139)
>>  at
>> org.h2.jdbc.JdbcPreparedStatement.executeUpdate(JdbcPreparedStatement.java:128)
>> at
>> org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate(DelegatingPreparedStatement.java:102)
>>  at
>> org.wso2.carbon.registry.core.jdbc.dao.LogsDAO.addLog(LogsDAO.java:72)
>> ... 12 more
>>
>> Thanks
>> --
>> Hiranya Jayathilaka
>> Software Engineer;
>> WSO2 Inc.;  http://wso2.org
>> E-mail: [email protected];  Mobile: +94 77 633 3491
>> Blog: http://techfeast-hiranya.blogspot.com
>>
>> _______________________________________________
>> Carbon-dev mailing list
>> [email protected]
>> https://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
>>
>>
>
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>


-- 
Senaka Fernando
Software Engineer
WSO2 Inc.
E-mail: senaka AT wso2.com;  Mobile: +94 77 322 1818

http://www.wso2.com/ - "Lean . Enterprise . Middleware"
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