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Assertion failed: poll() is a blocking call and cannot be called on the Service thread

user13507523Sep 20 2013 — edited Sep 23 2013

Hi

We are getting a strange issue, the application successfully joins the cluster but after start failing with following exception.

The cluster have three nodes storage disabled web-logic and two standalone coherence JVM's, we are using distributed cache with Local scheme

<Error> (thread=DistributedCache, member=4): Assertion failed: poll() is a blocking call and cannot be called on the Service thread

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.poll(Grid.CDB:5)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.poll(Grid.CDB:11)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$BinaryMap.get(PartitionedCache.CDB:26)

at com.tangosol.util.ConverterCollections$ConverterMap.get(ConverterCollections.java:1655)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$ViewMap.get(PartitionedCache.CDB:1)

at com.tangosol.coherence.component.util.SafeNamedCache.get(SafeNamedCache.CDB:1)

at com.thehartford.pi.core.referencedata.dao.cachedaoimpl.ReferenceCacheDAOImpl.getReferenceData(Unknown Source)

at com.thehartford.pi.core.caching.cachestore.ReferenceCacheStore.load(Unknown Source)

at com.tangosol.net.cache.ReadWriteBackingMap$CacheLoaderCacheStore.load(ReadWriteBackingMap.java:6132)

at com.tangosol.net.cache.ReadWriteBackingMap$CacheStoreWrapper.loadInternal(ReadWriteBackingMap.java:5616)

at com.tangosol.net.cache.ReadWriteBackingMap$StoreWrapper.load(ReadWriteBackingMap.java:4698)

at com.tangosol.net.cache.ReadWriteBackingMap.get(ReadWriteBackingMap.java:717)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$Storage.get(PartitionedCache.CDB:10)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache.onGetRequest(PartitionedCache.CDB:23)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$GetRequest.run(PartitionedCache.CDB:1)

at com.tangosol.coherence.component.net.message.requestMessage.DistributedCacheKeyRequest.onReceived(DistributedCacheKeyRequest.CDB:12)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.onMessage(Grid.CDB:34)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.onNotify(Grid.CDB:33)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.PartitionedService.onNotify(PartitionedService.CDB:3)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache.onNotify(PartitionedCache.CDB:3)

at com.tangosol.coherence.component.util.Daemon.run(Daemon.CDB:42)

at java.lang.Thread.run(Thread.java:722)

]

ERROR 2013-09-20 09:06:42,515    :  [2013-09-20 09:06:42.515/8740.228 Oracle Coherence GE 3.7.1.0 <Error> (thread=DistributedCache, member=4): Assertion failed: poll() is a blocking call and cannot be called on the Service thread

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.poll(Grid.CDB:5)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.poll(Grid.CDB:11)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$BinaryMap.get(PartitionedCache.CDB:26)

at com.tangosol.util.ConverterCollections$ConverterMap.get(ConverterCollections.java:1655)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$ViewMap.get(PartitionedCache.CDB:1)

at com.tangosol.coherence.component.util.SafeNamedCache.get(SafeNamedCache.CDB:1)

at com.thehartford.pi.core.referencedata.dao.cachedaoimpl.ReferenceCacheDAOImpl.getReferenceData(Unknown Source)

at com.thehartford.pi.core.caching.cachestore.ReferenceCacheStore.load(Unknown Source)

at com.tangosol.net.cache.ReadWriteBackingMap$CacheLoaderCacheStore.load(ReadWriteBackingMap.java:6132)

at com.tangosol.net.cache.ReadWriteBackingMap$CacheStoreWrapper.loadInternal(ReadWriteBackingMap.java:5616)

at com.tangosol.net.cache.ReadWriteBackingMap$StoreWrapper.load(ReadWriteBackingMap.java:4698)

at com.tangosol.net.cache.ReadWriteBackingMap.get(ReadWriteBackingMap.java:717)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$Storage.get(PartitionedCache.CDB:10)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache.onGetRequest(PartitionedCache.CDB:23)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache$GetRequest.run(PartitionedCache.CDB:1)

at com.tangosol.coherence.component.net.message.requestMessage.DistributedCacheKeyRequest.onReceived(DistributedCacheKeyRequest.CDB:12)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.onMessage(Grid.CDB:34)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.onNotify(Grid.CDB:33)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.PartitionedService.onNotify(PartitionedService.CDB:3)

at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.partitionedService.PartitionedCache.onNotify(PartitionedCache.CDB:3)

          at com.tangosol.coherence.component.util.Daemon.run(Daemon.CDB:42)

Comments

Seberg
Here a doc:

Manual Standby Database under Oracle Standard Edition

http://www.databasejournal.com/features/oracle/article.php/3682421/Manual-Standby-Database-under-Oracle-Standard-Edition.htm
Aman....
Answer
SANCHIT GUPTA wrote:
Hi experts,

i want to create standby database on 11gR2 standard edition one on both environment linux to linux and window to window. i have invested my 4-5 days on that but i didn't able to create, due to standard edition. plz provide me step by step creation. it wil bel great help.....

Did you have a look at the dataguard docs,
http://docs.oracle.com/cd/E11882_01/server.112/e10700/standby.htm#i72073

Which has this mentioned quite clearly,
>
Oracle Data Guard is available only as a feature of Oracle Database Enterprise Edition. It is not available with Oracle Database Standard Edition.

Note:
It is possible to simulate a standby database environment with databases running Oracle Database Standard Edition. You can do this by manually transferring archived redo log files using an operating system copy utility or using custom scripts that periodically send archived redo log files from one database to the other. The consequence is that this configuration does not provide the ease-of-use, manageability, performance, and disaster-recovery capabilities available with Data Guard>

So if you want to have data guard, use Enterprise Edition.

Aman....
Marked as Answer by SANCHITGUPTA · Sep 27 2020
SANCHITGUPTA
i read that in standard edition we cant use data guard... data guard facility is available on enterprise edition
420678
Hello,

Data Guard is only available for Oracle Enterprise Edition. If you are using Oracle Standard edition, then there are 3rd party products that you can use as Data Guard alternatives. One such product is Dbvisit Standby. Read a review of Dbvisit Standby on oracle-base: http://www.oracle-base.com/articles/misc/dbvisit-standby.php

Regards,
Hemant K Chitale
Besides the external web sites, there is an Oracle Support note Alternative for standby database in standard edition [ID 333749.1]


Hemant K Chitale
SANCHITGUPTA
Plz can u provide me a link
SANCHITGUPTA
Still my problem is pending
Hemant K Chitale
333749.1 is the Article ID on https://support.oracle.com

Hemant K Chtale
SANCHITGUPTA
by the rman is possible to create standby database on standard edition one
kuljeet singh -
sanchit,
by the rman is possible to create standby database on standard edition one
you can create standby in standard edition but all major DG functionality will not available in this version ,See below detail


automatically redo apply is not possible in standard edition As Oracle Data Guard is available only as a feature of Oracle Database Enterprise Edition. It is not available with Oracle Database Standard Edition.
Note:
It is possible to simulate a standby database environment with databases running Oracle Database Standard Edition. You can do this by manually transferring archived redo log files using an operating system copy utility or using custom scripts that periodically send archived redo log files from one database to the other. The consequence is that this configuration does not provide the ease-of-use, manageability, performance, and disaster-recovery capabilities available with Data Guard

http://docs.oracle.com/cd/B28359_01/server.111/b28294/standby.htm#i72073
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Locked on Oct 21 2013
Added on Sep 20 2013
#coherence, #coherence-support
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