Async or write-behind is not working.

[xenthik]

There is no way to enable Aync mode/write-behind through API or XML configuration. is infinispan-cachestore-mongodb doen't support.

[tristantarrant]

https://issues.jboss.org/browse/ISPN-6715 and #15

[xenthik]

One thing i am trying to figure out the difference in putAsync and org.infinispan.configuration.cache.AsyncStoreConfiguration, even if it always shows AsyncStoreConfiguration.ENABLED is false. But putAsync is works like write-behind. is there any relationship between putAsync and AsyncStoreConfiguration ?

[tristantarrant]

cache.putAsync() will asynchronously put the entry into the cache. The following should help you understand:
put() to a persistent write-through cache (i.e. write-behind disabled): writes to both memory and to the cache store before returning
put() to a persistent write-behind cache: writes to memory and returns. Writing to the cache store is performed asynchronously on a separate thread.
putAsync() to a persistent write-through cache (i.e. write-behind disabled): returns immediately. Writes to both memory and to the cache store happen on a single separate thread.
putAsync() to a persistent write-behind cache: returns immediately. Writes to memory and to the cache store is performed asynchronously on two separate threads.

[xenthik]

How can i enable(use) write-behind through API ? my configurations looks like following?

AsyncStoreConfiguration asyncStore =
p.addStore(MongoDBStoreConfigurationBuilder.class).ignoreModifications(false)
.purgeOnStartup(false)
.fetchPersistentState(true)
.preload(true)
.connectionURI("mongodb://" + hostname + ":" + port + "/" + DATABASE + "?connectTimeoutMS=1000&w=1")
.collection(COLLECTION)
.create()
.async();
System.out.println(asyncStore.enabled()); // this gives false.
config = b.build();

[tristantarrant]

See https://github.com/infinispan/infinispan-cachestore-mongodb/blob/master/src/test/java/org/infinispan/persistence/mongodb/configuration/MongoDBStoreConfigurationBuilderTest.java#L28

[galderz]

This is now fixed, closing.

[xenthik]

Configuration conf = builder
.persistence()
.addStore(MongoDBStoreConfigurationBuilder.class)
.connectionURI(CONNECTION_URI)
.collection(COLLECTION)
.async().enable()
.build();

In MongoDBStoreConfigurationBuilderTest.java, follwoing test is getting failed , Why ? assertTrue(conf.persistence().fetchPersistentState());

[xenthik]

Even if I have following configurations
<persistence passivation="false"> <mongodbStore xmlns="urn:infinispan:config:store:mongodb:8.2" **_shared="true" preload="true" fetch-state="true" purge="false" singleton="true"_**> <connection uri="mongodb://mongoUser:mongoPass@localhost:27017/infinispan_test_database?w=0&amp;connectTimeoutMS=2000" collection="infinispan_cachestore"/> <write-behind /> </mongodbStore> </persistence>

List stores give the following output against the configuration:
[AbstractStoreConfiguration [attributes=[shared=false, ignoreModifications=false, fetchPersistentState=false, purgeOnStartup=false, preload=false, properties={}], async=AsyncStoreConfiguration [attributes=[enabled=false, modificationQueueSize=1024, threadPoolSize=1]], singletonStore=SingletonStoreConfiguration [attributes=[pushStateWhenCoordinator=true, pushStateTimeout=10000, enabled=false]]]]

[tristantarrant]

Running mvn clean install from master
Results :
Tests run: 14, Failures: 0, Errors: 0, Skipped: 0

How are you running it ?
I plan to do a release this week.