Clustered Query fail when hibernate search not fully initialized

Hi,

I'm running into this issue when doing a clustered query in distribution mode :

org.infinispan.CacheException: org.hibernate.search.SearchException: Not a mapped entity (don't forget to add @Indexed): class com.XXX.Client
at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:166)
at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:181)
at org.infinispan.query.clustered.ClusteredQueryInvoker.broadcast(ClusteredQueryInvoker.java:113)
at org.infinispan.query.clustered.ClusteredCacheQueryImpl.broadcastQuery(ClusteredCacheQueryImpl.java:115)
at org.infinispan.query.clustered.ClusteredCacheQueryImpl.iterator(ClusteredCacheQueryImpl.java:90)
at org.infinispan.query.impl.CacheQueryImpl.iterator(CacheQueryImpl.java:129)
at org.infinispan.query.clustered.ClusteredCacheQueryImpl.list(ClusteredCacheQueryImpl.java:133)
at com.XXX.DistributedCache.cacheQueryList(DistributedCache.java:313)
at com.XXX.DistributedCache.cacheQueryList(DistributedCache.java:274)
at com.XXX.ClientCache.getClientsByServerId(ClientCache.java:127)
at com.XXX.ClientManager.getClientsByServerId(ClientManager.java:157)
at com.XXX$PingClient.run(PlayerBll.java:890)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: org.hibernate.search.SearchException: Not a mapped entity (don't forget to add @Indexed): class com.XXX.Client
at org.hibernate.search.query.engine.impl.HSQueryImpl.buildSearcher(HSQueryImpl.java:549)
at org.hibernate.search.query.engine.impl.HSQueryImpl.buildSearcher(HSQueryImpl.java:493)
at org.hibernate.search.query.engine.impl.HSQueryImpl.queryDocumentExtractor(HSQueryImpl.java:292)
at org.infinispan.query.clustered.commandworkers.CQCreateEagerQuery.perform(CQCreateEagerQuery.java:44)
at org.infinispan.query.clustered.ClusteredQueryCommand.perform(ClusteredQueryCommand.java:135)
at org.infinispan.query.clustered.ClusteredQueryCommand.perform(ClusteredQueryCommand.java:129)
at org.infinispan.remoting.InboundInvocationHandlerImpl.handleInternal(InboundInvocationHandlerImpl.java:170)
at org.infinispan.remoting.InboundInvocationHandlerImpl.handleWithWaitForBlocks(InboundInvocationHandlerImpl.java:179)
at org.infinispan.remoting.InboundInvocationHandlerImpl.handleWithRetry(InboundInvocationHandlerImpl.java:208)
at org.infinispan.remoting.InboundInvocationHandlerImpl.handle(InboundInvocationHandlerImpl.java:156)
at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.executeCommand(CommandAwareRpcDispatcher.java:162)
at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.handle(CommandAwareRpcDispatcher.java:141)
at org.jgroups.blocks.RequestCorrelator.handleRequest(RequestCorrelator.java:447)
at org.jgroups.blocks.RequestCorrelator.receiveMessage(RequestCorrelator.java:354)
at org.jgroups.blocks.RequestCorrelator.receive(RequestCorrelator.java:230)
at org.jgroups.blocks.MessageDispatcher$ProtocolAdapter.up(MessageDispatcher.java:556)
at org.jgroups.JChannel.up(JChannel.java:716)
at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:1026)
at org.jgroups.protocols.FRAG2.up(FRAG2.java:181)
at org.jgroups.protocols.FlowControl.up(FlowControl.java:418)
at org.jgroups.protocols.FlowControl.up(FlowControl.java:418)
at org.jgroups.protocols.pbcast.GMS.up(GMS.java:881)
at org.jgroups.protocols.pbcast.StreamingStateTransfer.up(StreamingStateTransfer.java:262)
at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:244)
at org.jgroups.protocols.UNICAST.up(UNICAST.java:332)
at org.jgroups.protocols.pbcast.NAKACK.handleMessage(NAKACK.java:700)
at org.jgroups.protocols.pbcast.NAKACK.up(NAKACK.java:561)
at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:140)
at org.jgroups.protocols.FD.up(FD.java:273)
at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:284)
at org.jgroups.protocols.MERGE2.up(MERGE2.java:205)
at org.jgroups.protocols.Discovery.up(Discovery.java:354)
at org.jgroups.protocols.TP.passMessageUp(TP.java:1174)
at org.jgroups.protocols.TP$IncomingPacket.handleMyMessage(TP.java:1709)
at org.jgroups.protocols.TP$IncomingPacket.run(TP.java:1691)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)

With the use of the following

cache configuration :
<infinispan xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:infinispan:config:5.1 http://www.infinispan.org/schemas/infinispan-config-5.1.xsd"
xmlns="urn:infinispan:config:5.1">

<global>
<transport clusterName="XXX-cluster" machineId="XXX" siteId="XXX" rackId="XXX" distributedSyncTimeout="15000">
<properties>
<property name="configurationFile" value="jgroups-jdbc-ping.xml" />
</properties>
</transport>
</global>

<default>
<transaction
cacheStopTimeout="30000"
transactionManagerLookupClass="org.infinispan.transaction.lookup.DummyTransactionManagerLookup"
lockingMode="PESSIMISTIC"
useSynchronization="true"
transactionMode="TRANSACTIONAL"
syncCommitPhase="true"
syncRollbackPhase="false"
>
<recovery enabled="false" />
</transaction>
<clustering mode="local" />
<indexing enabled="true" indexLocalOnly="true">
<properties>
<property name="hibernate.search.default.directory_provider" value="ram" />
</properties>
</indexing>
</default>

<namedCache name="XXX-Client">
<transaction
cacheStopTimeout="30000"
transactionManagerLookupClass="org.infinispan.transaction.lookup.DummyTransactionManagerLookup"
lockingMode="PESSIMISTIC"
useSynchronization="true"
transactionMode="TRANSACTIONAL"
syncCommitPhase="true"
syncRollbackPhase="false"
>
<recovery enabled="false" />
</transaction>
<invocationBatching enabled="false" />
<loaders passivation="false" />
<clustering mode="distribution" >
<sync replTimeout="15000" />
<stateRetrieval
timeout="240000"
retryWaitTimeIncreaseFactor="2"
numRetries="5"
maxNonProgressingLogWrites="100"

fetchInMemoryState="false"
logFlushTimeout="60000"
alwaysProvideInMemoryState="false"
/>
</clustering>
<storeAsBinary enabled="false" storeValuesAsBinary="true" storeKeysAsBinary="true" />
<deadlockDetection enabled="true" spinDuration="100" />
<eviction strategy="NONE" threadPolicy="PIGGYBACK" maxEntries="-1" />
<jmxStatistics enabled="true" />
<locking writeSkewCheck="false" lockAcquisitionTimeout="10000" isolationLevel="READ_COMMITTED" useLockStriping="false" concurrencyLevel="32" />
<expiration wakeUpInterval="60000" lifespan="-1" maxIdle="3000000" />
</namedCache>
</infinispan>

and jgroups configuration :
<config xmlns="urn:org:jgroups"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:org:jgroups file:schema/JGroups-3.0.xsd">
<TCP
bind_port="7800"
loopback="true"
port_range="30"
recv_buf_size="20000000"
send_buf_size="640000"
discard_incompatible_packets="true"
max_bundle_size="64000"
max_bundle_timeout="30"
enable_bundling="true"
use_send_queues="true"
sock_conn_timeout="300"
enable_diagnostics="false"

thread_pool.enabled="true"
thread_pool.min_threads="2"
thread_pool.max_threads="30"
thread_pool.keep_alive_time="5000"
thread_pool.queue_enabled="false"
thread_pool.queue_max_size="100"
thread_pool.rejection_policy="Discard"

oob_thread_pool.enabled="true"
oob_thread_pool.min_threads="2"
oob_thread_pool.max_threads="30"
oob_thread_pool.keep_alive_time="5000"
oob_thread_pool.queue_enabled="false"
oob_thread_pool.queue_max_size="100"
oob_thread_pool.rejection_policy="Discard"
/>

<JDBC_PING
connection_url="jdbc:jtds:sqlserver://XXX;databaseName=XXX"
connection_username="XXX"
connection_password="XXX"
connection_driver="net.sourceforge.jtds.jdbcx.JtdsDataSource"
initialize_sql=""
/>

<MERGE2 max_interval="30000"
min_interval="10000"/>
<FD_SOCK/>
<FD timeout="3000" max_tries="3"/>
<VERIFY_SUSPECT timeout="1500"/>
<pbcast.NAKACK
use_mcast_xmit="false"
retransmit_timeout="300,600,1200,2400,4800"
discard_delivered_msgs="false"/>
<UNICAST timeout="300,600,1200"/>
<pbcast.STABLE stability_delay="1000" desired_avg_gossip="50000"
max_bytes="400000"/>
<pbcast.STATE />
<pbcast.GMS print_local_addr="false" join_timeout="7000" view_bundling="true"/>
<UFC max_credits="2000000" min_threshold="0.10"/>
<MFC max_credits="2000000" min_threshold="0.10"/>
<FRAG2 frag_size="60000"/>
</config>

Tough my entity is well annotated.

Here's the steps to reproduce :
1. boot node A completly.
2. boot node B, make all caches start (DefaultCacheManager::startCaches(...)), then breakpoint just after.
3. on node A, do a clustered query.
4. node A fail because node b has not been fully initialized.

Here's how I do my query :
private CacheQuery getClusteredNonClusteredQuery(Query query)
{
CacheQuery cacheQuery;
if (useClusteredQuery)

{ cacheQuery = searchManager.getClusteredQuery(query, cacheValueClass); }

else

{ cacheQuery = searchManager.getQuery(query, cacheValueClass); }

return cacheQuery;
}

I've tried also without supplying any "cacheValueClass" without any success.

One ugly "workaround" I've found is, to as soon as possible in the application, to force the local insertion and removal of one dummy key and value to force initialization of the search manager like :
cache.getAdvancedCache().withFlags(Flag.CACHE_MODE_LOCAL).put("XXX", new Client("XXX");
cache.getAdvancedCache().withFlags(Flag.CACHE_MODE_LOCAL).remove("XXX");

Tough this technique won't still garanty me that any clustered query will occur before.

I think the issue this might as well be related to issue : ISPN-627 Provision to get Cache from CacheManager.

Any idea or workaround ? Do you think by just adding a try catch and return an empty list could "fix" the problem ?

EDIT :
I've added a try catch inside org.infinispan.query.clustered.commandworkers.CQCreateEagerQuery::perform()
@Override
public QueryResponse perform() {
query.afterDeserialise((SearchFactoryImplementor) getSearchFactory());
try

{ DocumentExtractor extractor = query.queryDocumentExtractor(); int resultSize = query.queryResultSize(); ISPNEagerTopDocs eagerTopDocs = collectKeys(extractor); QueryResponse queryResponse = new QueryResponse(eagerTopDocs, getQueryBox().getMyId(), resultSize); queryResponse.setAddress(cache.getAdvancedCache().getRpcManager() .getAddress()); return queryResponse; }

catch (SearchException e)

{ QueryResponse queryResponse = new QueryResponse(new ISPNEagerTopDocs(), getQueryBox().getMyId(), 0); queryResponse.setAddress(cache.getAdvancedCache().getRpcManager().getAddress()); return queryResponse; }

}

And made a default constructor in org.infinispan.query.clustered.ISPNEagerTopDocs
public ISPNEagerTopDocs()

{ super(0, new ScoreDoc[0], 0); this.keys = new Object[0]; }

Swallowing the exception appear to be a "good" workaround.

Thanks a lot,