Lock issue with cluster

[valsaraj007]

Hi,

I have seen following error in log of a server in my domain mode cluster:

ERROR [org.infinispan.interceptors.InvocationContextInterceptor] (default task-9) ISPN000136: Execution error: org.infinispan.util.concurrent.TimeoutException: Unable to acquire lock after [15 seconds] on key [DfhYaYgkR9P_5qtyWnETnwQf] for requestor [GlobalTransaction:<node-10/web>:172:local]! Lock held by [GlobalTransaction:<node-10/web>:170:local]

Here is infinispan conf:

<subsystem xmlns="urn:jboss:domain:infinispan:2.0">

                <cache-container name="web" default-cache="passivation" module="org.wildfly.clustering.web.infinispan">

                    <local-cache name="passivation" batching="true">

                        <file-store passivation="true" purge="false"/>

                    </local-cache>

                    <local-cache name="persistent" batching="true">

                        <file-store passivation="false" purge="false"/>

                    </local-cache>

                </cache-container>

                <cache-container name="ejb" default-cache="passivation" module="org.wildfly.clustering.ejb.infinispan" aliases="sfsb">

                    <local-cache name="passivation" batching="true">

                        <file-store passivation="true" purge="false"/>

                    </local-cache>

                    <local-cache name="persistent" batching="true">

                        <file-store passivation="false" purge="false"/>

                    </local-cache>

                </cache-container>

                <cache-container name="hibernate" default-cache="local-query" module="org.hibernate">

                    <local-cache name="entity">

                        <transaction mode="NON_XA"/>

                        <eviction strategy="LRU" max-entries="10000"/>

                        <expiration max-idle="100000"/>

                    </local-cache>

                    <local-cache name="local-query">

                        <transaction mode="NONE"/>

                        <eviction strategy="LRU" max-entries="10000"/>

                        <expiration max-idle="100000"/>

                    </local-cache>

                    <local-cache name="timestamps">

                        <transaction mode="NONE"/>

                        <eviction strategy="NONE"/>

                    </local-cache>

                </cache-container>

            </subsystem>

What may be wrong? Is this harmful?

Thanks!

[ctomc]

This looks like ordinary cluster issue, noting to do with domain mode

[valsaraj007]

Thanksctomc!

I have checked the same with standalone mode and everything worked fine. This issue found when I started in domain mode. What is the reason for this issue?

[pferraro]

Looks like your application is attempting concurrent access to a specific web session by multiple threads.  This is disallowed for distributable sessions to enforce data integrity of the passivated/persistent/replicated state, hence the timeout.

[pferraro]

Just to say, I'm assuming the contention is from a request thread (there was no stack trace in your post).  The contention might also be from an expiration or eviction thread.  If so, this is harmless and you can ignore it.

[valsaraj007]

I found that when I set TimeOut to 120000 from 6000, there is no error.