[infinispan-issues] [JBoss JIRA] (ISPN-5962) Implementation of RpcManagerImpl.invokeRemotely causes high CPU usage

[Sanne Grinovero (JIRA)]

Sanne Grinovero created ISPN-5962:
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             Summary: Implementation of RpcManagerImpl.invokeRemotely causes high CPU usage
                 Key: ISPN-5962
                 URL: https://issues.jboss.org/browse/ISPN-5962
             Project: Infinispan
          Issue Type: Enhancement
          Components: Core
    Affects Versions: 8.1.0.Beta1
            Reporter: Sanne Grinovero


The method {{org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(Collection<Address>, ReplicableCommand, RpcOptions)}} is implemented by blocking on a {{CompletableFuture}}, but this then stalls on {{java.util.concurrent.CompletableFuture.waitingGet(boolean)}} by spending a significant amount of CPU time by spinning.

When implementing RPC calls and having to wait for remote operations, spinning is probably not a good idea. Could we try implementing this in some way to hint towards a more pessimistic lock?



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