Tuesday, 04 September 2012

Speeding up Cache calls with IGNORE_RETURN_VALUES invocation flag

Starting with Infinispan 5.2.0.Alpha3, a new Infinispan invocation flag has been added called IGNORE_RETURN_VALUES.

This flag signals that the client that calls an Infinispan Cache operation () which has some kind of return, i.e. java.util.Map#put(Object, Object) (remember that Infinispan’s Cache interface extends java.util.Map), the return value (which in the case of java.util.Map#put(Object, Object) represents the previous value) will be ignored by the client application. A typical client application that ignores the return value would use code like this:

In this example, both cache put call are ignoring the return of the put call, which returns the previous value. In other words, when we cache the last login date, we don’t care what the previous value was, so this is a great opportunity for the client code to be re-written in this way:

Or even better:

Thanks to such hints, Infinispan caches can behave in a more efficient way and can potentially do operations faster, because work associated with the production of the return value will be skipped. Such work can on occasions involve network calls, or access to persistent cache stores, so by avoiding this work, the cache calls are effectively faster.

In previous Infinispan versions, a similar effect could be achieved with flags with a narrower target and which are considered too brittle for end user consumption such as SKIP_REMOTE_LOOKUP or SKIP_CACHE_LOAD. So, if you’re using either of these flags in your Infinispan client codebase, we highly recommend that from Infinispan 5.2.0.Alpha3 you start using IGNORE_RETURN_VALUES instead.

Cheers, Galder

Posted by Galder Zamarreño on 2012-09-04
Tags: flags performance

News

Tags

JUGs alpha as7 asymmetric clusters asynchronous beta c++ cdi chat clustering community conference configuration console data grids data-as-a-service database devoxx distributed executors docker event functional grouping and aggregation hotrod infinispan java 8 jboss cache jcache jclouds jcp jdg jpa judcon kubernetes listeners meetup minor release off-heap openshift performance presentations product protostream radargun radegast recruit release release 8.2 9.0 final release candidate remote query replication queue rest query security spring streams transactions vert.x workshop 8.1.0 API DSL Hibernate-Search Ickle Infinispan Query JP-QL JSON JUGs JavaOne LGPL License NoSQL Open Source Protobuf SCM administration affinity algorithms alpha amazon annotations announcement archetype archetypes as5 as7 asl2 asynchronous atomic maps atomic objects availability aws beer benchmark benchmarks berkeleydb beta beta release blogger book breizh camp buddy replication bugfix c# c++ c3p0 cache benchmark framework cache store cache stores cachestore cassandra cdi cep certification cli cloud storage clustered cache configuration clustered counters clustered locks codemotion codename colocation command line interface community comparison compose concurrency conference conferences configuration console counter cpp-client cpu creative cross site replication csharp custom commands daas data container data entry data grids data structures data-as-a-service deadlock detection demo deployment dev-preview devnation devoxx distributed executors distributed queries distribution docker documentation domain mode dotnet-client dzone refcard ec2 ehcache embedded query equivalence event eviction example externalizers failover faq final fine grained flags flink full-text functional future garbage collection geecon getAll gigaspaces git github gke google graalvm greach conf gsoc hackergarten hadoop hbase health hibernate hibernate ogm hibernate search hot rod hotrod hql http/2 ide index indexing india infinispan infinispan 8 infoq internationalization interoperability interview introduction iteration javascript jboss as 5 jboss asylum jboss cache jbossworld jbug jcache jclouds jcp jdbc jdg jgroups jopr jpa js-client jsr 107 jsr 347 jta judcon kafka kubernetes lambda language leveldb license listeners loader local mode lock striping locking logging lucene mac management map reduce marshalling maven memcached memory migration minikube minishift minor release modules mongodb monitoring multi-tenancy nashorn native near caching netty node.js nodejs nosqlunit off-heap openshift operator oracle osgi overhead paas paid support partition handling partitioning performance persistence podcast presentations protostream public speaking push api putAll python quarkus query quick start radargun radegast react reactive red hat redis rehashing releaase release release candidate remote remote events remote query replication rest rest query roadmap rocksdb ruby s3 scattered cache scripting second level cache provider security segmented server shell site snowcamp spark split brain spring spring boot spring-session stable standards state transfer statistics storage store store by reference store by value streams substratevm synchronization syntax highlighting testing tomcat transactions uneven load user groups user guide vagrant versioning vert.x video videos virtual nodes vote voxxed voxxed days milano wallpaper websocket websockets wildfly workshop xsd xsite yarn zulip

back to top