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Valentin Kulichenko commented on IGNITE-7662: --------------------------------------------- [~ruslangm], please report issues on user forum or StackOverflow (I see you already did for this one). Use Jira for actual bugs, improvements or features. Closing this ticket. > Slow event listener's work > -------------------------- > > Key: IGNITE-7662 > URL: https://issues.apache.org/jira/browse/IGNITE-7662 > Project: Ignite > Issue Type: Wish > Components: cache > Affects Versions: 2.2 > Reporter: Ruslan Gilemzyanov > Priority: Minor > > I wroted some code that can run Ignite server node and attached to it > EventListener. Then I putted 10 elements on the cache, and for each element > recorded a time difference between putting and catching. > *When I created one server node and put 10 elements in IgniteCache I've got > good results. For 10 elements it was:* > EventListener - diff between put and listener - 51 > EventListener - diff between put and listener - 2 > EventListener - Time diff between put and listener - 1 > EventListener - Time diff between put and listener - 1 > EventListener - Time diff between put and listener - 1 > EventListener - Time diff between put and listener - 2 > EventListener - Time diff between put and listener - 2 > EventListener - Time diff between put and listener - 2 > EventListener - Time diff between put and listener - 2 > EventListener - Time diff between put and listener - 1 > *The results were the same when I added one node* (Topology snapshot became: > [ver=2, servers=2, clients=0, CPUs=4, heap=3.6GB]). > *But when i applied setBackups(1) to IgniteCache the results became weird:* > EventListener - Time diff between put and listener - 573 > EventListener - Time diff between put and listener - 573 > EventListener - Time diff between put and listener - 570 > EventListener - Time diff between put and listener - 571 > EventListener - Time diff between put and listener - 571 > EventListener - Time diff between put and listener - 571 > EventListener - Time diff between put and listener - 571 > EventListener - Time diff between put and listener - 561 > EventListener - Time diff between put and listener - 560 > *My code for creating an IgniteCache and attaching to it event listener is > very simple:* > {code:java} > Ignite ignite = Ignition.start("ignite.xml")) > CacheConfiguration<String, Long> cfg = new CacheConfiguration<>(); > cfg.setCacheMode(CacheMode.PARTITIONED); > cfg.setAtomicityMode(CacheAtomicityMode.ATOMIC); > cfg.setWriteSynchronizationMode(CacheWriteSynchronizationMode.FULL_ASYNC); > cfg.setName("myCache"); > cfg.setBackups(1); > IgniteCache<String, Long> cache = ignite.getOrCreateCache(cfg); > ContinuousQuery<String, Long> query = new ContinuousQuery<>(); > query.setLocalListener(new EventListener()); > query.setLocal(true); > QueryCursor<Cache.Entry<String, Long>> cursor = cache.query(query); > {code} > In my listener I just print this message: > EventListener - diff between put and listener > You can look at it on [github|https://github.com/ruslangm/ignite-sample], it > is really so simple. > Is Ignite really so slow in listening events when there are exist backups? -- This message was sent by Atlassian JIRA (v7.6.3#76005)