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From Tolga Kavukcu <kavukcu.to...@gmail.com>
Subject Re: Blocked get operation problem
Date Thu, 24 Nov 2016 07:10:35 GMT
Hi Val,

Yes i access same key from all threads, even from all nodes probably 60000
access per second. For now i can't reach this tps with 56core x 3 server =
168 core. All get operations are made from servers. Seems like locking the
keys causes the problem. Cus i see lots of threads waiting for a lock on
get operation.

There are ~100 entries in the cache. This is our configuration. Can you see
any improvements on configuration.

<bean class="org.apache.ignite.configuration.CacheConfiguration" name="DEFAULT">
    <property name="atomicityMode" value="ATOMIC" />
    <property name="cacheMode" value="LOCAL" />
    <property name="memoryMode" value="OFFHEAP_TIERED" />
    <property name="affinity">
        <bean class="org.apache.ignite.cache.affinity.fair.FairAffinityFunction">
            <constructor-arg index="0" type="int" value="192"/>
        </bean>
    </property>
    <!-- max memory is set to 0 means unlimited -->
    <property name="offHeapMaxMemory" value="0" />
    <property name="writeThrough" value="false" />
    <property name="writeBehindEnabled" value="false" />
    <property name="eagerTtl" value="false"/>
</bean>


Previous provider was Chronicle-Map.

Thanks.

On Wed, Nov 23, 2016 at 9:24 PM, vkulichenko <valentin.kulichenko@gmail.com>
wrote:

> Tolga,
>
> Are you accessing the same key all the time? How many entries do you have
> in
> cache?
> What cache provider did you use before?
>
> -Val
>
>
>
> --
> View this message in context: http://apache-ignite-users.
> 70518.x6.nabble.com/Blocked-get-operation-problem-tp9133p9158.html
> Sent from the Apache Ignite Users mailing list archive at Nabble.com.
>



-- 

*Tolga KAVUKÇU*

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