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POWhy are these Hazelcast warnings appearing?
 

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  1. POWhy are these Hazelcast warnings appearing?
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    <p>I'm using Hazelcast to cache a JMS topic.</p> <p>Everything works great up to a point. After about 30-40 minutes of runtime I start getting :</p> <pre><code>WARNING: [192.168.3.102]:5701 [devGroup] RedoLog{key=Data{partitionHash=-1465305045} size= 10, operation=CONCURRENT_MAP_PUT_IF_ABSENT, target=Address[192.168.3.102]:5701, targetConnected=false, redoCount=910, migrating=null partition=Partition [186]{ 0:Address[192.168.3.102]:5701 } } </code></pre> <p>As much as I understood from reading dev forums these are Redo warnings meaning that Hazelcast can not connect to the specified instance <code>target=Address[192.168.3.102]:5701</code> to distribute the cache.</p> <p>The odd thing however is that my configuration has only one node, which is the current server instance:</p> <pre><code>INFO: [192.168.3.102]:5701 [devGroup] Members [1] { Member [192.168.3.102]:5701 this } </code></pre> <p>I'm using spring to configure it:</p> <pre><code>&lt;hz:hazelcast id="hazelcastInstance"&gt; &lt;hz:config&gt; &lt;hz:group name="devGroup" password="pass"/&gt; &lt;hz:properties&gt; &lt;hz:property name="hazelcast.merge.first.run.delay.seconds"&gt;5&lt;/hz:property&gt; &lt;hz:property name="hazelcast.merge.next.run.delay.seconds"&gt;5&lt;/hz:property&gt; &lt;/hz:properties&gt; &lt;hz:network port="5701" port-auto-increment="true"&gt; &lt;hz:join&gt; &lt;hz:multicast enabled="false" /&gt; &lt;hz:tcp-ip enabled="true"&gt; &lt;hz:members&gt;192.168.3.102&lt;/hz:members&gt; &lt;/hz:tcp-ip&gt; &lt;/hz:join&gt; &lt;hz:symmetric-encryption enabled="true" algorithm="PBEWithMD5AndDES" salt="thesalt" password="thepass" iteration-count="19"/&gt; &lt;hz:asymmetric-encryption enabled="false" key-password="thekeypass" key-alias="local" store-type="JKS" store-password="thestorepass" store-path="keystore"/&gt; &lt;/hz:network&gt; &lt;/hz:config&gt; &lt;/hz:hazelcast&gt; </code></pre> <p>I'm using Hazelcast 2.1, Spring 3.1 and Tomcat 7</p> <p>So does anyone know why I'm getting the warnings ?</p> <p>Thanks,</p> <hr> <p>To answer the comments:</p> <p>I use it like this:</p> <pre><code>final ConcurrentMap&lt;K, V&gt; cachedMap = getHazelcast().getMap(region); cachedMap.putIfAbsent(key, value); </code></pre> <p>The <code>getHazelcast()</code> method returns the injected <code>HazelcastInstance</code> via spring (the one in the configuration above, I've checked the bean id and it seems ok).</p> <hr> <p>Update 2.</p> <p>There is a max size on the map added programatically:</p> <pre><code>final MapConfig mapConfig = hazelcast.getConfig().getMapConfig(region); .... val is calculated here .... mapConfig.getMaxSizeConfig().setSize(val); </code></pre> <p><code>val</code> can not be less then 25000</p> <p>I have tried without the size configuration however and I still get the warnings.</p> <p>I also use <code>map.values(SqlPredicate(""))</code> to get values by date.</p>
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    1. COcurious - which IP version is this - 4 or 6? Also, I am assuming your map store implementation (is using one) is not being called at this point - is that correct?
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    2. COIt is being called. I'm storing whatever arrives on the JMS topic in a hazelcast map and successfully for some time. After 30/40 minutes I start getting the warnings and nothing is stored anymore.
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    3. CODo you use any of IMap.lock(), IMap.lockMap() or Hazelcast transaction API? Or how do you use Hazelcast as a cache?
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