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From pradeepchanumolu <pradeepb...@gmail.com>
Subject Number of Caches
Date Thu, 05 Oct 2017 23:34:30 GMT
Hi, Can someone help me with this question? 

1) Is there any limit on how many caches I can create in Ignite Grid? 
The reason I am asking this question is because I have a huge Ignite Grid
(capacity ~3.5TB Memory) launched on Apache Yarn and I am trying to create
like 3K caches with the ignite-client running locally and after 1K caches I
am hitting this in the client. 

*Failed to wait for initial partition map exchange. Possible reasons are:
  ^-- Transactions in deadlock.
  ^-- Long running transactions (ignore if this is the case).
  ^-- Unreleased explicit locks.*

The only operation I am doing is creating caches

In the server Logs I find this error: 

java.lang.ClassCastException: java.util.UUID cannot be cast to
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap
        at
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap.equals(GridDhtPartitionMap.java:295)
        at java.util.HashMap.getNode(HashMap.java:571)
        at java.util.HashMap.containsKey(HashMap.java:595)
        at
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtPartitionTopologyImpl.update(GridDhtPartitionTopologyImpl.java:1158)
        at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.processFullPartitionUpdate(GridCachePartitionExchangeManager.java:1334)
        at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.access$1000(GridCachePartitionExchangeManager.java:125)
        at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$3.onMessage(GridCachePartitionExchangeManager.java:297)
        at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$3.onMessage(GridCachePartitionExchangeManager.java:295)
        at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$MessageHandler.apply(GridCachePartitionExchangeManager.java:2243)
        at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$MessageHandler.apply(GridCachePartitionExchangeManager.java:2225)
        at
org.apache.ignite.internal.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:1042)
        at
org.apache.ignite.internal.processors.cache.GridCacheIoManager.onMessage0(GridCacheIoManager.java:561)
        at
org.apache.ignite.internal.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:378)
        at
org.apache.ignite.internal.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:304)
        at
org.apache.ignite.internal.processors.cache.GridCacheIoManager.access$100(GridCacheIoManager.java:99)
        at
org.apache.ignite.internal.processors.cache.GridCacheIoManager$1.onMessage(GridCacheIoManager.java:293)
        at
org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1556)
        at
org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:1184)
        at
org.apache.ignite.internal.managers.communication.GridIoManager.access$4200(GridIoManager.java:126)
        at
org.apache.ignite.internal.managers.communication.GridIoManager$9.run(GridIoManager.java:1097)
        at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)





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