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Posted to user@ignite.apache.org by Eduardo Julian <ed...@bontix.com> on 2016/04/24 00:53:16 UTC
java.lang.OutOfMemoryError in normal Ignite usage
Hi, everyone.
I started a program 3 days ago on a server with 1GB RAM.
Everything was running smoothly until a couple of hours ago, when the
service wasn't responding.
When we go check the logs, there is an OOMError with an Ignite stack-trace
tagging along.
All that I store on that server is stored on Ignite (with read-through and
write-through to a MySQL DB).
It's fairly light stuff, just some objects with 10+ fields, and it's just 1
cache right now.
However, in the logs, the bulk of the operations preceding the OOM error
were read-operations that neither created nor updated the data on Ignite.
Just performed some queries.
And yet, for some reason, there was a HashMap being updated somewhere,
which triggered the OOM error.
Check it out:
Apr 23, 2016 4:35:44 PM org.apache.ignite.logger.java.JavaLogger error
SEVERE: Caught unhandled exception in NIO worker thread (restart the node).
java.lang.OutOfMemoryError: Java heap space
at java.util.HashMap$KeySet.iterator(HashMap.java:912)
at java.util.HashSet.iterator(HashSet.java:172)
at
java.util.Collections$UnmodifiableCollection$1.<init>(Collections.java:1039)
at
java.util.Collections$UnmodifiableCollection.iterator(Collections.java:1038)
at
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.checkIdle(GridNioServer.java:1489)
at
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:1406)
at
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1280)
at
org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at java.lang.Thread.run(Thread.java:745)
Apr 23, 2016 4:35:45 PM org.apache.ignite.logger.java.JavaLogger error
SEVERE: Runtime error caught during grid runnable execution: GridWorker
[name=grid-nio-worker-0, gridName=null, finished=false, isCancelled=false,
hashCode=1645791145, interrupted=false, runner=grid-nio-worker-0-#40%null%]
java.lang.OutOfMemoryError: Java heap space
at java.util.HashMap$KeySet.iterator(HashMap.java:912)
at java.util.HashSet.iterator(HashSet.java:172)
at
java.util.Collections$UnmodifiableCollection$1.<init>(Collections.java:1039)
at
java.util.Collections$UnmodifiableCollection.iterator(Collections.java:1038)
at
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.checkIdle(GridNioServer.java:1489)
at
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:1406)
at
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1280)
at
org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at java.lang.Thread.run(Thread.java:745)
Apr 23, 2016 4:35:46 PM org.apache.ignite.logger.java.JavaLogger error
SEVERE: Runtime error caught during grid runnable execution: GridWorker
[name=partition-exchanger, gridName=null, finished=false,
isCancelled=false, hashCode=685490869, interrupted=false,
runner=exchange-worker-#45%null%]
java.lang.OutOfMemoryError: Java heap space
at java.util.HashMap.newNode(HashMap.java:1734)
at java.util.HashMap.putVal(HashMap.java:630)
at java.util.HashMap.put(HashMap.java:611)
at
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap2.put(GridDhtPartitionMap2.java:112)
at
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap2.<init>(GridDhtPartitionMap2.java:96)
at
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionFullMap.<init>(GridDhtPartitionFullMap.java:107)
at
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtPartitionTopologyImpl.partitionMap(GridDhtPartitionTopologyImpl.java:841)
at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.sendAllPartitions(GridCachePartitionExchangeManager.java:747)
at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.refreshPartitions(GridCachePartitionExchangeManager.java:698)
at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.refreshPartitions(GridCachePartitionExchangeManager.java:724)
at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.access$1600(GridCachePartitionExchangeManager.java:107)
at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:1267)
at
org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at java.lang.Thread.run(Thread.java:745)
Exception in thread "exchange-worker-#45%null%" Exception in thread
"grid-nio-worker-0-#40%null%" java.lang.OutOfMemoryError: Java heap space
at java.util.HashMap.newNode(HashMap.java:1734)
at java.util.HashMap.putVal(HashMap.java:630)
at java.util.HashMap.put(HashMap.java:611)
at
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap2.put(GridDhtPartitionMap2.java:112)
at
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap2.<init>(GridDhtPartitionMap2.java:96)
at
org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionFullMap.<init>(GridDhtPartitionFullMap.java:107)
at
org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtPartitionTopologyImpl.partitionMap(GridDhtPartitionTopologyImpl.java:841)
at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.sendAllPartitions(GridCachePartitionExchangeManager.java:747)
at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.refreshPartitions(GridCachePartitionExchangeManager.java:698)
at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.refreshPartitions(GridCachePartitionExchangeManager.java:724)
at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.access$1600(GridCachePartitionExchangeManager.java:107)
at
org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:1267)
at
org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at java.lang.Thread.run(Thread.java:745)
java.lang.OutOfMemoryError: Java heap space
at java.util.HashMap$KeySet.iterator(HashMap.java:912)
at java.util.HashSet.iterator(HashSet.java:172)
at
java.util.Collections$UnmodifiableCollection$1.<init>(Collections.java:1039)
at
java.util.Collections$UnmodifiableCollection.iterator(Collections.java:1038)
at
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.checkIdle(GridNioServer.java:1489)
at
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:1406)
at
org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1280)
at
org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at java.lang.Thread.run(Thread.java:745)
---------------------------------------------------
I'm mostly using the default configuration for the cache.
I don't know if maybe I might be missing something to get the most out of
Ignite.
Any tips and suggestions are welcome, as I cannot have Ignite dying on me
(specially after just 3 days).
Thanks in advance.
Re: java.lang.OutOfMemoryError in normal Ignite usage
Posted by Dmitriy Setrakyan <ds...@apache.org>.
1GB of heap is generally very small. The memory issue may or may not be
related to Ignite. I would suggest increasing the heap size and check the
heap graphs in any profiler, to make sure that it is not constantly growing
without being reclaimed. If it is, then I would check which objects are the
culprit - profiler provides this information.
On Mon, Apr 25, 2016 at 4:20 AM, Vladimir Ozerov <vo...@gridgain.com>
wrote:
> Hi,
>
> Most probably, you just have insufficient heap, as queries require some
> heap space during execution. Probably you should give your node more heap
> and monitor it for some. If all is fine, you will see a saw-like pattern -
> when memory is allocated and then release. If there is a leak, you will see
> constant heap growth.
>
> Vladimir.
>
> On Sun, Apr 24, 2016 at 1:53 AM, Eduardo Julian <ed...@bontix.com>
> wrote:
>
>> Hi, everyone.
>>
>> I started a program 3 days ago on a server with 1GB RAM.
>>
>> Everything was running smoothly until a couple of hours ago, when the
>> service wasn't responding.
>> When we go check the logs, there is an OOMError with an Ignite
>> stack-trace tagging along.
>>
>> All that I store on that server is stored on Ignite (with read-through
>> and write-through to a MySQL DB).
>> It's fairly light stuff, just some objects with 10+ fields, and it's just
>> 1 cache right now.
>>
>> However, in the logs, the bulk of the operations preceding the OOM error
>> were read-operations that neither created nor updated the data on Ignite.
>> Just performed some queries.
>>
>> And yet, for some reason, there was a HashMap being updated somewhere,
>> which triggered the OOM error.
>>
>> Check it out:
>>
>> Apr 23, 2016 4:35:44 PM org.apache.ignite.logger.java.JavaLogger error
>> SEVERE: Caught unhandled exception in NIO worker thread (restart the
>> node).
>> java.lang.OutOfMemoryError: Java heap space
>> at java.util.HashMap$KeySet.iterator(HashMap.java:912)
>> at java.util.HashSet.iterator(HashSet.java:172)
>> at
>> java.util.Collections$UnmodifiableCollection$1.<init>(Collections.java:1039)
>> at
>> java.util.Collections$UnmodifiableCollection.iterator(Collections.java:1038)
>> at
>> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.checkIdle(GridNioServer.java:1489)
>> at
>> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:1406)
>> at
>> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1280)
>> at
>> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
>> at java.lang.Thread.run(Thread.java:745)
>>
>> Apr 23, 2016 4:35:45 PM org.apache.ignite.logger.java.JavaLogger error
>> SEVERE: Runtime error caught during grid runnable execution: GridWorker
>> [name=grid-nio-worker-0, gridName=null, finished=false, isCancelled=false,
>> hashCode=1645791145, interrupted=false, runner=grid-nio-worker-0-#40%null%]
>> java.lang.OutOfMemoryError: Java heap space
>> at java.util.HashMap$KeySet.iterator(HashMap.java:912)
>> at java.util.HashSet.iterator(HashSet.java:172)
>> at
>> java.util.Collections$UnmodifiableCollection$1.<init>(Collections.java:1039)
>> at
>> java.util.Collections$UnmodifiableCollection.iterator(Collections.java:1038)
>> at
>> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.checkIdle(GridNioServer.java:1489)
>> at
>> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:1406)
>> at
>> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1280)
>> at
>> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
>> at java.lang.Thread.run(Thread.java:745)
>>
>> Apr 23, 2016 4:35:46 PM org.apache.ignite.logger.java.JavaLogger error
>> SEVERE: Runtime error caught during grid runnable execution: GridWorker
>> [name=partition-exchanger, gridName=null, finished=false,
>> isCancelled=false, hashCode=685490869, interrupted=false,
>> runner=exchange-worker-#45%null%]
>> java.lang.OutOfMemoryError: Java heap space
>> at java.util.HashMap.newNode(HashMap.java:1734)
>> at java.util.HashMap.putVal(HashMap.java:630)
>> at java.util.HashMap.put(HashMap.java:611)
>> at
>> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap2.put(GridDhtPartitionMap2.java:112)
>> at
>> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap2.<init>(GridDhtPartitionMap2.java:96)
>> at
>> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionFullMap.<init>(GridDhtPartitionFullMap.java:107)
>> at
>> org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtPartitionTopologyImpl.partitionMap(GridDhtPartitionTopologyImpl.java:841)
>> at
>> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.sendAllPartitions(GridCachePartitionExchangeManager.java:747)
>> at
>> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.refreshPartitions(GridCachePartitionExchangeManager.java:698)
>> at
>> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.refreshPartitions(GridCachePartitionExchangeManager.java:724)
>> at
>> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.access$1600(GridCachePartitionExchangeManager.java:107)
>> at
>> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:1267)
>> at
>> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
>> at java.lang.Thread.run(Thread.java:745)
>>
>> Exception in thread "exchange-worker-#45%null%" Exception in thread
>> "grid-nio-worker-0-#40%null%" java.lang.OutOfMemoryError: Java heap space
>> at java.util.HashMap.newNode(HashMap.java:1734)
>> at java.util.HashMap.putVal(HashMap.java:630)
>> at java.util.HashMap.put(HashMap.java:611)
>> at
>> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap2.put(GridDhtPartitionMap2.java:112)
>> at
>> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap2.<init>(GridDhtPartitionMap2.java:96)
>> at
>> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionFullMap.<init>(GridDhtPartitionFullMap.java:107)
>> at
>> org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtPartitionTopologyImpl.partitionMap(GridDhtPartitionTopologyImpl.java:841)
>> at
>> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.sendAllPartitions(GridCachePartitionExchangeManager.java:747)
>> at
>> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.refreshPartitions(GridCachePartitionExchangeManager.java:698)
>> at
>> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.refreshPartitions(GridCachePartitionExchangeManager.java:724)
>> at
>> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.access$1600(GridCachePartitionExchangeManager.java:107)
>> at
>> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:1267)
>> at
>> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
>> at java.lang.Thread.run(Thread.java:745)
>> java.lang.OutOfMemoryError: Java heap space
>> at java.util.HashMap$KeySet.iterator(HashMap.java:912)
>> at java.util.HashSet.iterator(HashSet.java:172)
>> at
>> java.util.Collections$UnmodifiableCollection$1.<init>(Collections.java:1039)
>> at
>> java.util.Collections$UnmodifiableCollection.iterator(Collections.java:1038)
>> at
>> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.checkIdle(GridNioServer.java:1489)
>> at
>> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:1406)
>> at
>> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1280)
>> at
>> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
>> at java.lang.Thread.run(Thread.java:745)
>>
>>
>>
>> ---------------------------------------------------
>>
>>
>> I'm mostly using the default configuration for the cache.
>> I don't know if maybe I might be missing something to get the most out of
>> Ignite.
>>
>> Any tips and suggestions are welcome, as I cannot have Ignite dying on me
>> (specially after just 3 days).
>>
>> Thanks in advance.
>>
>
>
Re: java.lang.OutOfMemoryError in normal Ignite usage
Posted by Vladimir Ozerov <vo...@gridgain.com>.
Hi,
Most probably, you just have insufficient heap, as queries require some
heap space during execution. Probably you should give your node more heap
and monitor it for some. If all is fine, you will see a saw-like pattern -
when memory is allocated and then release. If there is a leak, you will see
constant heap growth.
Vladimir.
On Sun, Apr 24, 2016 at 1:53 AM, Eduardo Julian <ed...@bontix.com>
wrote:
> Hi, everyone.
>
> I started a program 3 days ago on a server with 1GB RAM.
>
> Everything was running smoothly until a couple of hours ago, when the
> service wasn't responding.
> When we go check the logs, there is an OOMError with an Ignite stack-trace
> tagging along.
>
> All that I store on that server is stored on Ignite (with read-through and
> write-through to a MySQL DB).
> It's fairly light stuff, just some objects with 10+ fields, and it's just
> 1 cache right now.
>
> However, in the logs, the bulk of the operations preceding the OOM error
> were read-operations that neither created nor updated the data on Ignite.
> Just performed some queries.
>
> And yet, for some reason, there was a HashMap being updated somewhere,
> which triggered the OOM error.
>
> Check it out:
>
> Apr 23, 2016 4:35:44 PM org.apache.ignite.logger.java.JavaLogger error
> SEVERE: Caught unhandled exception in NIO worker thread (restart the node).
> java.lang.OutOfMemoryError: Java heap space
> at java.util.HashMap$KeySet.iterator(HashMap.java:912)
> at java.util.HashSet.iterator(HashSet.java:172)
> at
> java.util.Collections$UnmodifiableCollection$1.<init>(Collections.java:1039)
> at
> java.util.Collections$UnmodifiableCollection.iterator(Collections.java:1038)
> at
> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.checkIdle(GridNioServer.java:1489)
> at
> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:1406)
> at
> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1280)
> at
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
> at java.lang.Thread.run(Thread.java:745)
>
> Apr 23, 2016 4:35:45 PM org.apache.ignite.logger.java.JavaLogger error
> SEVERE: Runtime error caught during grid runnable execution: GridWorker
> [name=grid-nio-worker-0, gridName=null, finished=false, isCancelled=false,
> hashCode=1645791145, interrupted=false, runner=grid-nio-worker-0-#40%null%]
> java.lang.OutOfMemoryError: Java heap space
> at java.util.HashMap$KeySet.iterator(HashMap.java:912)
> at java.util.HashSet.iterator(HashSet.java:172)
> at
> java.util.Collections$UnmodifiableCollection$1.<init>(Collections.java:1039)
> at
> java.util.Collections$UnmodifiableCollection.iterator(Collections.java:1038)
> at
> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.checkIdle(GridNioServer.java:1489)
> at
> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:1406)
> at
> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1280)
> at
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
> at java.lang.Thread.run(Thread.java:745)
>
> Apr 23, 2016 4:35:46 PM org.apache.ignite.logger.java.JavaLogger error
> SEVERE: Runtime error caught during grid runnable execution: GridWorker
> [name=partition-exchanger, gridName=null, finished=false,
> isCancelled=false, hashCode=685490869, interrupted=false,
> runner=exchange-worker-#45%null%]
> java.lang.OutOfMemoryError: Java heap space
> at java.util.HashMap.newNode(HashMap.java:1734)
> at java.util.HashMap.putVal(HashMap.java:630)
> at java.util.HashMap.put(HashMap.java:611)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap2.put(GridDhtPartitionMap2.java:112)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap2.<init>(GridDhtPartitionMap2.java:96)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionFullMap.<init>(GridDhtPartitionFullMap.java:107)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtPartitionTopologyImpl.partitionMap(GridDhtPartitionTopologyImpl.java:841)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.sendAllPartitions(GridCachePartitionExchangeManager.java:747)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.refreshPartitions(GridCachePartitionExchangeManager.java:698)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.refreshPartitions(GridCachePartitionExchangeManager.java:724)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.access$1600(GridCachePartitionExchangeManager.java:107)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:1267)
> at
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
> at java.lang.Thread.run(Thread.java:745)
>
> Exception in thread "exchange-worker-#45%null%" Exception in thread
> "grid-nio-worker-0-#40%null%" java.lang.OutOfMemoryError: Java heap space
> at java.util.HashMap.newNode(HashMap.java:1734)
> at java.util.HashMap.putVal(HashMap.java:630)
> at java.util.HashMap.put(HashMap.java:611)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap2.put(GridDhtPartitionMap2.java:112)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionMap2.<init>(GridDhtPartitionMap2.java:96)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionFullMap.<init>(GridDhtPartitionFullMap.java:107)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtPartitionTopologyImpl.partitionMap(GridDhtPartitionTopologyImpl.java:841)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.sendAllPartitions(GridCachePartitionExchangeManager.java:747)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.refreshPartitions(GridCachePartitionExchangeManager.java:698)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.refreshPartitions(GridCachePartitionExchangeManager.java:724)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.access$1600(GridCachePartitionExchangeManager.java:107)
> at
> org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$ExchangeWorker.body(GridCachePartitionExchangeManager.java:1267)
> at
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
> at java.lang.Thread.run(Thread.java:745)
> java.lang.OutOfMemoryError: Java heap space
> at java.util.HashMap$KeySet.iterator(HashMap.java:912)
> at java.util.HashSet.iterator(HashSet.java:172)
> at
> java.util.Collections$UnmodifiableCollection$1.<init>(Collections.java:1039)
> at
> java.util.Collections$UnmodifiableCollection.iterator(Collections.java:1038)
> at
> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.checkIdle(GridNioServer.java:1489)
> at
> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.bodyInternal(GridNioServer.java:1406)
> at
> org.apache.ignite.internal.util.nio.GridNioServer$AbstractNioClientWorker.body(GridNioServer.java:1280)
> at
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
> at java.lang.Thread.run(Thread.java:745)
>
>
>
> ---------------------------------------------------
>
>
> I'm mostly using the default configuration for the cache.
> I don't know if maybe I might be missing something to get the most out of
> Ignite.
>
> Any tips and suggestions are welcome, as I cannot have Ignite dying on me
> (specially after just 3 days).
>
> Thanks in advance.
>