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From Denis Magda <dma...@gridgain.com>
Subject Re: Help with tuning for larger clusters
Date Wed, 28 Oct 2015 14:04:36 GMT
Hi Joe,

No problems, I'll guide you until we get to the bottom.

Do you start pre-loading the caches with data right after the cluster is 
ready? If so let's postpone doing this until you have a stable cluster 
with caches rebalanced and ready to be used.

Please, do the following as the next steps:

1) Set 'failureDetectionTimeout' to a bigger value (~ 15 secs);

2) Set CacheConfiguration.setRebalanceTimeout to a value that is 
approximately equal to the time when all the nodes are joined the 
topology (~ 1 minute or so).

3) Enable verbose logging for every node by passing -DIGNITE_QUEIT=false 
parameter to virtual machine arguments list. If you use ignite.sh script 
then just pass '-v' flag.

4) Enable garbage collection logs for every node by passing this string 
to virtual machine arguments list -Xloggc:./gc.log -XX:+PrintGCDetails 
-verbose:gc

When you did a test run taking into account all the points above please 
gather all the logs (including garbage collection logs) and send us for 
further investigation.

Regards,
Denis

On 10/28/2015 1:40 PM, dev@eiler.net wrote:
> Thanks for the info Denis.
>
> Removing the failureDetectionTimeout and using the networkTimeout 
> seems to allow the nodes to join the topology in about the same amount 
> of time. I'm still only having occasional success running anything 
> (even just the pi estimator)
>
> I seem to always see a bunch of warnings...a summary is dumped below 
> along with my config at the end, any guidance you can provide is 
> appreciated.
>
> Thanks,
> Joe
>
> Every node seems to see a bunch of "Retrying preload partition", with 
> the lowest locNodeOrder having fewer nodes in the remaining
>
> [14:52:38,979][WARN 
> ][ignite-#104%sys-null%][GridDhtPartitionsExchangeFuture] Retrying 
> preload partition exchange due to timeout [done=false, dummy=false, 
> exchId=GridDhtPartitionExchangeId [topVer=AffinityTopologyVersion 
> [topVer=62, minorTopVer=0], nodeId=fd9620f5, evt=NODE_JOINED], 
> rcvdIds=[], rmtIds=[0ab29a08, 5216f6ba, f882885f, 0d232f1a, b74f5ebb, 
> 5790761a, 55d2082e, b1bf93b3, 2fd79f9f, a899ccce, 3dd74aba, 320d05fd, 
> 0d44a4b3, 9a00f235, 4426467e, 7837fdfc, e8778da0, 4a988e3e, f8cabdbb, 
> 494ad6fd, 7c05abfb, 5902c851, c406028e, a0b57685, e213b903, c85a0b46, 
> df981c08, 187cd54f, f0b7b298, 94ec7576, 041975f5, aecba5d0, 5549256d, 
> f9b5a77a, 596d0df7, 26266d8c, 0e664e25, 97d112b2, aac08043, 6b81a2b1, 
> 5a2a1012, 534ac94b, b34cb942, 837785eb, 966d70b2, 3aab732e, 4e34ad89, 
> 6df0ffff, 4c7c3c47, 85eea5fe, 1c5e2f6b, 3f426f4e, 27a9bef9, cd874e96, 
> dc3256a7, 4da50521, 1d370c9e, 19c334eb, 24be15dd, 6c922af3, 01ea2812], 
> remaining=[0ab29a08, 5216f6ba, f882885f, 0d232f1a, b74f5ebb, 5790761a, 
> 55d2082e, b1bf93b3, 2fd79f9f, a899ccce, 3dd74aba, 320d05fd, 0d44a4b3, 
> 9a00f235, 4426467e, 7837fdfc, e8778da0, 4a988e3e, f8cabdbb, 494ad6fd, 
> 7c05abfb, 5902c851, c406028e, a0b57685, e213b903, c85a0b46, df981c08, 
> 187cd54f, f0b7b298, 94ec7576, 041975f5, aecba5d0, 5549256d, f9b5a77a, 
> 596d0df7, 26266d8c, 0e664e25, 97d112b2, aac08043, 6b81a2b1, 5a2a1012, 
> 534ac94b, b34cb942, 837785eb, 966d70b2, 3aab732e, 4e34ad89, 6df0ffff, 
> 4c7c3c47, 85eea5fe, 1c5e2f6b, 3f426f4e, 27a9bef9, cd874e96, dc3256a7, 
> 4da50521, 1d370c9e, 19c334eb, 24be15dd, 6c922af3, 01ea2812], 
> init=true, initFut=true, ready=true, replied=false, added=true, 
> oldest=0d44a4b3, oldestOrder=1, evtLatch=0, locNodeOrder=62, 
> locNodeId=fd9620f5-3ebb-4a71-a482-73d6a81b1688]
>
>
> [14:38:41,893][WARN 
> ][ignite-#95%sys-null%][GridDhtPartitionsExchangeFuture] Retrying 
> preload partition exchange due to timeout [done=false, dummy=false, 
> exchId=GridDhtPartitionExchangeId [topVer=AffinityTopologyVersion 
> [topVer=25, minorTopVer=0], nodeId=df981c08, evt=NODE_JOINED], 
> rcvdIds=[7c05abfb, b34cb942, e213b903, 320d05fd, 5902c851, f0b7b298, 
> 1d370c9e, 0d232f1a, 494ad6fd, 5a2a1012, b1bf93b3, 55d2082e, 7837fdfc, 
> 85eea5fe, 4e34ad89, 5790761a, 3f426f4e, aac08043, 187cd54f, 01ea2812, 
> c406028e, 24be15dd, 966d70b2], rmtIds=[0d232f1a, 5790761a, 55d2082e, 
> b1bf93b3, aac08043, 5a2a1012, b34cb942, 320d05fd, 966d70b2, 4e34ad89, 
> 85eea5fe, 7837fdfc, 3f426f4e, 1d370c9e, 494ad6fd, 7c05abfb, 5902c851, 
> c406028e, 24be15dd, e213b903, df981c08, 187cd54f, f0b7b298, 01ea2812], 
> remaining=[df981c08], init=true, initFut=true, ready=true, 
> replied=false, added=true, oldest=0d44a4b3, oldestOrder=1, evtLatch=0, 
> locNodeOrder=1, locNodeId=0d44a4b3-4d10-4f67-b8bd-005be226b1df]
>
>
> I also see a little over half the nodes getting "Still waiting for 
> initial partition map exchange" warnings like this
>
>
> [14:39:37,848][WARN ][main][GridCachePartitionExchangeManager] Still 
> waiting for initial partition map exchange 
> [fut=GridDhtPartitionsExchangeFuture [dummy=false, forcePreload=false, 
> reassign=false, discoEvt=DiscoveryEvent [evtNode=TcpDiscoveryNode 
> [id=27a9bef9-de04-486d-aac0-bfa749e9007d, addrs=[0:0:0:0:0:0:0:1%1, 
> 10.148.0.87, 10.159.1.182, 127.0.0.1], 
> sockAddrs=[r1i4n10.redacted.com/10.148.0.87:47500, 
> /0:0:0:0:0:0:0:1%1:47500, /10.159.1.182:47500, /10.148.0.87:47500, 
> /10.159.1.182:47500, /127.0.0.1:47500], discPort=47500, order=48, 
> intOrder=48, lastExchangeTime=1445974777828, loc=true, 
> ver=1.4.0#19691231-sha1:00000000, isClient=false], topVer=48, 
> nodeId8=27a9bef9, msg=null, type=NODE_JOINED, tstamp=1445974647187], 
> rcvdIds=GridConcurrentHashSet [elements=[]], 
> rmtIds=[0ab29a08-9c95-4054-8035-225f5828b3d4, 
> 0d232f1a-0f46-4798-a39a-63a17dc4dc7f, 
> f9b5a77a-a4c1-46aa-872e-aeaca9b76ee3, 
> 596d0df7-3edf-4078-8f4a-ffa3d96296c6, 
> 5790761a-aeeb-44d1-9fce-3fee31ef39b7, 
> 55d2082e-3517-4828-8d47-57b4ed5a41bc, 
> 26266d8c-cc87-4472-9fa4-c526d6da2233, 
> 0e664e25-8dde-4df8-966b-53b60f9a1087, 
> b1bf93b3-24bb-4520-ade0-31d05a93558d, 
> aac08043-875a-485a-ab2c-cd7e66d68f8f, 
> 2fd79f9f-9590-41d2-962e-004a3d7690b5, 
> 5a2a1012-0766-448c-9583-25873c305de9, 
> 534ac94b-8dd1-4fa8-a481-539fa4f4ce55, 
> b34cb942-e960-4a00-b4fb-10add6466a93, 
> 320d05fd-e021-40ac-83bc-62f54756771b, 
> 0d44a4b3-4d10-4f67-b8bd-005be226b1df, 
> 837785eb-24e0-496a-a0cc-f795b64b5929, 
> 9a00f235-3b6a-4be5-b0e3-93cd1beacaf4, 
> 966d70b2-e1dc-4e20-9876-b63736545abd, 
> 3aab732e-a075-4b19-9525-e97a1260a4fe, 
> 4e34ad89-fa46-4503-a599-b8c937ca1f47, 
> 4c7c3c47-6e5c-4c15-80a9-408192596bc2, 
> 85eea5fe-9aff-4821-970c-4ce006ee853a, 
> 7837fdfc-6255-4784-8088-09d4e6e37bb9, 
> 3f426f4e-2d0c-402a-a4af-9d7656f46484, 
> e8778da0-a764-4ad9-afba-8a748564e12a, 
> 4a988e3e-3434-4271-acd6-af2a1e30524c, 
> cd874e96-63cf-41c9-8e8a-75f3223bfe9d, 
> f8cabdbb-875a-480b-8b5e-4b5313c5fcbd, 
> dc3256a7-ae23-4c2e-b375-55e2884e045d, 
> 4da50521-aad0-48a4-9f79-858bbc2e6b89, 
> 1d370c9e-250f-4733-8b8a-7b6f5c6e1b2b, 
> 494ad6fd-1637-44b8-8d3a-1fa19681ba64, 
> 7c05abfb-dba1-43c3-a8b1-af504762ec60, 
> 5902c851-5275-41fd-89c4-cd6390c88670, 
> 19c334eb-5661-4697-879d-1082571dfef8, 
> c406028e-768e-404e-8417-40d2960c4ba3, 
> a0b57685-e5dc-498c-99a4-33b1aef32632, 
> 24be15dd-45f7-4980-b4f8-3176ab67e8f6, 
> e213b903-107b-4465-8fe1-78b7b393d631, 
> df981c08-148d-4266-9ea7-163168012968, 
> 187cd54f-396b-4c3c-9bfc-9883ac37f556, 
> f0b7b298-6432-477a-85a0-83e29e8c5380, 
> 94ec7576-7a02-4c08-8739-4e0fc52a3d3a, 
> 041975f5-990a-4792-b384-eded32966783, 
> 01ea2812-5005-4152-af2e-2586bf65b4c6, 
> aecba5d0-9d9b-4ab6-9018-62f5abb7b809], 
> exchId=GridDhtPartitionExchangeId [topVer=AffinityTopologyVersion 
> [topVer=48, minorTopVer=0], nodeId=27a9bef9, evt=NODE_JOINED], 
> init=true, ready=true, replied=false, added=true, 
> initFut=GridFutureAdapter [resFlag=2, res=true, 
> startTime=1445974657836, endTime=1445974658400, 
> ignoreInterrupts=false, lsnr=null, state=DONE], topSnapshot=null, 
> lastVer=null, partReleaseFut=GridCompoundFuture [lsnrCalls=3, 
> finished=true, rdc=null, init=true, 
> res=java.util.concurrent.atomic.AtomicMarkableReference@6b58be0e, 
> err=null, done=true, cancelled=false, err=null, futs=[true, true, 
> true]], skipPreload=false, clientOnlyExchange=false, 
> oldest=0d44a4b3-4d10-4f67-b8bd-005be226b1df, oldestOrder=1, 
> evtLatch=0, remaining=[0ab29a08-9c95-4054-8035-225f5828b3d4, 
> 0d232f1a-0f46-4798-a39a-63a17dc4dc7f, 
> f9b5a77a-a4c1-46aa-872e-aeaca9b76ee3, 
> 596d0df7-3edf-4078-8f4a-ffa3d96296c6, 
> 5790761a-aeeb-44d1-9fce-3fee31ef39b7, 
> 55d2082e-3517-4828-8d47-57b4ed5a41bc, 
> 26266d8c-cc87-4472-9fa4-c526d6da2233, 
> 0e664e25-8dde-4df8-966b-53b60f9a1087, 
> b1bf93b3-24bb-4520-ade0-31d05a93558d, 
> aac08043-875a-485a-ab2c-cd7e66d68f8f, 
> 2fd79f9f-9590-41d2-962e-004a3d7690b5, 
> 5a2a1012-0766-448c-9583-25873c305de9, 
> 534ac94b-8dd1-4fa8-a481-539fa4f4ce55, 
> b34cb942-e960-4a00-b4fb-10add6466a93, 
> 320d05fd-e021-40ac-83bc-62f54756771b, 
> 0d44a4b3-4d10-4f67-b8bd-005be226b1df, 
> 837785eb-24e0-496a-a0cc-f795b64b5929, 
> 9a00f235-3b6a-4be5-b0e3-93cd1beacaf4, 
> 966d70b2-e1dc-4e20-9876-b63736545abd, 
> 3aab732e-a075-4b19-9525-e97a1260a4fe, 
> 4e34ad89-fa46-4503-a599-b8c937ca1f47, 
> 4c7c3c47-6e5c-4c15-80a9-408192596bc2, 
> 85eea5fe-9aff-4821-970c-4ce006ee853a, 
> 7837fdfc-6255-4784-8088-09d4e6e37bb9, 
> 3f426f4e-2d0c-402a-a4af-9d7656f46484, 
> e8778da0-a764-4ad9-afba-8a748564e12a, 
> 4a988e3e-3434-4271-acd6-af2a1e30524c, 
> cd874e96-63cf-41c9-8e8a-75f3223bfe9d, 
> f8cabdbb-875a-480b-8b5e-4b5313c5fcbd, 
> dc3256a7-ae23-4c2e-b375-55e2884e045d, 
> 4da50521-aad0-48a4-9f79-858bbc2e6b89, 
> 1d370c9e-250f-4733-8b8a-7b6f5c6e1b2b, 
> 494ad6fd-1637-44b8-8d3a-1fa19681ba64, 
> 7c05abfb-dba1-43c3-a8b1-af504762ec60, 
> 5902c851-5275-41fd-89c4-cd6390c88670, 
> 19c334eb-5661-4697-879d-1082571dfef8, 
> c406028e-768e-404e-8417-40d2960c4ba3, 
> a0b57685-e5dc-498c-99a4-33b1aef32632, 
> 24be15dd-45f7-4980-b4f8-3176ab67e8f6, 
> e213b903-107b-4465-8fe1-78b7b393d631, 
> df981c08-148d-4266-9ea7-163168012968, 
> 187cd54f-396b-4c3c-9bfc-9883ac37f556, 
> f0b7b298-6432-477a-85a0-83e29e8c5380, 
> 94ec7576-7a02-4c08-8739-4e0fc52a3d3a, 
> 041975f5-990a-4792-b384-eded32966783, 
> 01ea2812-5005-4152-af2e-2586bf65b4c6, 
> aecba5d0-9d9b-4ab6-9018-62f5abb7b809], super=GridFutureAdapter 
> [resFlag=0, res=null, startTime=1445974657836, endTime=0, 
> ignoreInterrupts=false, lsnr=null, state=INIT]]]
>
>
>
> Then on the occasions when mapreduce jobs fail I will see one node 
> with (it isn't always the same node)
>
>
> [14:52:57,080][WARN 
> ][grid-nio-worker-3-#135%null%][TcpCommunicationSpi] Closing NIO 
> session because of unhandled exception [cls=class 
> o.a.i.i.util.nio.GridNioException, msg=Connection timed out]
> [14:52:59,123][WARN 
> ][grid-nio-worker-3-#135%null%][TcpCommunicationSpi] Failed to process 
> selector key (will close): GridSelectorNioSessionImpl [selectorIdx=3, 
> queueSize=0, writeBuf=java.nio.DirectByteBuffer[pos=0 lim=32768 
> cap=32768], readBuf=java.nio.DirectByteBuffer[pos=0 lim=32768 
> cap=32768], recovery=GridNioRecoveryDescriptor [acked=3, resendCnt=0, 
> rcvCnt=0, reserved=true, lastAck=0, nodeLeft=false, 
> node=TcpDiscoveryNode [id=837785eb-24e0-496a-a0cc-f795b64b5929, 
> addrs=[0:0:0:0:0:0:0:1%1, 10.148.0.81, 10.159.1.176, 127.0.0.1], 
> sockAddrs=[/10.159.1.176:47500, /0:0:0:0:0:0:0:1%1:47500, 
> r1i4n4.redacted.com/10.148.0.81:47500, /10.148.0.81:47500, 
> /10.159.1.176:47500, /127.0.0.1:47500], discPort=47500, order=45, 
> intOrder=45, lastExchangeTime=1445974625750, loc=false, 
> ver=1.4.0#19691231-sha1:00000000, isClient=false], connected=true, 
> connectCnt=1, queueLimit=5120], super=GridNioSessionImpl 
> [locAddr=/10.159.1.112:46222, rmtAddr=/10.159.1.176:47100, 
> createTime=1445974646591, closeTime=0, bytesSent=30217, bytesRcvd=9, 
> sndSchedTime=1445975577912, lastSndTime=1445975577912, 
> lastRcvTime=1445974655114, readsPaused=false, 
> filterChain=FilterChain[filters=[GridNioCodecFilter 
> [parser=o.a.i.i.util.nio.GridDirectParser@44de55ba, directMode=true], 
> GridConnectionBytesVerifyFilter], accepted=false]]
> [14:52:59,124][WARN 
> ][grid-nio-worker-3-#135%null%][TcpCommunicationSpi] Closing NIO 
> session because of unhandled exception [cls=class 
> o.a.i.i.util.nio.GridNioException, msg=Connection timed out]
> [14:53:00,105][WARN 
> ][grid-nio-worker-3-#135%null%][TcpCommunicationSpi] Failed to process 
> selector key (will close): GridSelectorNioSessionImpl [selectorIdx=3, 
> queueSize=0, writeBuf=java.nio.DirectByteBuffer[pos=0 lim=32768 
> cap=32768], readBuf=java.nio.DirectByteBuffer[pos=0 lim=32768 
> cap=32768], recovery=GridNioRecoveryDescriptor [acked=0, resendCnt=0, 
> rcvCnt=0, reserved=true, lastAck=0, nodeLeft=false, 
> node=TcpDiscoveryNode [id=4426467e-b4b4-4912-baa1-d7cc839d9188, 
> addrs=[0:0:0:0:0:0:0:1%1, 10.148.0.106, 10.159.1.201, 127.0.0.1], 
> sockAddrs=[/10.159.1.201:47500, /0:0:0:0:0:0:0:1%1:47500, 
> r1i5n11.redacted.com/10.148.0.106:47500, /10.148.0.106:47500, 
> /10.159.1.201:47500, /127.0.0.1:47500], discPort=47500, order=57, 
> intOrder=57, lastExchangeTime=1445974625790, loc=false, 
> ver=1.4.0#19691231-sha1:00000000, isClient=false], connected=true, 
> connectCnt=1, queueLimit=5120], super=GridNioSessionImpl 
> [locAddr=/10.159.1.112:60869, rmtAddr=/10.159.1.201:47100, 
> createTime=1445974654478, closeTime=0, bytesSent=22979, bytesRcvd=0, 
> sndSchedTime=1445975577912, lastSndTime=1445975577912, 
> lastRcvTime=1445974654478, readsPaused=false, 
> filterChain=FilterChain[filters=[GridNioCodecFilter 
> [parser=o.a.i.i.util.nio.GridDirectParser@44de55ba, directMode=true], 
> GridConnectionBytesVerifyFilter], accepted=false]]
> [14:53:00,105][WARN 
> ][grid-nio-worker-3-#135%null%][TcpCommunicationSpi] Closing NIO 
> session because of unhandled exception [cls=class 
> o.a.i.i.util.nio.GridNioException, msg=Connection timed out]
>
>
> I've tried adjusting the timeout settings further but haven't had much 
> success.
>
> Here is what my config looks like, it is obviously heavily based off 
> the hadoop example config.
>
>
> <?xml version="1.0" encoding="UTF-8"?>
> <beans ns1:schemaLocation="http://www.springframework.org/schema/beans 
> http://www.springframework.org/schema/beans/spring-beans.xsd      
> http://www.springframework.org/schema/util 
> http://www.springframework.org/schema/util/spring-util.xsd" 
> xmlns="http://www.springframework.org/schema/beans" 
> xmlns:ns1="http://www.w3.org/2001/XMLSchema-instance">
>   <description>
>         Spring file for Ignite node configuration with IGFS and Apache 
> Hadoop map-reduce support enabled.
>         Ignite node will start with this configuration by default.
>     </description>
>   <bean 
> class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer" 
> id="propertyConfigurer">
>     <property name="systemPropertiesModeName" 
> value="SYSTEM_PROPERTIES_MODE_FALLBACK" />
>     <property name="searchSystemEnvironment" value="true" />
>   </bean>
>   <bean abstract="true" 
> class="org.apache.ignite.configuration.FileSystemConfiguration" 
> id="igfsCfgBase">
>     <property name="blockSize" value="#{128 * 1024}" />
>     <property name="perNodeBatchSize" value="512" />
>     <property name="perNodeParallelBatchCount" value="16" />
>     <property name="prefetchBlocks" value="32" />
>   </bean>
>   <bean abstract="true" 
> class="org.apache.ignite.configuration.CacheConfiguration" 
> id="dataCacheCfgBase">
>     <property name="cacheMode" value="PARTITIONED" />
>     <property name="atomicityMode" value="TRANSACTIONAL" />
>     <property name="writeSynchronizationMode" value="FULL_SYNC" />
>     <property name="backups" value="0" />
>     <property name="affinityMapper">
>       <bean class="org.apache.ignite.igfs.IgfsGroupDataBlocksKeyMapper">
>         <constructor-arg value="512" />
>       </bean>
>     </property>
>     <property name="startSize" value="#{100*1024*1024}" />
>     <property name="offHeapMaxMemory" value="0" />
>   </bean>
>   <bean abstract="true" 
> class="org.apache.ignite.configuration.CacheConfiguration" 
> id="metaCacheCfgBase">
>     <property name="cacheMode" value="REPLICATED" />
>     <property name="atomicityMode" value="TRANSACTIONAL" />
>     <property name="writeSynchronizationMode" value="FULL_SYNC" />
>   </bean>
>   <bean class="org.apache.ignite.configuration.IgniteConfiguration" 
> id="grid.cfg">
>     <property name="failureDetectionTimeout" value="3000" />
>     <property name="hadoopConfiguration">
>       <bean class="org.apache.ignite.configuration.HadoopConfiguration">
>         <property name="finishedJobInfoTtl" value="30000" />
>       </bean>
>     </property>
>     <property name="connectorConfiguration">
>       <bean 
> class="org.apache.ignite.configuration.ConnectorConfiguration">
>         <property name="port" value="11211" />
>       </bean>
>     </property>
>     <property name="fileSystemConfiguration">
>       <list>
>         <bean 
> class="org.apache.ignite.configuration.FileSystemConfiguration" 
> parent="igfsCfgBase">
>           <property name="name" value="igfs" />
>           <property name="metaCacheName" value="igfs-meta" />
>           <property name="dataCacheName" value="igfs-data" />
>           <property name="ipcEndpointConfiguration">
>             <bean 
> class="org.apache.ignite.igfs.IgfsIpcEndpointConfiguration">
>               <property name="type" value="TCP" />
>               <property name="host" value="r1i0n12" />
>               <property name="port" value="10500" />
>             </bean>
>           </property>
>         </bean>
>       </list>
>     </property>
>     <property name="cacheConfiguration">
>       <list>
>         <bean 
> class="org.apache.ignite.configuration.CacheConfiguration" 
> parent="metaCacheCfgBase">
>           <property name="name" value="igfs-meta" />
>         </bean>
>         <bean 
> class="org.apache.ignite.configuration.CacheConfiguration" 
> parent="dataCacheCfgBase">
>           <property name="name" value="igfs-data" />
>         </bean>
>       </list>
>     </property>
>     <property name="includeEventTypes">
>       <list>
>         <ns2:constant 
> static-field="org.apache.ignite.events.EventType.EVT_TASK_FAILED" 
> xmlns:ns2="http://www.springframework.org/schema/util" />
>         <ns2:constant 
> static-field="org.apache.ignite.events.EventType.EVT_TASK_FINISHED" 
> xmlns:ns2="http://www.springframework.org/schema/util" />
>         <ns2:constant 
> static-field="org.apache.ignite.events.EventType.EVT_JOB_MAPPED" 
> xmlns:ns2="http://www.springframework.org/schema/util" />
>       </list>
>     </property>
>     <property name="discoverySpi">
>       <bean class="org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi">
>         <property name="ipFinder">
>           <bean 
> class="org.apache.ignite.spi.discovery.tcp.ipfinder.vm.TcpDiscoveryVmIpFinder">
>             <property name="addresses">
>               <list>
>                 <value>r1i0n12:47500</value>
>               </list>
>             </property>
>           </bean>
>         </property>
>       </bean>
>     </property>
>   </bean>
> </beans>
>
>
>
> Quoting Denis Magda <dmagda@gridgain.com>:
>
>> Hi Joe,
>>
>> Great!
>>
>> Please see below
>>
>> On 10/27/2015 9:37 AM, dev@eiler.net wrote:
>>> Reducing the port range (to a single port) and lowering the 
>>> IgniteConfiguration.setFailureDetectionTimeout to 1000 helped speed 
>>> up everybody joining the topology and I was able to get a pi 
>>> estimator run on 64 nodes.
>>>
>>
>> I suspect that the reason was in the number of ports specified in the 
>> range.  By some reason it takes significant time to get a response 
>> from TCP/IP stack that a connection can't be established on a 
>> particular port number.
>> Please try to reduce the port range, lower 
>> TcpDiscoverySpi.setNetworkTimeout, keep 
>> IgniteConfiguration.setFailureDetectionTimeout's default value and 
>> share results with us.
>>
>>> Thanks again for the help, I'm over the current hurdle.
>>> Joe
>>>
>>>
>>> Quoting dev@eiler.net:
>>>
>>>> Thanks for the quick response Denis.
>>>>
>>>> I did a port range of 10 ports. I'll take a look at the 
>>>> failureDetectionTimeout and networkTimeout.
>>>>
>>>> Side question: Is there an easy way to map between the programmatic 
>>>> API and the spring XML properties? For instance I was trying to 
>>>> find the correct xml incantation for 
>>>> TcpDiscoverySpi.setMaxMissedHeartbeats(int) and I might have a 
>>>> similar issue finding 
>>>> IgniteConfiguration.setFailureDetectionTimeout(long). It seems like 
>>>> I can usually drop the set and adjust capitalization (setFooBar() 
>>>> == <property name="fooBar")
>>>>
>> Yes, your understanding is correct.
>>>> Please pardon my ignorance on terminology:
>>>> Are the nodes I run ignite.sh on considered server nodes or cluster 
>>>> nodes (I would have thought they are the same)
>>>>
>> Actually we have a notion of server and client nodes. This page 
>> contains extensive information on the type of nodes:
>> https://apacheignite.readme.io/docs/clients-vs-servers
>>
>> A cluster node is just a server or client node.
>>
>> Regards,
>> Denis
>>>> Thanks,
>>>> Joe
>>>>
>>>> Quoting Denis Magda <dmagda@gridgain.com>:
>>>>
>>>>> Hi Joe,
>>>>>
>>>>> How big is a port range, that you specified in your discovery 
>>>>> configuration, for a every single node?
>>>>> Please take into account that the discovery may iterate over every 
>>>>> port from the range before one node connects to the other and 
>>>>> depending on the TCP related settings of your network it may take 
>>>>> significant time before the cluster is assembled.
>>>>>
>>>>> Here I would recommend you to reduce the port range as much as 
>>>>> possible and to play with the following network related parameters:
>>>>> - Try to use the failure detection timeout instead of setting 
>>>>> socket, ack and many other timeouts explicitly 
>>>>> (https://apacheignite.readme.io/docs/cluster-config#failure-detection-timeout);
>>>>> - Try to play with TcpDiscoverySpi.networkTimeout because this 
>>>>> timeout is considered during the time when a cluster node tries to 
>>>>> join a cluster.
>>>>>
>>>>> In order to help you with the hanging compute tasks and to give 
>>>>> you more specific recommendations regarding the slow join process 
>>>>> please provide us with the following:
>>>>> - config files for server and cluster nodes;
>>>>> - log files from all the nodes. Please start the nodes with 
>>>>> -DIGNITE_QUIET=false virtual machine property. If you start the 
>>>>> nodes using ignite.sh/bat then just pass '-v' as an argument to 
>>>>> the script.
>>>>> - thread dumps for the nodes that are hanging waiting for the 
>>>>> compute tasks to be completed.
>>>>>
>>>>> Regards,
>>>>> Denis
>>>>>
>>>>> On 10/26/2015 6:56 AM, dev@eiler.net wrote:
>>>>>> Hi all,
>>>>>>
>>>>>> I have been experimenting with ignite and have run into a problem

>>>>>> scaling up to larger clusters.
>>>>>>
>>>>>> I am playing with only two different use cases, 1) a Hadoop 
>>>>>> MapReduce accelerator 2) an in memory data grid (no secondary 
>>>>>> file system) being accessed by frameworks using the HDFS
>>>>>>
>>>>>> Everything works fine with a smaller cluster (8 nodes) but with a

>>>>>> larger cluster (64 nodes) it takes a couple of minutes for all 
>>>>>> the nodes to register with the cluster(which would be ok) and 
>>>>>> mapreduce jobs just hang and never return.
>>>>>>
>>>>>> I've compiled the latest Ignite 1.4 (with ignite.edition=hadoop)

>>>>>> from source, and am using it with Hadoop 2.7.1 just trying to run

>>>>>> things like the pi estimator and wordcount examples.
>>>>>>
>>>>>> I started with the config/hadoop/default-config.xml
>>>>>>
>>>>>> I can't use multicast so I've configured it to use static IP 
>>>>>> based discovery with just a single node/port range.
>>>>>>
>>>>>> I've increased the heartbeat frequency to 10000 and that seemed 
>>>>>> to help make things more stable once all the nodes do join the 
>>>>>> cluster. I've also played with increasing both the socket timeout

>>>>>> and the ack timeout but that seemed to just make it take longer 
>>>>>> for nodes to attempt to join the cluster after a failed attempt.
>>>>>>
>>>>>> I have access to a couple of different clusters, we allocate 
>>>>>> resources with slurm so I get a piece of a cluster to play with 
>>>>>> (hence the no-multicast restriction). The nodes all have fast 
>>>>>> networks (FDR InfiniBand) and a decent amount of memory 
>>>>>> (64GB-128GB) but no local storage (or swap space).
>>>>>>
>>>>>> As mentioned earlier, I disable the secondaryFilesystem.
>>>>>>
>>>>>> Any advice/hints/example xml configs would be extremely welcome.
>>>>>>
>>>>>>
>>>>>> I also haven't been seeing the expected performance using the 
>>>>>> hdfs api to access ignite. I've tried both using the hdfs cli to

>>>>>> do some simple timings of put/get and a little java program that

>>>>>> writes then reads a file.  Even with small files (500MB) that 
>>>>>> should be kept completely in a single node, I only see about 
>>>>>> 250MB/s for writes and reads are much slower than that (4x to 
>>>>>> 10x).  The writes are better than hdfs (our hdfs is backed with 
>>>>>> pretty poor storage) but reads are much slower. Now I haven't 
>>>>>> tried scaling this at all but with an 8 node ignite cluster and a

>>>>>> single "client" access a single file I would hope for something 
>>>>>> closer to memory speeds. (if you would like me to split this into

>>>>>> another message to the list just let me know, I'm assuming the 
>>>>>> cause it the same---I missed a required config setting ;-) )
>>>>>>
>>>>>> Thanks in advance for any help,
>>>>>> Joe
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>
>>>
>>>
>
>
>


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