java.lang.NoClassDefFoundError: com/gemstone/gemfire/cache/client/internal/PingOp

Spring JIRA | Frederico Melo | 2 years ago
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  1. 0

    [XD-2817] Classpath issues with gemfire-json-server sink - Spring JIRA

    spring.io | 1 year ago
    java.lang.NoClassDefFoundError: com/gemstone/gemfire/cache/client/internal/PingOp
  2. 0

    The GemFire client for SpringXD is throwing java.lang.NoClassDefFoundError for the class com/gemstone/gemfire/cache/client/internal/PingOp after a Stream sinking to gemfire-json-server is destroyed. Issue starts after destroying a stream, which makes me think we might be unloading the jar files from the classpath while still keeping a connection to the gemfire server. Steps to reproduce: 1) Create a region in Gemfire to test e.g.: gfsh>create region --name=Stocks --type=REPLICATE Member | Status ------- | ------------------------------------- server1 | Region "/Stocks" created on "server1" 2) Create a simple stream in Spring XD that writes to that region in gemfire-json-server. Deploy it for single node and let it run for a few seconds. e.g.: XD$ stream create streamx --definition "trigger --fixedDelay=3 | http-client --url='''https://query.yahooapis.com/v1/public/yql?q=select * from yahoo.finance.quote where symbol in (\"MSFT\")&format=json&env=store://datatables.org/alltableswithkeys''' --httpMethod=GET | splitter --expression=#jsonPath(payload,'$.query.results.quote') | gemfire-json-server --useLocator=true --host=localhost --port=10334 --regionName=Stocks --keyExpression=payload.getField('Symbol')" --deploy 3) Destroy the stream e.g.: XD$ stream destroy streamx 3) Wait a few seconds and check the xd-singlenode output.. you'll see the exception as following: [error 2015/03/13 11:04:52.437 PDT <poolTimer-client-pool-14> tid=0x15a] Unexpected error in pool task <com.gemstone.gemfire.cache.client.internal.LiveServerPinger$PingTask@635c9341> java.lang.NoClassDefFoundError: com/gemstone/gemfire/cache/client/internal/PingOp at com.gemstone.gemfire.cache.client.internal.LiveServerPinger$PingTask.run2(LiveServerPinger.java:83) at com.gemstone.gemfire.cache.client.internal.PoolImpl$PoolTask.run(PoolImpl.java:1197) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) at com.gemstone.gemfire.internal.ScheduledThreadPoolExecutorWithKeepAlive$DelegatingScheduledFuture.run(ScheduledThreadPoolExecutorWithKeepAlive.java:252) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)

    Spring JIRA | 2 years ago | Frederico Melo
    java.lang.NoClassDefFoundError: com/gemstone/gemfire/cache/client/internal/PingOp
  3. 0

    The GemFire client for SpringXD is throwing java.lang.NoClassDefFoundError for the class com/gemstone/gemfire/cache/client/internal/PingOp after a Stream sinking to gemfire-json-server is destroyed. Issue starts after destroying a stream, which makes me think we might be unloading the jar files from the classpath while still keeping a connection to the gemfire server. Steps to reproduce: 1) Create a region in Gemfire to test e.g.: gfsh>create region --name=Stocks --type=REPLICATE Member | Status ------- | ------------------------------------- server1 | Region "/Stocks" created on "server1" 2) Create a simple stream in Spring XD that writes to that region in gemfire-json-server. Deploy it for single node and let it run for a few seconds. e.g.: XD$ stream create streamx --definition "trigger --fixedDelay=3 | http-client --url='''https://query.yahooapis.com/v1/public/yql?q=select * from yahoo.finance.quote where symbol in (\"MSFT\")&format=json&env=store://datatables.org/alltableswithkeys''' --httpMethod=GET | splitter --expression=#jsonPath(payload,'$.query.results.quote') | gemfire-json-server --useLocator=true --host=localhost --port=10334 --regionName=Stocks --keyExpression=payload.getField('Symbol')" --deploy 3) Destroy the stream e.g.: XD$ stream destroy streamx 3) Wait a few seconds and check the xd-singlenode output.. you'll see the exception as following: [error 2015/03/13 11:04:52.437 PDT <poolTimer-client-pool-14> tid=0x15a] Unexpected error in pool task <com.gemstone.gemfire.cache.client.internal.LiveServerPinger$PingTask@635c9341> java.lang.NoClassDefFoundError: com/gemstone/gemfire/cache/client/internal/PingOp at com.gemstone.gemfire.cache.client.internal.LiveServerPinger$PingTask.run2(LiveServerPinger.java:83) at com.gemstone.gemfire.cache.client.internal.PoolImpl$PoolTask.run(PoolImpl.java:1197) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) at com.gemstone.gemfire.internal.ScheduledThreadPoolExecutorWithKeepAlive$DelegatingScheduledFuture.run(ScheduledThreadPoolExecutorWithKeepAlive.java:252) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)

    Spring JIRA | 2 years ago | Frederico Melo
    java.lang.NoClassDefFoundError: com/gemstone/gemfire/cache/client/internal/PingOp
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    Root Cause Analysis

    1. java.lang.NoClassDefFoundError

      com/gemstone/gemfire/cache/client/internal/PingOp

      at com.gemstone.gemfire.cache.client.internal.LiveServerPinger$PingTask.run2()
    2. com.gemstone.gemfire
      PoolImpl$PoolTask.run
      1. com.gemstone.gemfire.cache.client.internal.LiveServerPinger$PingTask.run2(LiveServerPinger.java:83)
      2. com.gemstone.gemfire.cache.client.internal.PoolImpl$PoolTask.run(PoolImpl.java:1197)
      2 frames
    3. Java RT
      FutureTask.runAndReset
      1. java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      2. java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
      2 frames
    4. com.gemstone.gemfire
      ScheduledThreadPoolExecutorWithKeepAlive$DelegatingScheduledFuture.run
      1. com.gemstone.gemfire.internal.ScheduledThreadPoolExecutorWithKeepAlive$DelegatingScheduledFuture.run(ScheduledThreadPoolExecutorWithKeepAlive.java:252)
      1 frame
    5. Java RT
      Thread.run
      1. java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      2. java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      3. java.lang.Thread.run(Thread.java:745)
      3 frames