com.lambdaworks.redis.RedisException

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  • com.lambdaworks.redis.RedisException: java.util.ConcurrentModificationException at com.lambdaworks.redis.cluster.PooledClusterConnectionProvider.getConnection(PooledClusterConnectionProvider.java:77) at com.lambdaworks.redis.cluster.ClusterDistributionChannelWriter.write(ClusterDistributionChannelWriter.java:98) at com.lambdaworks.redis.RedisChannelHandler.dispatch(RedisChannelHandler.java:118) at com.lambdaworks.redis.cluster.StatefulRedisClusterConnectionImpl.dispatch(StatefulRedisClusterConnectionImpl.java:189) at com.lambdaworks.redis.AbstractRedisAsyncCommands.dispatch(AbstractRedisAsyncCommands.java:1798) at com.lambdaworks.redis.AbstractRedisAsyncCommands.hkeys(AbstractRedisAsyncCommands.java:437) at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at com.lambdaworks.redis.cluster.StatefulRedisClusterConnectionImpl$ClusterFutureSyncInvocationHandler.handleInvocation(StatefulRedisClusterConnectionImpl.java:334) at com.lambdaworks.redis.internal.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:54) at com.sun.proxy.$Proxy17.hkeys(Unknown Source)[...snip...] at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341) at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:163) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1671)
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