BTW, "lines" is a DStream. Bin Wang <wbi...@gmail.com>于2015年10月23日周五 下午2:16写道:
> I use mapPartitions to open connections to Redis, I write it like this: > > val seqs = lines.mapPartitions { lines => > val cache = new RedisCache(redisUrl, redisPort) > val result = lines.map(line => Parser.parseBody(line, cache)) > cache.redisPool.close > result > } > > But it seems the pool is closed before I use it. Am I doing anything > wrong? Here is the error: > > java.lang.IllegalStateException: Pool not open > at > org.apache.commons.pool.BaseObjectPool.assertOpen(BaseObjectPool.java:140) > at > org.apache.commons.pool.impl.StackObjectPool.borrowObject(StackObjectPool.java:166) > at com.redis.RedisClientPool.withClient(Pool.scala:34) > at com.appadhoc.data.cache.RedisCache.getExpId(RedisCache.scala:17) > at > com.appadhoc.data.parser.Parser$$anonfun$parseBody$1.apply(Parser.scala:29) > at > com.appadhoc.data.parser.Parser$$anonfun$parseBody$1.apply(Parser.scala:26) > at > scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) > at > scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244) > at scala.collection.immutable.List.foreach(List.scala:318) > at scala.collection.TraversableLike$class.map(TraversableLike.scala:244) > at scala.collection.AbstractTraversable.map(Traversable.scala:105) > at com.appadhoc.data.parser.Parser$.parseBody(Parser.scala:26) > at > com.appadhoc.data.main.StatCounter$$anonfun$2$$anonfun$3.apply(StatCounter.scala:33) > at > com.appadhoc.data.main.StatCounter$$anonfun$2$$anonfun$3.apply(StatCounter.scala:33) > at scala.collection.Iterator$$anon$11.next(Iterator.scala:328) > at scala.collection.Iterator$$anon$13.hasNext(Iterator.scala:371) > at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327) > at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:327) > at > org.apache.spark.util.collection.ExternalSorter.insertAll(ExternalSorter.scala:209) > at > org.apache.spark.shuffle.sort.SortShuffleWriter.write(SortShuffleWriter.scala:73) > at > org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:73) > at > org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:41) > at org.apache.spark.scheduler.Task.run(Task.scala:88) > at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:214) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > >