Hadoop의 각 데몬을 기동하여 정상 작동중이다가 갑자기 DataNode가 아래와 같은 오류를 내면서 죽는 경우가 있다.

원인은 Heap메모리가 부족하여 발생하는 문제이다. 이때는 아래 내용을 참조하여 HEAP사이즈를 변경하여 각서버에 반영하고 Hadoop전체를 다시

재 기동시켜서 반영해준다.

(분제가 발생하는 노드는 전체 클러스트와 메모리는 같은데 HardDisk용량이 2.5배 정도 되는데 다른 노드에 비해서 데이타 유입량이 더 많아서

동한 다른 노드와 같은 설정을 하면 이용하면서 HEAP메모리 부족현상이 발생되는것으로 보임)

1. hadoop-env.sh에서
export HADOOP_HEAPSIZE을
export HADOOP_HEAPSIZE=3000 으로 설정한다.

export HADOOP_NAMENODE_INIT_HEAPSIZE=""을
export HADOOP_NAMENODE_INIT_HEAPSIZE="2000" 으로 설정한다.

2. mapred-env.sh에서
export HADOOP_JOB_HISTORYSERVER_HEAPSIZE=1000을
export HADOOP_JOB_HISTORYSERVER_HEAPSIZE=2000 으로 설정한다.

3. yarn-env.sh에서

JAVA_HEAP_MAX=-Xmx1000m 를
JAVA_HEAP_MAX=-Xmx2000m 으로 설정한다.

# YARN_HEAPSIZE=1000을
YARN_HEAPSIZE=2000 으로 설정한다.

-----------------------------------오류내용--------------------------------
2017-07-18 20:20:38,668 INFO org.apache.hadoop.util.JvmPauseMonitor: Detected pause in JVM or host machine (eg GC): pause of approximately 1265ms
GC pool 'PS MarkSweep' had collection(s): count=2 time=1764ms
2017-07-18 20:20:32,678 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: opWriteBlock BP-605282214-XXX.XXX.XXX.XXX-1498555165989:blk_1076520983_2780234 received exception java.io.IOException: Premature EOF from inputStream
2017-07-18 20:20:30,934 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: PacketResponder: BP-605282214-XXX.XXX.XXX.XXX-1498555165989:blk_1076520963_2780213, type=LAST_IN_PIPELINE, downstreams=0:[] terminating
2017-07-18 20:20:47,191 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: opWriteBlock BP-605282214-XXX.XXX.XXX.XXX-1498555165989:blk_1076520963_2780213 received exception java.io.IOException: Premature EOF from inputStream
2017-07-18 20:20:47,191 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: Block pool BP-605282214-XXX.XXX.XXX.XXX-1498555165989 (Datanode Uuid d4f1b1f7-0636-483d-91e8-4780b73fb392) service to sda1/XXX.XXX.XXX.XXX:9000 beginning handsh
ake with NN
2017-07-18 20:20:48,073 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: sda2:50010:DataXceiver error processing WRITE_BLOCK operation  src: /XXX.XXX.XXX.XXX:43840 dst: /XXX.XXX.XXX.XXX:50010
java.io.IOException: Premature EOF from inputStream
        at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:201)
        at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doReadFully(PacketReceiver.java:213)
        at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doRead(PacketReceiver.java:134)
        at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.receiveNextPacket(PacketReceiver.java:109)
        at org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receivePacket(BlockReceiver.java:501)
        at org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:895)
        at org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:801)
        at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:137)
        at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:74)
        at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:253)
        at java.lang.Thread.run(Thread.java:745)
2017-07-18 20:20:48,073 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: sda2:50010:DataXceiver error processing WRITE_BLOCK operation  src: /166.104.112.69:45343 dst: /XXX.XXX.XXX.XXX:50010
java.io.IOException: Premature EOF from inputStream
        at org.apache.hadoop.io.IOUtils.readFully(IOUtils.java:201)
        at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doReadFully(PacketReceiver.java:213)
        at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.doRead(PacketReceiver.java:134)
        at org.apache.hadoop.hdfs.protocol.datatransfer.PacketReceiver.receiveNextPacket(PacketReceiver.java:109)
        at org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receivePacket(BlockReceiver.java:501)
        at org.apache.hadoop.hdfs.server.datanode.BlockReceiver.receiveBlock(BlockReceiver.java:895)
        at org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:801)
        at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:137)
        at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:74)
        at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:253)
        at java.lang.Thread.run(Thread.java:745)
2017-07-18 20:20:57,083 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: Block pool Block pool BP-605282214-XXX.XXX.XXX.XXX-1498555165989 (Datanode Uuid d4f1b1f7-0636-483d-91e8-4780b73fb392) service to sda1/XXX.XXX.XXX.XXX:9000 succe
ssfully registered with NN
2017-07-18 20:21:00,044 INFO org.apache.hadoop.util.JvmPauseMonitor: Detected pause in JVM or host machine (eg GC): pause of approximately 1178ms
GC pool 'PS MarkSweep' had collection(s): count=2 time=1677ms
2017-07-18 20:21:05,452 INFO org.apache.hadoop.util.JvmPauseMonitor: Detected pause in JVM or host machine (eg GC): pause of approximately 2133ms
GC pool 'PS MarkSweep' had collection(s): count=3 time=2632ms
2017-07-18 20:21:12,342 INFO org.apache.hadoop.util.JvmPauseMonitor: Detected pause in JVM or host machine (eg GC): pause of approximately 1229ms
GC pool 'PS MarkSweep' had collection(s): count=2 time=1729ms
2017-07-18 20:21:14,056 INFO org.apache.hadoop.util.JvmPauseMonitor: Detected pause in JVM or host machine (eg GC): pause of approximately 1214ms
GC pool 'PS MarkSweep' had collection(s): count=2 time=1713ms
2017-07-18 20:21:28,386 WARN org.apache.hadoop.hdfs.server.datanode.DataNode: Unexpected exception in block pool Block pool BP-605282214-XXX.XXX.XXX.XXX-1498555165989 (Datanode Uuid d4f1b1f7-0636-483d-91e8-4780b73fb392) service to sda1/1
66.104.112.43:9000
java.lang.OutOfMemoryError: Java heap space
2017-07-18 20:21:28,386 WARN org.apache.hadoop.hdfs.server.datanode.DataNode: Ending block pool service for: Block pool BP-605282214-XXX.XXX.XXX.XXX-1498555165989 (Datanode Uuid d4f1b1f7-0636-483d-91e8-4780b73fb392) service to sda1/166.1
04.112.43:9000
2017-07-18 20:21:29,958 INFO org.apache.hadoop.util.JvmPauseMonitor: Detected pause in JVM or host machine (eg GC): pause of approximately 1205ms
GC pool 'PS MarkSweep' had collection(s): count=2 time=1704ms
2017-07-18 20:21:40,231 INFO org.apache.hadoop.util.JvmPauseMonitor: Detected pause in JVM or host machine (eg GC): pause of approximately 1431ms
GC pool 'PS MarkSweep' had collection(s): count=2 time=1931ms
2017-07-18 20:21:45,597 INFO org.apache.hadoop.util.JvmPauseMonitor: Detected pause in JVM or host machine (eg GC): pause of approximately 3310ms
GC pool 'PS MarkSweep' had collection(s): count=4 time=3808ms
2017-07-18 20:21:55,800 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: Removed Block pool BP-605282214-XXX.XXX.XXX.XXX-1498555165989 (Datanode Uuid d4f1b1f7-0636-483d-91e8-4780b73fb392)
2017-07-18 20:21:58,707 INFO org.apache.hadoop.util.JvmPauseMonitor: Detected pause in JVM or host machine (eg GC): pause of approximately 5945ms
GC pool 'PS MarkSweep' had collection(s): count=12 time=13105ms
2017-07-18 20:22:00,356 INFO org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl: Removing block pool BP-605282214-XXX.XXX.XXX.XXX-1498555165989
2017-07-18 20:22:03,000 WARN org.apache.hadoop.hdfs.server.datanode.DataNode: Exiting Datanode
2017-07-18 20:22:03,001 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 0
2017-07-18 20:22:03,002 INFO org.apache.hadoop.util.JvmPauseMonitor: Detected pause in JVM or host machine (eg GC): pause of approximately 1085ms
GC pool 'PS MarkSweep' had collection(s): count=1 time=1233ms
2017-07-18 20:22:03,003 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at sda2/XXX.XXX.XXX.XXX
************************************************************/