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https://issues.apache.org/jira/browse/HDFS-9617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15088904#comment-15088904
]
zuotingbing commented on HDFS-9617:
-----------------------------------
Thank you for your reply.
my client code :
【main class】
public class HadoopLoader {
public HadoopLoader() {
}
public static void main(String[] args) {
HadoopLoader hadoopLoader = new HadoopLoader();
//上传数据
hadoopLoader.upload();
}
private void upload() {
new UploadProcess().upload();
}
====================================================================================================
public class UploadProcess {
private ExecutorService executorService;
private Map<String, Boolean> processingFileMap = new
ConcurrentHashMap<String, Boolean>();
public void upload() {
executorService =
Executors.newFixedThreadPool(HadoopLoader.CONFIG_PROPERTIES.getHandleNum());
for (int i = 0; i < 1000; i++) {
processLoad("/home/ztb/testdata/43.bmp",
"hdfs://10.43.156.157:9000/ztbtest");
}
}
private void processLoad(String filePathName, String hdfsFilePathName) {
LoadThread loadThread = new LoadThread(filePathName, hdfsFilePathName);
executorService.execute(loadThread);
}
}
===================================================================================================
public class LoadThread implements Runnable {
private static final org.apache.commons.logging.Log LOG =
LogFactory.getLog(LoadThread.class);
String filePathName; //数据文件完整名称（路径名+文件名）
String hdfsFilePathName; //数据文件完整名称（路径名+文件名）
public LoadThread(String filePathName, String hdfsFilePathName) {
this.filePathName = filePathName;
this.hdfsFilePathName = hdfsFilePathName;
}
public void writeToHdfs(String filePathName, String hdfsFilePathName) throws
IOException {
LOG.info("Start to upload " + filePathName + " to " + hdfsFilePathName);
Configuration conf = new Configuration();
FileSystem fs = FileSystem.get(URI.create(hdfsFilePathName), conf);
InputStream in = null;
OutputStream out = null;
Path hdfsFilePath;
try {
in = new BufferedInputStream(new FileInputStream(filePathName));
hdfsFilePath = new Path(hdfsFilePathName);
out = fs.create(hdfsFilePath);
IOUtils.copyBytes(in, out, conf);
} finally {
if (in != null) {
in.close();
}
if (out != null) {
out.close();
}
}
LOG.info("Finish uploading " + filePathName + " to " + hdfsFilePathName);
}
@Override
public void run() {
try {
writeToHdfs(filePathName, hdfsFilePathName);
} catch (IOException e) {
LOG.error(e.getMessage(), e);
}
}
}
i get java_pid8820.hprof when i set -XX:+HeapDumpOnOutOfMemoryError
> my java client use muti-thread to put a same file to a same hdfs uri, after
> no lease error，then client OutOfMemoryError
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-9617
> URL: https://issues.apache.org/jira/browse/HDFS-9617
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: zuotingbing
>
> org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.LeaseExpiredException):
> No lease on /Tmp2/43.bmp.tmp (inode 2913263): File does not exist. [Lease.
> Holder: DFSClient_NONMAPREDUCE_2084151715_1, pendingcreates: 250]
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.checkLease(FSNamesystem.java:3358)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.analyzeFileState(FSNamesystem.java:3160)
> at
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:3042)
> at
> org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:615)
> at
> org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.addBlock(AuthorizationProviderProxyClientProtocol.java:188)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:476)
> at
> org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:587)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1026)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2013)
> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2009)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1653)
> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2007)
> at org.apache.hadoop.ipc.Client.call(Client.java:1411)
> at org.apache.hadoop.ipc.Client.call(Client.java:1364)
> at
> org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:206)
> at com.sun.proxy.$Proxy14.addBlock(Unknown Source)
> at
> org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:391)
> at sun.reflect.GeneratedMethodAccessor66.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:187)
> at
> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
> at com.sun.proxy.$Proxy15.addBlock(Unknown Source)
> at
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.locateFollowingBlock(DFSOutputStream.java:1473)
> at
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1290)
> at
> org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:536)
> my java client(JVM -Xmx=2G) :
> jmap TOP15：
> num #instances #bytes class name
> ----------------------------------------------
> 1: 48072 2053976792 [B
> 2: 45852 5987568 <constMethodKlass>
> 3: 45852 5878944 <methodKlass>
> 4: 3363 4193112 <constantPoolKlass>
> 5: 3363 2548168 <instanceKlassKlass>
> 6: 2733 2299008 <constantPoolCacheKlass>
> 7: 533 2191696 [Ljava.nio.ByteBuffer;
> 8: 24733 2026600 [C
> 9: 31287 2002368
> org.apache.hadoop.hdfs.DFSOutputStream$Packet
> 10: 31972 767328 java.util.LinkedList$Node
> 11: 22845 548280 java.lang.String
> 12: 20372 488928 java.util.concurrent.atomic.AtomicLong
> 13: 3700 452984 java.lang.Class
> 14: 981 439576 <methodDataKlass>
> 15: 5583 376344 [S
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