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我想要將文件從外部Windows服務器上傳到不同服務器中的Hdfs。 Hdfs是該服務器中cloudera docker容器的一部分。將文件從服務器上傳到另一臺服務器中的Hdfs
我連接到HDFS從Windows服務器如下：
Configuration conf = new Configuration();
conf.set("fs.defaultFS", "hdfs://%HDFS_SERVER_IP%:8020");
fs = FileSystem.get(conf);
當我打電話fs.copyFromLocalFile(localFilePath, hdfsFilePath);，它會拋出異常下方，並創建文件，而無需在HDFS中的任何內容。 ：
org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /user/test/test.txt could only be replicated to 0 nodes instead of minReplication (=1). There are 1 datanode(s) running and 1 node(s) are excluded in this operation.
at org.apache.hadoop.hdfs.server.blockmanagement.BlockManager.chooseTarget4NewBlock(BlockManager.java:1595)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:3287)
at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:677)
at org.apache.hadoop.hdfs.server.namenode.AuthorizationProviderProxyClientProtocol.addBlock(AuthorizationProviderProxyClientProtocol.java:213)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:485)
at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1073)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2086)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2082)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2080)
at org.apache.hadoop.ipc.Client.call(Client.java:1475)
at org.apache.hadoop.ipc.Client.call(Client.java:1412)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
at com.sun.proxy.$Proxy15.addBlock(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:418)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:191)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
at com.sun.proxy.$Proxy16.addBlock(Unknown Source)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.locateFollowingBlock(DFSOutputStream.java:1455)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1251)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:448)
而且似乎在數據節點的問題，以下是從它的日誌複製：
重試連接到服務器：0.0.0.0/0.0.0.0:8022。已經嘗試過0 次（s）;重試的政策是 RetryUpToMaximumCountWithFixedSleep（maxRetries = 10，休眠時間= 1000 毫秒）
我格式化的數據節點，並重新啓動HDFS但仍無法上傳文件在這種情況下。除了閱讀，寫文件等其他功能，配置文件也可以在本地系統和Hdfs在同一臺服務器上傳輸文件。
服務器連接到代理服務器，我配置了Hdfs的Docker容器的代理環境。通過在不同服務器之間使用Hdfs Java Api來傳輸文件如何？
更新1：
HDFS dfsadmin -report：
17/04/05 07:14:02 INFO client.RMProxy: Connecting to ResourceManager at /127.0.0.1:8032
Total Nodes:1
Node-Id Node-State Node-Http-Address Number-of-Running-Containers
quickstart.cloudera:37449 RUNNING quickstart.cloudera:8042 0
[[email protected] conf]# hdfs dfsadmin -report
Configured Capacity: 211243687936 (196.74 GB)
Present Capacity: 78773199014 (73.36 GB)
DFS Remaining: 77924307110 (72.57 GB)
DFS Used: 848891904 (809.57 MB)
DFS Used%: 1.08%
Under replicated blocks: 0
Blocks with corrupt replicas: 0
Missing blocks: 0
Missing blocks (with replication factor 1): 0
-------------------------------------------------
Live datanodes (1):
Name: XXXX:50010 (quickstart.cloudera)
Hostname: quickstart.cloudera
Decommission Status : Normal
Configured Capacity: 211243687936 (196.74 GB)
DFS Used: 848891904 (809.57 MB)
Non DFS Used: 132470488922 (123.37 GB)
DFS Remaining: 77924307110 (72.57 GB)
DFS Used%: 0.40%
DFS Remaining%: 36.89%
Configured Cache Capacity: 0 (0 B)
Cache Used: 0 (0 B)
Cache Remaining: 0 (0 B)
Cache Used%: 100.00%
Cache Remaining%: 0.00%
Xceivers: 6
Last contact: Wed Apr 05 07:15:00 UTC 2017
紗線節點-list -all：
17/04/05 07:14:02 INFO client.RMProxy: Connecting to ResourceManager at /127.0.0.1:8032
Total Nodes:1
Node-Id Node-State Node-Http-Address Number-of-Running-Containers
quickstart.cloudera:37449 RUNNING quickstart.cloudera:8042 0
芯-site.xml中：
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://quickstart.cloudera:8020</value>
</property>
<!-- OOZIE proxy user setting -->
<property>
<name>hadoop.proxyuser.oozie.hosts</name>
<value>*</value>
</property>
<property>
<name>hadoop.proxyuser.oozie.groups</name>
<value>*</value>
</property>
<!-- HTTPFS proxy user setting -->
<property>
<name>hadoop.proxyuser.httpfs.hosts</name>
<value>*</value>
</property>
<property>
<name>hadoop.proxyuser.httpfs.groups</name>
<value>*</value>
</property>
<!-- Llama proxy user setting -->
<property>
<name>hadoop.proxyuser.llama.hosts</name>
<value>*</value>
</property>
<property>
<name>hadoop.proxyuser.llama.groups</name>
<value>*</value>
</property>
<!-- Hue proxy user setting -->
<property>
<name>hadoop.proxyuser.hue.hosts</name>
<value>*</value>
</property>
<property>
<name>hadoop.proxyuser.hue.groups</name>
<value>*</value>
</property>
</configuration>
HDFS-site.xml中：
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<!-- Immediately exit safemode as soon as one DataNode checks in.
On a multi-node cluster, these configurations must be removed. -->
<property>
<name>dfs.safemode.extension</name>
<value>0</value>
</property>
<property>
<name>dfs.safemode.min.datanodes</name>
<value>1</value>
</property>
<property>
<name>dfs.permissions.enabled</name>
<value>false</value>
</property>
<property>
<name>dfs.permissions</name>
<value>false</value>
</property>
<property>
<name>dfs.safemode.min.datanodes</name>
<value>1</value>
</property>
<property>
<name>dfs.webhdfs.enabled</name>
<value>true</value>
</property>
<property>
<name>hadoop.tmp.dir</name>
<value>/var/lib/hadoop-hdfs/cache/${user.name}</value>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>/var/lib/hadoop-hdfs/cache/${user.name}/dfs/name</value>
</property>
<property>
<name>dfs.namenode.checkpoint.dir</name>
<value>/var/lib/hadoop-hdfs/cache/${user.name}/dfs/namesecondary</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>/var/lib/hadoop-hdfs/cache/${user.name}/dfs/data</value>
</property>
<property>
<name>dfs.namenode.rpc-bind-host</name>
<value>0.0.0.0</value>
</property>
<property>
<name>dfs.namenode.servicerpc-address</name>
<value>0.0.0.0:8022</value>
</property>
<property>
<name>dfs.https.address</name>
<value>0.0.0.0:50470</value>
</property>
<property>
<name>dfs.namenode.http-address</name>
<value>0.0.0.0:50070</value>
</property>
<property>
<name>dfs.datanode.address</name>
<value>0.0.0.0:50010</value>
</property>
<property>
<name>dfs.datanode.ipc.address</name>
<value>0.0.0.0:50020</value>
</property>
<property>
<name>dfs.datanode.http.address</name>
<value>0.0.0.0:50075</value>
</property>
<property>
<name>dfs.datanode.https.address</name>
<value>0.0.0.0:50475</value>
</property>
<property>
<name>dfs.namenode.secondary.http-address</name>
<value>0.0.0.0:50090</value>
</property>
<property>
<name>dfs.namenode.secondary.https-address</name>
<value>0.0.0.0:50495</value>
</property>
<!-- Impala configuration -->
<property>
<name>dfs.datanode.hdfs-blocks-metadata.enabled</name>
<value>true</value>
</property>
<property>
<name>dfs.client.file-block-storage-locations.timeout.millis</name>
<value>10000</value>
</property>
<property>
<name>dfs.client.read.shortcircuit</name>
<value>true</value>
</property>
<property>
<name>dfs.domain.socket.path</name>
<value>/var/run/hadoop-hdfs/dn._PORT</value>
</property>
</configuration>
你從哪裏運行這段代碼？它必須位於Windows Server上。還發布完整的堆棧跟蹤。 – franklinsijo
如何初始化文件系統？ – Serhiy
datanode是否有足夠的空間！添加'hdfs dfsadmin -report'，'yarn node -list -all'和'core-site.xml'，'hdfs-site.xml'屬性的輸出。 – franklinsijo