我试图使用HbaseTestingUtility测试我的Hbase代码。每次我使用下面的代码片段启动我的迷你群集时，我都会遇到异常。
public void startCluster()
{
File workingDirectory = new File("./");
Configuration conf = new Configuration();
System.setProperty("test.build.data", workingDirectory.getAbsolutePath());
conf.set("test.build.data", new File(workingDirectory, "zookeeper").getAbsolutePath());
conf.set("fs.default.name", "file:///");
conf.set("zookeeper.session.timeout", "180000");
conf.set("hbase.zookeeper.peerport", "2888");
conf.set("hbase.zookeeper.property.clientPort", "2181");
conf.addResource(new Path("conf/hbase-site1.xml"));
try
{
masterDir = new File(workingDirectory, "hbase");
conf.set(HConstants.HBASE_DIR, masterDir.toURI().toURL().toString());
}
catch (MalformedURLException e1)
{
logger.error(e1.getMessage());
}
Configuration hbaseConf = HBaseConfiguration.create(conf);
utility = new HBaseTestingUtility(hbaseConf);
// Change permission for dfs.data.dir, please refer
// https://issues.apache.org/jira/browse/HBASE-5711 for more details.
try
{
Process process = Runtime.getRuntime().exec("/bin/sh -c umask");
BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));
int rc = process.waitFor();
if (rc == 0)
{
String umask = br.readLine();
int umaskBits = Integer.parseInt(umask, 8);
int permBits = 0777 & ~umaskBits;
String perms = Integer.toString(permBits, 8);
logger.info("Setting dfs.datanode.data.dir.perm to " + perms);
utility.getConfiguration().set("dfs.datanode.data.dir.perm", perms);
}
else
{
logger.warn("Failed running umask command in a shell, nonzero return value");
}
}
catch (Exception e)
{
// ignore errors, we might not be running on POSIX, or "sh" might
// not be on the path
logger.warn("Couldn't get umask", e);
}
if (!checkIfServerRunning())
{
hTablePool = new HTablePool(conf, 1);
try
{
zkCluster = new MiniZooKeeperCluster(conf);
zkCluster.setDefaultClientPort(2181);
zkCluster.setTickTime(18000);
zkDir = new File(utility.getClusterTestDir().toString());
zkCluster.startup(zkDir);
utility.setZkCluster(zkCluster);
utility.startMiniCluster();
utility.getHBaseCluster().startMaster();
}
catch (Exception e)
{
e.printStackTrace();
logger.error(e.getMessage());
throw new RuntimeException(e);
}
}
}
我得到了如下例外情况。
2013-09-10 15:26:26 INFO ClientCnxn:849 - Socket connection established to localhost/127.0.0.1:2181, initiating session
2013-09-10 15:26:26 INFO ZooKeeperServer:839 - Client attempting to establish new session at /127.0.0.1:45934
2013-09-10 15:26:26 INFO ZooKeeperServer:595 - Established session 0x141074cd6150002 with negotiated timeout 180000 for client /127.0.0.1:45934
2013-09-10 15:26:26 INFO ClientCnxn:1207 - Session establishment complete on server localhost/127.0.0.1:2181, sessionid = 0x141074cd6150002, negotiated timeout = 180000
2013-09-10 15:26:26 INFO HBaseRPC:289 - Server at localhost/127.0.0.1:42926 could not be reached after 1 tries, giving up.
2013-09-10 15:26:26 WARN AssignmentManager:1714 - Failed assignment of -ROOT-,,0.70236052 to localhost,42926,1378806982623, trying to assign elsewhere instead; retry=0
org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed setting up proxy interface org.apache.hadoop.hbase.ipc.HRegionInterface to localhost/127.0.0.1:42926 after attempts=1
at org.apache.hadoop.hbase.ipc.HBaseRPC.handleConnectionException(HBaseRPC.java:291)
at org.apache.hadoop.hbase.ipc.HBaseRPC.waitForProxy(HBaseRPC.java:259)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHRegionConnection(HConnectionManager.java:1305)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHRegionConnection(HConnectionManager.java:1261)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getHRegionConnection(HConnectionManager.java:1248)
at org.apache.hadoop.hbase.master.ServerManager.getServerConnection(ServerManager.java:550)
at org.apache.hadoop.hbase.master.ServerManager.sendRegionOpen(ServerManager.java:483)
at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1664)
at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1387)
at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1362)
at org.apache.hadoop.hbase.master.AssignmentManager.assign(AssignmentManager.java:1357)
at org.apache.hadoop.hbase.master.AssignmentManager.assignRoot(AssignmentManager.java:2236)
at org.apache.hadoop.hbase.master.HMaster.assignRootAndMeta(HMaster.java:654)
at org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:551)
at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:362)
at java.lang.Thread.run(Thread.java:722)
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:692)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:207)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:525)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:489)
at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupConnection(HBaseClient.java:416)
at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClient.java:462)
at org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:1150)
at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:1000)
at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:150)
at com.sun.proxy.$Proxy20.getProtocolVersion(Unknown Source)
at org.apache.hadoop.hbase.ipc.WritableRpcEngine.getProxy(WritableRpcEngine.java:183)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:335)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:312)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:364)
at org.apache.hadoop.hbase.ipc.HBaseRPC.waitForProxy(HBaseRPC.java:236)
... 14 more
2013-09-10 15:26:26 WARN AssignmentManager:1736 - Unable to find a viable location to assign region -ROOT-,,0.70236052
2013-09-10 15:27:24 INFO audit:5677 - allowed=true ugi=aniket (auth:SIMPLE) ip=/127.0.0.1 cmd=listStatus src=/user/aniket/hbase/.oldlogs dst=null perm=null
2013-09-10 15:27:24 INFO audit:5677 - allowed=true ugi=aniket (auth:SIMPLE) ip=/127.0.0.1 cmd=listStatus src=/user/aniket/hbase/.archive dst=null perm=null
2013-09-10 15:28:24 INFO audit:5677 - allowed=true ugi=aniket (auth:SIMPLE) ip=/127.0.0.1 cmd=listStatus src=/user/aniket/hbase/.archive dst=null perm=null
2013-09-10 15:28:24 INFO audit:5677 - allowed=true ugi=aniket (auth:SIMPLE) ip=/127.0.0.1 cmd=listStatus src=/user/aniket/hbase/.oldlogs dst=null perm=null
2013-09-10 15:29:24 INFO audit:5677 - allowed=true ugi=aniket (auth:SIMPLE) ip=/127.0.0.1 cmd=listStatus src=/user/aniket/hbase/.oldlogs dst=null perm=null
2013-09-10 15:29:24 INFO audit:5677 - allowed=true ugi=aniket (auth:SIMPLE) ip=/127.0.0.1 cmd=listStatus src=/user/aniket/hbase/.archive dst=null perm=null
2013-09-10 15:29:42 ERROR MiniHBaseCluster:201 - Error starting cluster
java.lang.RuntimeException: Master not initialized after 200 seconds
at org.apache.hadoop.hbase.util.JVMClusterUtil.startup(JVMClusterUtil.java:206)
at org.apache.hadoop.hbase.LocalHBaseCluster.startup(LocalHBaseCluster.java:420)
at org.apache.hadoop.hbase.MiniHBaseCluster.init(MiniHBaseCluster.java:196)
at org.apache.hadoop.hbase.MiniHBaseCluster.<init>(MiniHBaseCluster.java:76)
at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniHBaseCluster(HBaseTestingUtility.java:635)
at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:609)
at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:557)
at org.apache.hadoop.hbase.HBaseTestingUtility.startMiniCluster(HBaseTestingUtility.java:526)
at HBaseTesting.startCluster(HBaseTesting.java:131)
at HBaseTesting.main(HBaseTesting.java:62)
2013-09-10 15:29:42 INFO HMaster:1635 - Cluster shutdown requested
2013-09-10 15:29:42 INFO HRegionServer:1666 - STOPPED: Shutdown requested
2013-09-10 15:29:42 INFO HBaseServer:1651 - Stopping server on 42926
任何人都可以帮我解决问题。
答案 0 :(得分：3)
这是我的解决方案。
我必须更新 / etc / hosts 文件。
两个利益条目是：
127.0.0.1 localhost
127.0.1.1 myhostname
我必须更改myhostname所指向的IP也指向 127.0.0.1。
我的 / etc / hosts 更新后如下：
127.0.0.1 localhost
127.0.0.1 myhostname
代码开始工作。
（假设是Linux服务器。将/ etc / hosts替换为操作系统的等效文件）
答案 1 :(得分：0)
将guava依赖项添加到Gradle文件中对我有用。
compile group: 'com.google.guava', name: 'guava', version: '14.0'