Hadoop HA Hbase启动报UnknownHostException: mycluster
Hadoop HA 搭建hbase启动时只有HMaster起来,HRegionServer没有起来
查看报错信息为:
2019-08-31 19:17:14,212 ERROR [main] regionserver.HRegionServer: Failed construction RegionServer
java.lang.IllegalArgumentException: java.net.UnknownHostException: mycluster
at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:417)
at org.apache.hadoop.hdfs.NameNodeProxiesClient.createProxyWithClientProtocol(NameNodeProxiesClient.java:132)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:351)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:285)
at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:160)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2812)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:100)
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2849)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2831)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:389)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:356)
at org.apache.hadoop.hbase.util.CommonFSUtils.getRootDir(CommonFSUtils.java:362)
at org.apache.hadoop.hbase.util.CommonFSUtils.isValidWALRootDir(CommonFSUtils.java:412)
at org.apache.hadoop.hbase.util.CommonFSUtils.getWALRootDir(CommonFSUtils.java:388)
at org.apache.hadoop.hbase.regionserver.HRegionServer.initializeFileSystem(HRegionServer.java:723)
at org.apache.hadoop.hbase.regionserver.HRegionServer.<init>(HRegionServer.java:629)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.apache.hadoop.hbase.regionserver.HRegionServer.constructRegionServer(HRegionServer.java:3035)
at org.apache.hadoop.hbase.regionserver.HRegionServerCommandLine.start(HRegionServerCommandLine.java:63)
at org.apache.hadoop.hbase.regionserver.HRegionServerCommandLine.run(HRegionServerCommandLine.java:87)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:149)
at org.apache.hadoop.hbase.regionserver.HRegionServer.main(HRegionServer.java:3053)
Caused by: java.net.UnknownHostException: mycluster
... 26 more
2019-08-31 19:17:14,217 ERROR [main] regionserver.HRegionServerCommandLine: Region server exiting
java.lang.RuntimeException: Failed construction of Regionserver: class org.apache.hadoop.hbase.regionserver.HRegionServer
at org.apache.hadoop.hbase.regionserver.HRegionServer.constructRegionServer(HRegionServer.java:3038)
at org.apache.hadoop.hbase.regionserver.HRegionServerCommandLine.start(HRegionServerCommandLine.java:63)
at org.apache.hadoop.hbase.regionserver.HRegionServerCommandLine.run(HRegionServerCommandLine.java:87)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:149)
at org.apache.hadoop.hbase.regionserver.HRegionServer.main(HRegionServer.java:3053)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.apache.hadoop.hbase.regionserver.HRegionServer.constructRegionServer(HRegionServer.java:3035)
... 5 more
Caused by: java.lang.IllegalArgumentException: java.net.UnknownHostException: mycluster
at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:417)
at org.apache.hadoop.hdfs.NameNodeProxiesClient.createProxyWithClientProtocol(NameNodeProxiesClient.java:132)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:351)
at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:285)
at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:160)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2812)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:100)
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2849)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2831)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:389)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:356)
at org.apache.hadoop.hbase.util.CommonFSUtils.getRootDir(CommonFSUtils.java:362)
at org.apache.hadoop.hbase.util.CommonFSUtils.isValidWALRootDir(CommonFSUtils.java:412)
at org.apache.hadoop.hbase.util.CommonFSUtils.getWALRootDir(CommonFSUtils.java:388)
at org.apache.hadoop.hbase.regionserver.HRegionServer.initializeFileSystem(HRegionServer.java:723)
at org.apache.hadoop.hbase.regionserver.HRegionServer.<init>(HRegionServer.java:629)
... 10 more
Caused by: java.net.UnknownHostException: mycluster
由于无法找到mycluster
解决方法:
将hadoop/etc/中的 core-site.xml和hdfs-site.xml 复制到hbase的conf目录下,启动hbase就好了
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