HBase 提示：ERROR: KeeperErrorCode = NoNode for /hbase/master_no node for hbase master

环境配置：

Hadoop-3.0.3

HBase-2.1.0

ZooKeeper-3.4.12

问题说明：

#切换至HBase-2.1.0 的安装目录下的bin文件夹
cd /usr/local/hadoop/hbase-2.1.0/bin
 
#启动HBase-2.1.0 服务
start-hbase.sh
 
#启动HBase-2.1.0 的shell 命令窗口，执行如下指令
hbase shell
 
#验证HBase 服务是否成功时，出现如下错误信息：
[root@master bin]# hbase shell
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/local/hadoop/hadoop-3.0.3/share/hadoop/common/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/local/hadoop/hbase-2.1.0/lib/client-facing-thirdparty/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
HBase Shell
Use "help" to get list of supported commands.
Use "exit" to quit this interactive shell.
Version 2.1.0, re1673bb0bbfea21d6e5dba73e013b09b8b49b89b, Tue Jul 10 17:26:48 CST 2018
Took 0.0021 seconds                                                                                                                                         
hbase(main):001:0> status
 
ERROR: KeeperErrorCode = NoNode for /hbase/master
 
For usage try 'help "status"'
 
Took 8.2867 seconds             

查看HBase-2.1.0 的错误日志文件夹(/usr/local/hadoop/hbase-2.1.0/logs)下，打印的错误日志信息：

java.lang.NoClassDefFoundError: org/apache/htrace/SamplerBuilder
    at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:635)
    at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:619)
    at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:149)
    at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2669)
    at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:94)
    at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2703)
    at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2685)
    at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:373)
    at org.apache.hadoop.fs.Path.getFileSystem(Path.java:295)
    at org.apache.hadoop.hbase.util.CommonFSUtils.getRootDir(CommonFSUtils.java:358)
    at org.apache.hadoop.hbase.util.CommonFSUtils.isValidWALRootDir(CommonFSUtils.java:407)
    at org.apache.hadoop.hbase.util.CommonFSUtils.getWALRootDir(CommonFSUtils.java:383)
    at org.apache.hadoop.hbase.regionserver.HRegionServer.initializeFileSystem(HRegionServer.java:691)
    at org.apache.hadoop.hbase.regionserver.HRegionServer.<init>(HRegionServer.java:600)
    at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:484)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:2965)
    at org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:236)
    at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:140)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:149)
    at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:2983)
Caused by: java.lang.ClassNotFoundException: org.apache.htrace.SamplerBuilder
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 25 more
2018-08-01 23:30:33,794 ERROR [main] master.HMasterCommandLine: Master exiting
java.lang.RuntimeException: Failed construction of Master: class org.apache.hadoop.hbase.master.HMaster. 
    at org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:2972)
    at org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:236)
    at org.apache.hadoop.hbase.master.HMasterCommandLine.run(HMasterCommandLine.java:140)
    at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
    at org.apache.hadoop.hbase.util.ServerCommandLine.doMain(ServerCommandLine.java:149)
    at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:2983)
Caused by: java.lang.NoClassDefFoundError: org/apache/htrace/SamplerBuilder
    at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:635)
    at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:619)
    at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:149)
    at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2669)
    at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:94)
    at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2703)
    at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2685)
    at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:373)
    at org.apache.hadoop.fs.Path.getFileSystem(Path.java:295)
    at org.apache.hadoop.hbase.util.CommonFSUtils.getRootDir(CommonFSUtils.java:358)
    at org.apache.hadoop.hbase.util.CommonFSUtils.isValidWALRootDir(CommonFSUtils.java:407)
    at org.apache.hadoop.hbase.util.CommonFSUtils.getWALRootDir(CommonFSUtils.java:383)
    at org.apache.hadoop.hbase.regionserver.HRegionServer.initializeFileSystem(HRegionServer.java:691)
    at org.apache.hadoop.hbase.regionserver.HRegionServer.<init>(HRegionServer.java:600)
    at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:484)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:2965)
    ... 5 more
Caused by: java.lang.ClassNotFoundException: org.apache.htrace.SamplerBuilder
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 25 more

解决办法：

将/usr/local/hadoop/hbase-2.1.0/lib/client-facing-thirdparty/htrace-core-3.1.0-incubating.jar 文件拷贝至/usr/local/hadoop/hbase-2.1.0/lib文件夹中 ,执行如下指令：

[root@master client-facing-thirdparty]# cp /usr/local/hadoop/hbase-2.1.0/lib/client-facing-thirdparty/htrace-core-3.1.0-incubating.jar /usr/local/hadoop/hbase-2.1.0/lib

拷贝相关jar 文件后，重新启动HBase-2.1.0 ，验证HBase 服务是否正常启动。但是shell 窗口还是提示错误信息，错误的日志内容如下：

java.lang.IllegalStateException: The procedure WAL relies on the ability to hsync for proper operation during component failures, but the underlying filesystem does not support doing so. Please check the config value of 'hbase.procedure.store.wal.use.hsync' to set the desired level of robustness and ensure the config value of 'hbase.wal.dir' points to a FileSystem mount that can provide it.

解决版本：

修改HBase-2.1.0的hbase-site.xml,添加如下内容：

<property>
<name>hbase.unsafe.stream.capability.enforce</name>
<value>false</value>
</property>

重新启动HBase-2.1.0 服务,执行相关指令结果如下：

[root@master bin]# hbase shell
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/usr/local/hadoop/hadoop-3.0.3/share/hadoop/common/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/usr/local/hadoop/hbase-2.1.0/lib/client-facing-thirdparty/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
HBase Shell
Use "help" to get list of supported commands.
Use "exit" to quit this interactive shell.
Version 2.1.0, re1673bb0bbfea21d6e5dba73e013b09b8b49b89b, Tue Jul 10 17:26:48 CST 2018
Took 0.0030 seconds                                                                                                                                         
hbase(main):001:0> status
1 active master, 0 backup masters, 2 servers, 0 dead, 1.0000 average load
Took 0.5673 seconds                                                                                                                                         
hbase(main):002:0> list
TABLE                                                                                                                                                       
0 row(s)
Took 0.0435 seconds                                                                                                                                         
=> []
hbase(main):003:0> exit