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Ingredients：

Language

Java：Java SE Development Kit 8u162(Oracle Java Archive)，Linux下安装JDK修改环境变量
Hadoop：hadoop-2.9.1.tar.gz（Apache Hadoop Releases Downloads， All previous releases of Hadoop are available from the Apache release archive site）
HBase：hbase-2.1.2-bin.tar.gz（mirrors.tuna.tsinghua.edu.cn，Downloads，Apache HBASE Mirrors），Apache HBase ™ Reference Guide

先说明一下，这个错误及后面的解决办法与HBase的版本有关，能够看出来，HBase对版本的要求还是非常苛刻的，这在HBase官网中对Hadoop版本的要求中就能够看出来。

1 问题1：java.lang.NoClassDefFoundError: org/apache/htrace/SamplerBuilder

1.1 错误

安装HBase官网Apache HBase ™ Reference Guide搭建HBase的时候，正常启动：

[root@shizhi002 hbase-2.1.2]# ./bin/start-hbase.sh 
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/opt/hadoop/hadoop-2.9.1/share/hadoop/common/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/opt/hbase/hbase-2.1.2/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]
running master, logging to /opt/hbase/hbase-2.1.2/bin/../logs/hbase-root-master-shizhi002.out
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/opt/hadoop/hadoop-2.9.1/share/hadoop/common/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/opt/hbase/hbase-2.1.2/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]

没有任何启动成功的反应，查看日志：

tail -f logs/hbase-root-master-shizhi002.log

发现启动过程报错：

java.lang.NoClassDefFoundError: org/apache/htrace/SamplerBuilder
	at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:644)
	at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:628)
	at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:149)
	at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2667)
	at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:93)
	at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2701)
	at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2683)
	at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:372)
	at org.apache.hadoop.fs.Path.getFileSystem(Path.java:295)
	at org.apache.hadoop.hbase.util.CommonFSUtils.getRootDir(CommonFSUtils.java:362)
	at org.apache.hadoop.hbase.util.CommonFSUtils.isValidWALRootDir(CommonFSUtils.java:411)
	at org.apache.hadoop.hbase.util.CommonFSUtils.getWALRootDir(CommonFSUtils.java:387)
	at org.apache.hadoop.hbase.regionserver.HRegionServer.initializeFileSystem(HRegionServer.java:697)
	at org.apache.hadoop.hbase.regionserver.HRegionServer.<init>(HRegionServer.java:606)
	at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:489)
	at org.apache.hadoop.hbase.master.HMasterCommandLine$LocalHMaster.<init>(HMasterCommandLine.java:308)
	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.util.JVMClusterUtil.createMasterThread(JVMClusterUtil.java:132)
	at org.apache.hadoop.hbase.LocalHBaseCluster.addMaster(LocalHBaseCluster.java:227)
	at org.apache.hadoop.hbase.LocalHBaseCluster.<init>(LocalHBaseCluster.java:174)
	at org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:229)
	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:3103)
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$AppClassLoader.loadClass(Launcher.java:338)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 28 more
2019-01-16 15:06:08,129 ERROR [main] master.HMasterCommandLine: Master exiting
java.lang.RuntimeException: Failed construction of Master: class org.apache.hadoop.hbase.master.HMasterCommandLine$LocalHMasterorg.apache.htrace.SamplerBuilder
	at org.apache.hadoop.hbase.util.JVMClusterUtil.createMasterThread(JVMClusterUtil.java:137)
	at org.apache.hadoop.hbase.LocalHBaseCluster.addMaster(LocalHBaseCluster.java:227)
	at org.apache.hadoop.hbase.LocalHBaseCluster.<init>(LocalHBaseCluster.java:174)
	at org.apache.hadoop.hbase.master.HMasterCommandLine.startMaster(HMasterCommandLine.java:229)
	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:3103)
Caused by: java.lang.NoClassDefFoundError: org/apache/htrace/SamplerBuilder
	at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:644)
	at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:628)
	at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:149)
	at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2667)
	at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:93)
	at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2701)
	at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2683)
	at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:372)
	at org.apache.hadoop.fs.Path.getFileSystem(Path.java:295)
	at org.apache.hadoop.hbase.util.CommonFSUtils.getRootDir(CommonFSUtils.java:362)
	at org.apache.hadoop.hbase.util.CommonFSUtils.isValidWALRootDir(CommonFSUtils.java:411)
	at org.apache.hadoop.hbase.util.CommonFSUtils.getWALRootDir(CommonFSUtils.java:387)
	at org.apache.hadoop.hbase.regionserver.HRegionServer.initializeFileSystem(HRegionServer.java:697)
	at org.apache.hadoop.hbase.regionserver.HRegionServer.<init>(HRegionServer.java:606)
	at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:489)
	at org.apache.hadoop.hbase.master.HMasterCommandLine$LocalHMaster.<init>(HMasterCommandLine.java:308)
	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.util.JVMClusterUtil.createMasterThread(JVMClusterUtil.java:132)
	... 7 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:338)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 28 more

1.2 解决

按照网上的一些办法，可以解决。

复制文件：

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[root@shizhi002 hbase-2.1.2]# cp ./lib/client-facing-thirdparty/htrace-core-3.1.0-incubating.jar ./lib/

原来的错误解决了，又遇到了新的错误：

2 错误2：java.lang.NoClassDefFoundError: Could not initialize class org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper

2.1 错误

2019-01-16 15:26:44,501 ERROR [RS_OPEN_META-regionserver/shizhi002:16020-0] handler.OpenRegionHandler: Failed open of region=hbase:meta,,1.1588230740
java.lang.NoClassDefFoundError: Could not initialize class org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper
	at org.apache.hadoop.hbase.io.asyncfs.AsyncFSOutputHelper.createOutput(AsyncFSOutputHelper.java:51)
	at org.apache.hadoop.hbase.regionserver.wal.AsyncProtobufLogWriter.initOutput(AsyncProtobufLogWriter.java:167)
	at org.apache.hadoop.hbase.regionserver.wal.AbstractProtobufLogWriter.init(AbstractProtobufLogWriter.java:166)
	at org.apache.hadoop.hbase.wal.AsyncFSWALProvider.createAsyncWriter(AsyncFSWALProvider.java:113)
	at org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL.createWriterInstance(AsyncFSWAL.java:612)
	at org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL.createWriterInstance(AsyncFSWAL.java:124)
	at org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL.rollWriter(AbstractFSWAL.java:756)
	at org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL.rollWriter(AbstractFSWAL.java:486)
	at org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL.<init>(AsyncFSWAL.java:251)
	at org.apache.hadoop.hbase.wal.AsyncFSWALProvider.createWAL(AsyncFSWALProvider.java:73)
	at org.apache.hadoop.hbase.wal.AsyncFSWALProvider.createWAL(AsyncFSWALProvider.java:48)
	at org.apache.hadoop.hbase.wal.AbstractFSWALProvider.getWAL(AbstractFSWALProvider.java:152)
	at org.apache.hadoop.hbase.wal.AbstractFSWALProvider.getWAL(AbstractFSWALProvider.java:60)
	at org.apache.hadoop.hbase.wal.WALFactory.getWAL(WALFactory.java:284)
	at org.apache.hadoop.hbase.regionserver.HRegionServer.getWAL(HRegionServer.java:2104)
	at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.openRegion(OpenRegionHandler.java:284)
	at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler.process(OpenRegionHandler.java:108)
	at org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:104)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

2.2 解决

参考了：

RegionServer因无法初始化对HDFS的访问而中止

HBase 2.0.1 with Hadoop 2.8.4 causes NoSuchMethodException

第2篇文章就提到了：

<property> 
<name>hbase.wal.provider</name> 
<value>filesystem</value> 
</property> 

Seems to fix it, but would be nice to actually try the fanout wal with 
hadoop 2.8.4.

按照说明修改一下，编辑配置文件：

vi conf/hbase-site.xml

加入内容：

<property>
                <name>hbase.wal.provider</name>
                <value>filesystem</value>
 </property>

再次启动log中就不报错了。

3 参考

HBase官网中对Hadoop版本的要求

启动hbase报java.lang.ClassNotFoundException: org.apache.htrace.SamplerBuilder

启动HBase2.1.0报错Caused by: java.lang.ClassNotFoundException: org.apache.htrace.SamplerBuilder