启动HBASE，java.lang.ClassNotFoundException:org.apache.htrace.SamplerBuilder [英] Starting HBASE, java.lang.ClassNotFoundException: org.apache.htrace.SamplerBuilder
问题描述
我正在尝试使用start-hbase.sh启动HBASE，但是出现错误:java.lang.ClassNotFoundException: org.apache.htrace.SamplerBuilder.
I am trying to start HBASE with start-hbase.sh, however, I get the error: java.lang.ClassNotFoundException: org.apache.htrace.SamplerBuilder.
我尝试将各种.jar添加到各种文件夹(如其他线程中所建议)，但是没有任何效果.我正在使用Hadoop 3.11和HBase 2.10，这是(结束)错误日志.
I have tried to add various .jar's to various folders (as suggested in other threads) but nothing works. I am using Hadoop 3.11 and HBase 2.10 Here is the (end of the) error log.
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$Cache.get(FileSystem.java:2685)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:373)
at org.apache.hadoop.fs.Path.getFileSystem(Path.java:295)
at org.apache.hadoop.hbase.util.CommonFSUtils.getRootDir(CommonFSUtils.java:358)
at org.apache.hadoop.hbase.util.CommonFSUtils.isValidWALRootDir(CommonFSUtils.java:407)
at org.apache.hadoop.hbase.util.CommonFSUtils.getWALRootDir(CommonFSUtils.java:383)
at org.apache.hadoop.hbase.regionserver.HRegionServer.initializeFileSystem(HRegionServer.java:691)
at org.apache.hadoop.hbase.regionserver.HRegionServer.<init>(HRegionServer.java:600)
at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:484)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:488)
at org.apache.hadoop.hbase.master.HMaster.constructMaster(HMaster.java:2965)
... 5 more
Caused by: java.lang.ClassNotFoundException: org.apache.htrace.SamplerBuilder
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:190)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
... 25 more
推荐答案
HBase 2.1.0发行版使用HTrace，这是一个正在孵化的Apache Foundation项目.
HBase 2.1.0 release uses HTrace, that is an incubating Apache Foundation project.
HBase lib文件夹client-facing-thirdparty中有一个用于第三方库的文件夹.您需要将htrace-core-3.1.0-incubating.jar从那里复制到HBase lib目录. (请参阅参考资料)
There is a folder for 3rd-party libraries in HBase lib folder, client-facing-thirdparty. You need to copy htrace-core-3.1.0-incubating.jar from there to the HBase lib directory. (see reference)
There is also another solution at Cloudera Community that changes a configuration instead of adding the library manually.
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