Hbase - kerberos认证异常
> 之前怎么认证都认证不上，问题找了好了，发现它的异常跟实际操作根本就对不上，死马当活马医，当时也是瞎改才好的，给大家伙记录记录。
```
KrbException: Server not found in Kerberos database (7) - LOOKING_UP_SERVER
>>> KdcAccessibility: remove storm1.starsriver.cn
at sun.security.krb5.KrbTgsRep.<init>(KrbTgsRep.java:73)
>>> KDCRep: init() encoding tag is 126 req type is 13
at sun.security.krb5.KrbTgsReq.getReply(KrbTgsReq.java:251)
>>>KRBError:
at sun.security.krb5.KrbTgsReq.sendAndGetCreds(KrbTgsReq.java:262)
cTime is Fri Aug 18 02:49:26 CST 2000 966538166000
sTime is Tue Jul 31 11:59:12 CST 2018 1533009552000
at sun.security.krb5.internal.CredentialsUtil.serviceCreds(CredentialsUtil.java:308)
suSec is 97126
error code is 7
at sun.security.krb5.internal.CredentialsUtil.acquireServiceCreds(CredentialsUtil.java:126)
error Message is Server not found in Kerberos database
at sun.security.krb5.Credentials.acquireServiceCreds(Credentials.java:458)
cname is hbase/lake.dounine.com@dounine.com
at sun.security.jgss.krb5.Krb5Context.initSecContext(Krb5Context.java:693)
sname is hbase/120.77.207.19@dounine.com
msgType is 30
at sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:248)
at sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:179)
at com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:192)
at org.apache.hadoop.hbase.security.AbstractHBaseSaslRpcClient.getInitialResponse(AbstractHBaseSaslRpcClient.java:131)
at org.apache.hadoop.hbase.security.NettyHBaseSaslRpcClientHandler$1.run(NettyHBaseSaslRpcClientHandler.java:108)
at org.apache.hadoop.hbase.security.NettyHBaseSaslRpcClientHandler$1.run(NettyHBaseSaslRpcClientHandler.java:104)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1746)
at org.apache.hadoop.hbase.security.NettyHBaseSaslRpcClientHandler.handlerAdded(NettyHBaseSaslRpcClientHandler.java:104)
at org.apache.hbase.thirdparty.io.netty.channel.DefaultChannelPipeline.callHandlerAdded0(DefaultChannelPipeline.java:606)
at org.apache.hbase.thirdparty.io.netty.channel.DefaultChannelPipeline.addFirst(DefaultChannelPipeline.java:187)
at org.apache.hbase.thirdparty.io.netty.channel.DefaultChannelPipeline.addFirst(DefaultChannelPipeline.java:380)
at org.apache.hbase.thirdparty.io.netty.channel.DefaultChannelPipeline.addFirst(DefaultChannelPipeline.java:359)
at org.apache.hadoop.hbase.ipc.NettyRpcConnection.saslNegotiate(NettyRpcConnection.java:200)
at org.apache.hadoop.hbase.ipc.NettyRpcConnection.access$800(NettyRpcConnection.java:71)
at org.apache.hadoop.hbase.ipc.NettyRpcConnection$3.operationComplete(NettyRpcConnection.java:273)
at org.apache.hadoop.hbase.ipc.NettyRpcConnection$3.operationComplete(NettyRpcConnection.java:261)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:507)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:500)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:479)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:420)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultPromise.trySuccess(DefaultPromise.java:104)
at org.apache.hbase.thirdparty.io.netty.channel.DefaultChannelPromise.trySuccess(DefaultChannelPromise.java:82)
at org.apache.hbase.thirdparty.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:306)
at org.apache.hbase.thirdparty.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:341)
at org.apache.hbase.thirdparty.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:633)
at org.apache.hbase.thirdparty.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:580)
at org.apache.hbase.thirdparty.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:497)
at org.apache.hbase.thirdparty.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:459)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
at org.apache.hbase.thirdparty.io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:138)
at java.lang.Thread.run(Thread.java:748)
Caused by: KrbException: Identifier doesn't match expected value (906)
at sun.security.krb5.internal.KDCRep.init(KDCRep.java:140)
at sun.security.krb5.internal.TGSRep.init(TGSRep.java:65)
at sun.security.krb5.internal.TGSRep.<init>(TGSRep.java:60)
at sun.security.krb5.KrbTgsRep.<init>(KrbTgsRep.java:55)
... 39 more
```
此错误需要将线上服务器的域名映射放入Client中的`/etc/hosts`
```
10.10.0.2 h1.demo.com
10.10.0.3 h2.demo.com
10.10.0.4 h3.demo.com
```
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