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KrbException使用Zookeeper客户端连接到Hadoop群集-未知的\u服务器

hadoop apache-zookeeper

KrbException使用Zookeeper客户端连接到Hadoop群集-未知的\u服务器,hadoop,apache-zookeeper,kerberos,gssapi,Hadoop,Apache Zookeeper,Kerberos,Gssapi,我的Zookeeper客户端在连接Hadoop群集时遇到问题 这在Linux虚拟机上运行良好，但我使用的是Mac 我在JVM上设置了-Dsun.security.krb5.debug=true标志，并获得以下输出： Found ticket for solr@DDA.MYCO.COM to go to krbtgt/DDA.MYCO.COM@DDA.MYCO.COM expiring on Sat Apr 29 03:15:04 BST 2017 Entered Krb5Context.init

我的Zookeeper客户端在连接Hadoop群集时遇到问题

这在Linux虚拟机上运行良好，但我使用的是Mac

我在JVM上设置了
-Dsun.security.krb5.debug=true
标志，并获得以下输出：

Found ticket for solr@DDA.MYCO.COM to go to krbtgt/DDA.MYCO.COM@DDA.MYCO.COM expiring on Sat Apr 29 03:15:04 BST 2017
Entered Krb5Context.initSecContext with state=STATE_NEW
Found ticket for solr@DDA.MYCO.COM to go to krbtgt/DDA.MYCO.COM@DDA.MYCO.COM expiring on Sat Apr 29 03:15:04 BST 2017
Service ticket not found in the subject
>>> Credentials acquireServiceCreds: same realm
Using builtin default etypes for default_tgs_enctypes
default etypes for default_tgs_enctypes: 17 16 23.
>>> CksumType: sun.security.krb5.internal.crypto.RsaMd5CksumType
>>> EType: sun.security.krb5.internal.crypto.Aes128CtsHmacSha1EType
>>> KrbKdcReq send: kdc=oc-10-252-132-139.nat-ucfc2z3b.usdv1.mycloud.com UDP:88, timeout=30000, number of retries =3, #bytes=682
>>> KDCCommunication: kdc=oc-10-252-132-139.nat-ucfc2z3b.usdv1.mycloud.com UDP:88, timeout=30000,Attempt =1, #bytes=682
>>> KrbKdcReq send: #bytes read=217
>>> KdcAccessibility: remove oc-10-252-132-139.nat-ucfc2z3b.usdv1.mycloud.com
>>> KDCRep: init() encoding tag is 126 req type is 13
>>>KRBError:
     cTime is Thu Dec 24 11:18:15 GMT 2015 1450955895000
     sTime is Fri Apr 28 15:15:06 BST 2017 1493388906000
     suSec is 925863
     error code is 7
     error Message is Server not found in Kerberos database
     cname is solr@DDA.MYCO.COM
     sname is zookeeper/oc-10-252-132-160.nat-ucfc2z3b.usdv1.mycloud.com@DDA.MYCO.COM
     msgType is 30
KrbException: Server not found in Kerberos database (7) - UNKNOWN_SERVER
    at sun.security.krb5.KrbTgsRep.<init>(KrbTgsRep.java:73)
    at sun.security.krb5.KrbTgsReq.getReply(KrbTgsReq.java:251)
    at sun.security.krb5.KrbTgsReq.sendAndGetCreds(KrbTgsReq.java:262)
    at sun.security.krb5.internal.CredentialsUtil.serviceCreds(CredentialsUtil.java:308)
    at sun.security.krb5.internal.CredentialsUtil.acquireServiceCreds(CredentialsUtil.java:126)
    at sun.security.krb5.Credentials.acquireServiceCreds(Credentials.java:458)
    at sun.security.jgss.krb5.Krb5Context.initSecContext(Krb5Context.java:693)
    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.zookeeper.client.ZooKeeperSaslClient$2.run(ZooKeeperSaslClient.java:366)
    at org.apache.zookeeper.client.ZooKeeperSaslClient$2.run(ZooKeeperSaslClient.java:363)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:422)
    at org.apache.zookeeper.client.ZooKeeperSaslClient.createSaslToken(ZooKeeperSaslClient.java:362)
    at org.apache.zookeeper.client.ZooKeeperSaslClient.createSaslToken(ZooKeeperSaslClient.java:348)
    at org.apache.zookeeper.client.ZooKeeperSaslClient.sendSaslPacket(ZooKeeperSaslClient.java:420)
    at org.apache.zookeeper.client.ZooKeeperSaslClient.initialize(ZooKeeperSaslClient.java:458)
    at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1057)
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)
    ... 18 more
ERROR   2017-04-28 15:15:07,046 5539    org.apache.zookeeper.client.ZooKeeperSaslClient [main-SendThread(oc-10-252-132-160.nat-ucfc2z3b.usdv1.mycloud.com:2181)]    
An error: (java.security.PrivilegedActionException: javax.security.sasl.SaslException: GSS initiate failed 
[Caused by GSSException: No valid credentials provided 
(Mechanism level: Server not found in Kerberos database (7) - UNKNOWN_SERVER)]) 
occurred when evaluating Zookeeper Quorum Member's  received SASL token. 
This may be caused by Java's being unable to resolve the Zookeeper Quorum Member's hostname correctly. 
You may want to try to adding '-Dsun.net.spi.nameservice.provider.1=dns,sun' to your client's JVMFLAGS environment. 
Zookeeper Client will go to AUTH_FAILED state.
按照说明，我成功地将kerberos票证存储在一个文件中：

 >klist -c FILE:/tmp/krb5cc_501
Credentials cache: FILE:/tmp/krb5cc_501
    Principal: solr@DDA.MYCO.COM

Issued                Expires               Principal
Apr 28 17:10:25 2017  Apr 29 05:10:25 2017  krbtgt/DDA.MYCO.COM@DDA.MYCO.COM
我还尝试了堆栈跟踪中建议的JVM选项（
-Dsun.net.spi.nameservice.provider.1=dns，sun
），但这导致了另一个错误，即
客户端会话超时
，这表明此JVM参数首先阻止了客户端正确连接

==编辑==

似乎Kerberos的Mac版本不是最新的：

> krb5-config --version
Kerberos 5 release 1.7-prerelease
我刚刚尝试了
brew install krb5
安装新版本，然后调整路径以指向新版本

> krb5-config --version
Kerberos 5 release 1.15.1
这对结果没有任何影响

注意，这在我的Mac上的linux虚拟机上运行良好，使用完全相同的jaas.conf、keytab文件和krb5.conf

krb5.conf：

[libdefaults]
renew_lifetime = 7d
forwardable = true
  default_realm = DDA.MYCO.COM
  ticket_lifetime = 24h
  dns_lookup_realm = false
  dns_lookup_kdc = false


[realms]
  DDA.MYCO.COM = {
    admin_server = oc-10-252-132-139.nat-ucfc2z3b.usdv1.mycloud.com
    kdc = oc-10-252-132-139.nat-ucfc2z3b.usdv1.mycloud.com
  }
反向DNS： 我已检查是否可以使用反向DNS查找找到我连接的FQDN主机名：

> host 10.252.132.160
160.132.252.10.in-addr.arpa domain name pointer oc-10-252-132-160.nat-ucfc2z3b.usdv1.mycloud.com.
这与linux虚拟机对同一命令的响应完全相同

==WIRESHARK分析===

使用配置为使用系统键选项卡的Wireshark，可以在分析中获得更多细节

在这里，我发现失败的调用如下所示：

client -> host  AS-REQ
host -> client  AS-REP 
client -> host  AS-REQ
host -> client  AS-REP 
client -> host TGS-REQ  <-- this call is detailed below
host -> client KRB error KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN
下面是来自linux box的相应成功调用，随后是多个交换

Kerberos
    tgs-req
        pvno: 5
        msg-type: krb-tgs-req (12)
        padata: 1 item
        req-body
            Padding: 0
            kdc-options: 40000000 (forwardable)
            realm: DDA.MYCO.COM
            sname
                name-type: kRB5-NT-UNKNOWN (0)
                sname-string: 2 items
                    SNameString: zookeeper
                    SNameString: d59407.ddapoc.ucfc2z3b.usdv1.mycloud.com
            till: 1970-01-01 00:00:00 (UTC)
            nonce: 681936272
            etype: 3 items
                ENCTYPE: eTYPE-AES128-CTS-HMAC-SHA1-96 (17)
                ENCTYPE: eTYPE-DES3-CBC-SHA1 (16)
                ENCTYPE: eTYPE-ARCFOUR-HMAC-MD5 (23)
看起来客户端正在发送

oc-10-252-134-51.nat-ucfc2z3b.usdv1.mycloud.com
作为服务器主机，应在何时发送：

d59407.ddapoc.ucfc2z3b.usdv1.mycloud.com
所以问题是，我该如何解决这个问题？请记住，这是一段Java代码

My/etc/hosts具有以下功能：

Kerberos
tgs-req
    pvno: 5
    msg-type: krb-tgs-req (12)
    padata: 1 item
    req-body
        Padding: 0
        kdc-options: 40000000 (forwardable)
        realm: DDA.MYCO.COM
        sname
            name-type: kRB5-NT-UNKNOWN (0)
            sname-string: 2 items
                SNameString: zookeeper
                SNameString: oc-10-252-134-51.nat-ucfc2z3b.usdv1.mycloud.com
        till: 1970-01-01 00:00:00 (UTC)
        nonce: 797021964
        etype: 3 items
            ENCTYPE: eTYPE-AES128-CTS-HMAC-SHA1-96 (17)
            ENCTYPE: eTYPE-DES3-CBC-SHA1 (16)
            ENCTYPE: eTYPE-ARCFOUR-HMAC-MD5 (23)

10.252.132.160 b3e073.ddapoc.ucfc2z3b.usdv1.mycloud.com
10.252.134.51  d59407.ddapoc.ucfc2z3b.usdv1.mycloud.com
10.252.132.139 d7cc18.ddapoc.ucfc2z3b.usdv1.mycloud.com
我的krb5.conf文件有：

kdc = d7cc18.ddapoc.ucfc2z3b.usdv1.mycloud.com
kdc = b3e073.ddapoc.ucfc2z3b.usdv1.mycloud.com
kdc = d59407.ddapoc.ucfc2z3b.usdv1.mycloud.com
我尝试将
-Dsun.net.spi.nameservice.provider.1=文件、dns
添加为JVM参数，但得到了相同的结果

看起来像是DNS问题。 这能帮你解决问题吗？ 还有，是关于这个问题的问答

这也可能是因为。

我通过设置一个本地dnsmasq实例来提供正向和反向DNS查找，从而解决了这个问题

现在从命令行，
主机d59407.ddapoc.ucfc2z3b.usdv1.mycloud.com
返回
10.252.134.51

另见和

kdc = d7cc18.ddapoc.ucfc2z3b.usdv1.mycloud.com
kdc = b3e073.ddapoc.ucfc2z3b.usdv1.mycloud.com
kdc = d59407.ddapoc.ucfc2z3b.usdv1.mycloud.com