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From "Andrew Purtell (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-2418) add support for ZooKeeper authentication
Date Sun, 20 Nov 2011 19:47:53 GMT

     [ https://issues.apache.org/jira/browse/HBASE-2418?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Purtell updated HBASE-2418:
----------------------------------

       Resolution: Fixed
    Fix Version/s: 0.94.0
     Release Note: 
This adds support for protecting the state of HBase znodes on a multi-tenant ZooKeeper cluster.
This support requires ZK 3.4.0. It is a companion patch to HBASE-2742 (secure RPC), and HBASE-3025
(Coprocessor based access control).

SASL authentication of ZooKeeper clients with the quorum is handled in the ZK client independently
of HBase concerns. To enable strong ZK authentication, one must create a suitable JaaS configuration,
for example:

  Server {
    com.sun.security.auth.module.Krb5LoginModule required
    useKeyTab=true
    keyTab="/etc/hbase/conf/hbase.keytab"
    storeKey=true
    useTicketCache=false
    principal="zookeeper/$HOSTNAME";
  };
  Client {
    com.sun.security.auth.module.Krb5LoginModule required
    useKeyTab=true
    useTicketCache=false
    keyTab="/etc/hbase/conf/hbase.keytab"
    principal="hbase/$HOSTNAME";
  };

and then configure both the client and server processes to use it, for example in hbase-site.xml:

  HBASE_OPTS="${HBASE_OPTS} -Djava.security.auth.login.config=/etc/hbase/conf/jaas.conf"
  HBASE_OPTS="${HBASE_OPTS} -Dzookeeper.kerberos.removeHostFromPrincipal=true"
  HBASE_OPTS="${HBASE_OPTS} -Dzookeeper.kerberos.removeRealmFromPrincipal=true"

HBase will then secure all znodes but for a few world-readable read-only ones needed for clients
to look up region locations. All internal cluster operations will be protected from unauthenticated
ZK clients, or clients not authenticated to the HBase principal. Presumably the only ZK clients
authenticated to the HBase principal will be those embedded in the master and regionservers.

We will pull in a Hadoop artifact patched with HADOOP-7070 if building under the security
profile (-P security). 0.20.205 does not yet include HADOOP-7070. Without it, the JAAS configuration
required for secure operation of the ZooKeeper client will be ignored.
           Status: Resolved  (was: Patch Available)

Committed to trunk and 0.92.

TestZooKeeperACL passes with and without '-P security' locally. Does not break the build if
'-P security' is not specified. Test failures found by HudsonQA are not directly related to
this change.

                
> add support for ZooKeeper authentication
> ----------------------------------------
>
>                 Key: HBASE-2418
>                 URL: https://issues.apache.org/jira/browse/HBASE-2418
>             Project: HBase
>          Issue Type: Improvement
>          Components: master, regionserver
>            Reporter: Patrick Hunt
>            Assignee: Eugene Koontz
>            Priority: Critical
>              Labels: security, zookeeper
>             Fix For: 0.92.0, 0.94.0
>
>         Attachments: HBASE-2418-6.patch, HBASE-2418-6.patch
>
>
> Some users may run a ZooKeeper cluster in "multi tenant mode" meaning that more than
one client service would
> like to share a single ZooKeeper service instance (cluster). In this case the client
services typically want to protect
> their data (ZK znodes) from access by other services (tenants) on the cluster. Say you
are running HBase and Solr 
> and Neo4j, or multiple HBase instances, etc... having authentication/authorization on
the znodes is important for both 
> security and helping to ensure that services don't interact negatively (touch each other's
data).
> Today HBase does not have support for authentication or authorization. This should be
added to the HBase clients
> that are accessing the ZK cluster. In general it means calling addAuthInfo once after
a session is established:
> http://hadoop.apache.org/zookeeper/docs/current/api/org/apache/zookeeper/ZooKeeper.html#addAuthInfo(java.lang.String,
byte[])
> with a user specific credential, often times this is a shared secret or certificate.
You may be able to statically configure this
> in some cases (config string or file to read from), however in my case in particular
you may need to access it programmatically,
> which adds complexity as the end user may need to load code into HBase for accessing
the credential.
> Secondly you need to specify a non "world" ACL when interacting with znodes (create primarily):
> http://hadoop.apache.org/zookeeper/docs/current/api/org/apache/zookeeper/data/ACL.html
> http://hadoop.apache.org/zookeeper/docs/current/api/org/apache/zookeeper/ZooDefs.html
> Feel free to ping the ZooKeeper team if you have questions. It might also be good to
discuss with some 
> potential end users - in particular regarding how the end user can specify the credential.

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