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https://issues.apache.org/jira/browse/HBASE-2742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13149859#comment-13149859
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jirapos...@reviews.apache.org commented on HBASE-2742:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1991/
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(Updated 2011-11-14 20:03:17.125142)


Review request for hbase.


Changes
-------

This update addresses the current review comments.

The only comment not addressed is Ted's suggestion in ZKSecretWatcher to 
attempt to remove the znode for any secret key that could not be deserialized.  
I need to look at the implications of this for the "leader" secret manager, as 
well as for potential upgrade scenarios.


Summary
-------

This patch creates a new secure RPC engine for HBase, which provides Kerberos 
based authentication of clients, and a token-based authentication mechanism for 
mapreduce jobs.  Primary components of the patch are:

- a new maven profile for secure Hadoop/HBase: hadoop-0.20S
  - Secure Hadoop dependent classes are separated under a pseudo-module in the 
security/ directory.  These source and test directories are only including if 
building the secure Hadoop profile
  - Currently the security classes get packaged with the regular HBase build 
artifacts.  We need a way to at least override project.version, so we can 
append something like a "-security" suffix indicating the additional security 
components.
  - The pseudo-module here is really a half-step forward.  It enables the 
security code to be optionally included in the build for now, and sets up the 
structure for a security module.  But we still will want to pursue full 
modularization (see HBASE-4336), which will allow packing the security code in 
a separate build artifact.

- a new RPC engine providing kerberos and token-based authentication: 
org.apache.hadoop.hbase.ipc.SecureRpcEngine
  - implementation under security/src/main/java/org/apache/hadoop/hbase/ipc/
  - The implementation classes extend the existing HBaseClient and HBaseServer 
to share as much of the RPC code as possible.  The main override is of the 
connection classes to allow control over the SASL negotiation of secure 
connections

- existing RPC changes
  - The existing HBaseClient and HBaseServer have been modified to make 
subclassing possible
  - All references to Hadoop UserGroupInformation have been replaced with 
org.apache.hadoop.hbase.security.User to insulate from future dependencies on 
specific Hadoop versions

- a coprocessor endpoint for obtaining new authentication tokens: 
TokenProvider, and supporting classes for token generation and synchronization 
(incorporating HBASE-3615)
  - implementation is under 
security/src/main/java/org/apache/hadoop/hbase/security/token/
  - Secret keys for token generation and verification are synchronized 
throughout the cluster in zookeeper, under /hbase/tokenauth/keys


To enable secure RPC, add the following configuration to hbase-site.xml:

  <property>
   <name>hadoop.security.authorization</name>
   <value>true</value>
  </property>
  <property>
   <name>hadoop.security.authentication</name>
   <value>kerberos</value>
  </property>
  <property>
   <name>hbase.rpc.engine</name>
   <value>org.apache.hadoop.hbase.ipc.SecureRpcEngine</value>
  </property>
  <property>
   <name>hbase.coprocessor.region.classes</name>
   <value>org.apache.hadoop.hbase.security.token.TokenProvider</value>
  </property>

In addition, the master and regionserver processes must be configured for 
kerberos authentication using the properties:

 * hbase.(master|regionserver).keytab.file
 * hbase.(master|regionserver).kerberos.principal
 * hbase.(master|regionserver).kerberos.https.principal


This addresses bug HBASE-2742.
    https://issues.apache.org/jira/browse/HBASE-2742


Diffs (updated)
-----

  conf/hbase-policy.xml PRE-CREATION 
  pom.xml 2847416 
  security/src/main/java/org/apache/hadoop/hbase/ipc/SecureClient.java 
PRE-CREATION 
  
security/src/main/java/org/apache/hadoop/hbase/ipc/SecureConnectionHeader.java 
PRE-CREATION 
  security/src/main/java/org/apache/hadoop/hbase/ipc/SecureRpcEngine.java 
PRE-CREATION 
  security/src/main/java/org/apache/hadoop/hbase/ipc/SecureServer.java 
PRE-CREATION 
  
security/src/main/java/org/apache/hadoop/hbase/security/AccessDeniedException.java
 PRE-CREATION 
  
security/src/main/java/org/apache/hadoop/hbase/security/HBasePolicyProvider.java
 PRE-CREATION 
  
security/src/main/java/org/apache/hadoop/hbase/security/HBaseSaslRpcClient.java 
PRE-CREATION 
  
security/src/main/java/org/apache/hadoop/hbase/security/HBaseSaslRpcServer.java 
PRE-CREATION 
  
security/src/main/java/org/apache/hadoop/hbase/security/token/AuthenticationKey.java
 PRE-CREATION 
  
security/src/main/java/org/apache/hadoop/hbase/security/token/AuthenticationProtocol.java
 PRE-CREATION 
  
security/src/main/java/org/apache/hadoop/hbase/security/token/AuthenticationTokenIdentifier.java
 PRE-CREATION 
  
security/src/main/java/org/apache/hadoop/hbase/security/token/AuthenticationTokenSecretManager.java
 PRE-CREATION 
  
security/src/main/java/org/apache/hadoop/hbase/security/token/AuthenticationTokenSelector.java
 PRE-CREATION 
  
security/src/main/java/org/apache/hadoop/hbase/security/token/TokenProvider.java
 PRE-CREATION 
  security/src/main/java/org/apache/hadoop/hbase/security/token/TokenUtil.java 
PRE-CREATION 
  
security/src/main/java/org/apache/hadoop/hbase/security/token/ZKSecretWatcher.java
 PRE-CREATION 
  
security/src/test/java/org/apache/hadoop/hbase/security/token/TestTokenAuthentication.java
 PRE-CREATION 
  
security/src/test/java/org/apache/hadoop/hbase/security/token/TestZKSecretWatcher.java
 PRE-CREATION 
  security/src/test/resources/hbase-site.xml PRE-CREATION 
  src/assembly/all.xml 3ad8ab3 
  src/main/java/org/apache/hadoop/hbase/HServerAddress.java f28240c 
  src/main/java/org/apache/hadoop/hbase/client/HConnectionManager.java cba7bd1 
  src/main/java/org/apache/hadoop/hbase/ipc/ConnectionHeader.java 904c107 
  src/main/java/org/apache/hadoop/hbase/ipc/HBaseClient.java 4086829 
  src/main/java/org/apache/hadoop/hbase/ipc/HBaseRPC.java 054b92b 
  src/main/java/org/apache/hadoop/hbase/ipc/HBaseRpcMetrics.java 337da78 
  src/main/java/org/apache/hadoop/hbase/ipc/HBaseServer.java 9117f12 
  src/main/java/org/apache/hadoop/hbase/ipc/HMasterInterface.java 9e0535e 
  src/main/java/org/apache/hadoop/hbase/ipc/HMasterRegionInterface.java 0dc5bea 
  src/main/java/org/apache/hadoop/hbase/ipc/HRegionInterface.java e8b2c9e 
  src/main/java/org/apache/hadoop/hbase/ipc/RequestContext.java PRE-CREATION 
  src/main/java/org/apache/hadoop/hbase/ipc/RpcEngine.java 1b5629a 
  src/main/java/org/apache/hadoop/hbase/ipc/WritableRpcEngine.java c8e030c 
  src/main/java/org/apache/hadoop/hbase/mapred/TableMapReduceUtil.java db07ed1 
  src/main/java/org/apache/hadoop/hbase/mapreduce/TableMapReduceUtil.java 
ad88b76 
  src/main/java/org/apache/hadoop/hbase/master/HMaster.java 19ed5b8 
  src/main/java/org/apache/hadoop/hbase/security/KerberosInfo.java PRE-CREATION 
  src/main/java/org/apache/hadoop/hbase/security/TokenInfo.java PRE-CREATION 
  src/main/java/org/apache/hadoop/hbase/security/User.java 00bd06d 
  src/main/java/org/apache/hadoop/hbase/zookeeper/ZKLeaderManager.java 
PRE-CREATION 
  src/main/java/org/apache/hadoop/hbase/zookeeper/ZKUtil.java 4c5e844 
  src/main/resources/hbase-default.xml 6f98f5d 
  src/test/java/org/apache/hadoop/hbase/MiniHBaseCluster.java c0634f4 
  src/test/java/org/apache/hadoop/hbase/PerformanceEvaluation.java bb9ea45 

Diff: https://reviews.apache.org/r/1991/diff


Testing
-------

A full test suite run showed failures in TestMasterFailover (timeout) and 
TestAvroServer.  I'll look into those.

Cluster testing (1 master + 3 slaves in ec2) with Kerberos authentication and 
map reduce token authentication, using YCSB, RowCounter, PerformanceEvaluation.


Thanks,

Gary


                
> Provide strong authentication with a secure RPC engine
> ------------------------------------------------------
>
>                 Key: HBASE-2742
>                 URL: https://issues.apache.org/jira/browse/HBASE-2742
>             Project: HBase
>          Issue Type: Improvement
>          Components: ipc
>            Reporter: Gary Helmling
>            Priority: Critical
>             Fix For: 0.92.0
>
>
> The HBase RPC code (org.apache.hadoop.hbase.ipc.*) was originally forked off 
> of Hadoop RPC classes, with some performance tweaks added.  Those 
> optimizations have come at a cost in keeping up with Hadoop RPC changes 
> however, both bug fixes and improvements/new features.  
> In particular, this impacts how we implement security features in HBase (see 
> HBASE-1697 and HBASE-2016).  The secure Hadoop implementation (HADOOP-4487) 
> relies heavily on RPC changes to support client authentication via kerberos 
> and securing and mutual authentication of client/server connections via SASL. 
>  Making use of the built-in Hadoop RPC classes will gain us these pieces for 
> free in a secure HBase.
> So, I'm proposing that we drop the HBase forked version of RPC and convert to 
> direct use of Hadoop RPC, while working to contribute important fixes back 
> upstream to Hadoop core.  Based on a review of the HBase RPC changes, the key 
> divergences seem to be:
> HBaseClient:
>  - added use of TCP keepalive (HBASE-1754)
>  - made connection retries and sleep configurable (HBASE-1815)
>  - prevent NPE if socket == null due to creation failure (HBASE-2443)
> HBaseRPC:
>  - mapping of method names <-> codes (removed in HBASE-2219)
> HBaseServer:
>  - use of TCP keep alives (HBASE-1754)
>  - OOME in server does not trigger abort (HBASE-1198)
> HbaseObjectWritable:
>  - allows List<> serialization
>  - includes it's own class <-> code mapping (HBASE-328)
> Proposed process is:
> 1. open issues with patches on Hadoop core for important fixes/adjustments 
> from HBase RPC (HBASE-1198, HBASE-1815, HBASE-1754, HBASE-2443, plus a 
> pluggable ObjectWritable implementation in RPC.Invocation to allow use of 
> HbaseObjectWritable).
> 2. ship a Hadoop version with RPC patches applied -- ideally we should avoid 
> another copy-n-paste code fork, subject to ability to isolate changes from 
> impacting Hadoop internal RPC wire formats
> 3. if all Hadoop core patches are applied we can drop back to a plain vanilla 
> Hadoop version
> I realize there are many different opinions on how to proceed with HBase RPC, 
> so I'm hoping this issue will kick off a discussion on what the best approach 
> might be.  My own motivation is maximizing re-use of the authentication and 
> connection security work that's already gone into Hadoop core.  I'll put 
> together a set of patches around #1 and #2, but obviously we need some 
> consensus around this to move forward.  If I'm missing other differences 
> between HBase and Hadoop RPC, please list as well.  Discuss!

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