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https://issues.apache.org/jira/browse/HBASE-6096?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13290941#comment-13290941
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Andrew Purtell edited comment on HBASE-6096 at 6/7/12 11:46 AM:
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bq. In TableAuthManager, we may need to maintain thread-safe data structures.
So let's consider using a
[ReadWriteLock|http://docs.oracle.com/javase/1.5.0/docs/api/java/util/concurrent/locks/ReadWriteLock.html]
to protect for update. It is also possible to obtain a synchronized multimap
with
[Multimaps#synchronizedListMultimap|http://google-collections.googlecode.com/svn/trunk/javadoc/com/google/common/collect/Multimaps.html#synchronizedListMultimap(com.google.common.collect.ListMultimap)]
but by far the most common access is read access, and concurrent read access
is fine.
Edit: See HBASE-6186
was (Author: apurtell):
bq. In TableAuthManager, we may need to maintain thread-safe data
structures.
So let's consider using a
[ReadWriteLock|http://docs.oracle.com/javase/1.5.0/docs/api/java/util/concurrent/locks/ReadWriteLock.html]
to protect for update. It is also possible to obtain a synchronized multimap
with
[Multimaps#synchronizedListMultimap|http://google-collections.googlecode.com/svn/trunk/javadoc/com/google/common/collect/Multimaps.html#synchronizedListMultimap(com.google.common.collect.ListMultimap)]
but by far the most common access is read access, and concurrent read access
is fine.
> AccessController v2
> -------------------
>
> Key: HBASE-6096
> URL: https://issues.apache.org/jira/browse/HBASE-6096
> Project: HBase
> Issue Type: Umbrella
> Components: security
> Affects Versions: 0.96.0, 0.94.1
> Reporter: Andrew Purtell
> Attachments: Security-ACL Matrix.pdf
>
>
> Umbrella issue for iteration on the initial AccessController drop.
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