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https://issues.apache.org/jira/browse/HBASE-9579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13772670#comment-13772670
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Jonathan Hsieh commented on HBASE-9579:
---------------------------------------
{quote}
THis should be private?
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public abstract class FSUtils {
{quote}
Putting the question slightly different slant -- should all application writers
have the ability to traverse and potentially modify HBase's hdfs dirctory
structure? I think only hbase services should be touching that stuff (or via a
helper interface like hbck). Marking private doesn't mean they don't have
access to these methods -- it just means that they shouldn't unless they are
willing to deal with the api changing. (and gives us the ability to change
these).
{quote}
Hmmm.. I suppose this general utility... but no harm making it internal
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@InterfaceStability.Stable
public class HashedBytes {
{quote}
Honestly, it seems like a wrapper that provides little value -- it is only used
in 5 lines of HRegion and if anything should be folded in as a private static
inner class in that class. Let's keep it private.
{code}
jon@swoop:~/proj/hbase-trunk$ grep -R HashedBytes . | grep \\.java
./hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java:import
org.apache.hadoop.hbase.util.HashedBytes;
./hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java:
private final ConcurrentHashMap<HashedBytes, RowLockContext> lockedRows =
./hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java:
new ConcurrentHashMap<HashedBytes, RowLockContext>();
./hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java:
HashedBytes rowKey = new HashedBytes(row);
./hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java:
private final HashedBytes row;
./hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java:
RowLockContext(HashedBytes row) {
./hbase-server/src/main/java/org/apache/hadoop/hbase/util/HashedBytes.java:public
class HashedBytes {
./hbase-server/src/main/java/org/apache/hadoop/hbase/util/HashedBytes.java:
public HashedBytes(byte[] bytes) {
./hbase-server/src/main/java/org/apache/hadoop/hbase/util/HashedBytes.java:
HashedBytes other = (HashedBytes) obj;
{code}
> Sanity check visiblity and audience for server-side modules.
> ------------------------------------------------------------
>
> Key: HBASE-9579
> URL: https://issues.apache.org/jira/browse/HBASE-9579
> Project: HBase
> Issue Type: Bug
> Components: documentation
> Affects Versions: 0.95.2
> Reporter: Jonathan Hsieh
> Assignee: Jonathan Hsieh
> Attachments: hbase-9579.patch, hbase-9579.v2.patch
>
>
> Similar to HBASE-9495 we should audit the hbase-hadoop*-compat,
> hbase-prefix-tree, hbase-protocol and hbase server-modules.
> I'll go through each module first making most things private, and then do a
> second pass using some sort of LimitedPrivate marking for apis that we'd
> expect coprocs or advanced tests to use.
> This is less urgent that the work for the client facing apis.
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