[hbase] Don't make Long objects calculating hbase type hash codes
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Key: HADOOP-2553
URL: https://issues.apache.org/jira/browse/HADOOP-2553
Project: Hadoop
Issue Type: Improvement
Components: contrib/hbase
Reporter: stack
Priority: Minor
Fix For: 0.16.0
Attachments: white.patch
>From a code perusal by Tom White:
{code}
...
1. In Memcache.internalGet the following line doesn't seem to do anything.
curKey.setVersion(itKey.getTimestamp() - 1);
So why have curKey at all? Am I missing something?
2. Hashcode for HStoreKey (and others) uses the form Long.valueOf(...)
for long fields. This creates an object each time - not sure if it's a
problem (probably isn't) but as you've been doing some profiling I
thought I'd mention it.
...
{code}
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