[jira] [Created] (HBASE-12393) The regionserver web UI will throw exception when we set block cache to zero

[ChiaPing Tsai (JIRA)]

ChiaPing Tsai created HBASE-12393:
-------------------------------------

             Summary: The regionserver web UI will throw exception when we set 
block cache to zero
                 Key: HBASE-12393
                 URL: https://issues.apache.org/jira/browse/HBASE-12393
             Project: HBase
          Issue Type: Bug
          Components: BlockCache
         Environment: ubuntu 12.04 64bits, hadoop-2.2.0, hbase-0.98.7-hadoop2
            Reporter: ChiaPing Tsai
            Priority: Minor


The CacheConfig.getBlockCache() will return the null point when we set 
hfile.block.cache.size to zero.
It caused the BlockCacheTmplImpl.java:123 to throw null exception.

{code}
org.jamon.escaping.Escaping.HTML.write(org.jamon.emit.StandardEmitter.valueOf(StringUtils.humanReadableInt(cacheConfig.getBlockCache().size())),
 jamonWriter);
{code}





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