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https://issues.apache.org/jira/browse/HBASE-12393?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ChiaPing Tsai updated HBASE-12393:
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Attachment: HBASE-12393.patch
To avoid invoking disabled blockcache's method, we use an additional
statement(else if) to evaluate the value of blockcache.
If blockcache is null, it will display "Block Cache is disabled" on the web
page of blockcache stats.
> The regionserver web will throw exception if we disable block cache
> -------------------------------------------------------------------
>
> Key: HBASE-12393
> URL: https://issues.apache.org/jira/browse/HBASE-12393
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 0.98.7
> Environment: ubuntu 12.04 64bits, hadoop-2.2.0, hbase-0.98.7-hadoop2
> Reporter: ChiaPing Tsai
> Priority: Minor
> Attachments: HBASE-12393.patch
>
>
> 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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