Create a config that forces to cache blocks on compaction

The configuration 'hbase.rs.cacheblocksonwrite' was used to enable caching the blocks on write. But purposefully we were not caching the blocks when we do compaction (since it may be very aggressive) as the caching happens as and when the writer completes a block. In cloud environments since they have bigger sized caches - though they try to enable 'hbase.rs.prefetchblocksonopen' (non - aggressive way of caching the blocks proactively on reader creation) it does not help them because it takes time to cache the compacted blocks. This feature creates a new configuration 'hbase.rs.cachecompactedblocksonwrite' which when set to 'true' will enable the blocks created out of compaction. Remember that since it is aggressive caching the user should be having enough cache space - if not it may lead to other active blocks getting evicted. From the shell this can be enabled by using the option per Column Family also by using the below format {code} create 't1', 'f1', {NUMREGIONS => 15, SPLITALGO => 'HexStringSplit', CONFIGURATION => {'hbase.rs.cachecompactedblocksonwrite' => 'true'}} {code}