Thanks Mikael for the review. I'll put it in the docs queue.
On 11/22/11 5:23 PM, "Mikael Sitruk" <[email protected]> wrote: >Hi > >I have enabled metrics on Hbase cluster (0.90.1), and mapped the metrics >to >3 categories (missing, Present but not documented/Incomplete >documentation,Ok) according to their status in the book ( >http://hbase.apache.org/book.html#hbase_metrics). Is it possible to udpate >the book accordingly? >It seems also that rpc metrics are not documented at all. > >And now some questions on the metrics: >I can see some metrics present a num_ops and avg_time suffix (like rpc) >but >it seems that for certain metrics is it totally unclear (to me at least) >or >their name is missleading - for example what >means compactionTime_avg_time/compactionTime_num_ops? or >flushSize_avg_time >and flushSize_num_ops? I mean I would have understood compaction_avg_time >and flushSize or flush_avg_time. > >Also how can we know the unit of measure of metrics (beside memstoreSizeMB >and storefileIndexSizeMB that explicitly tell the UOM)? > >Missing: > >blockCacheEvictedCount >blockCacheHitCachingRatio >blockCacheHitCount >blockCacheMissCount >compactionSize_avg_time >compactionSize_num_ops >compactionTime_avg_time >compactionTime_num_ops >flushQueueSize >flushSize_avg_time >flushSize_num_ops >flushTime_avg_time >flushTime_num_ops > > > >Present but not documented/Incomplete documentation: > >blockCacheHitRatio >fsReadLatency_num_ops >fsSyncLatency_num_ops >fsWriteLatency_num_ops > > >Ok: > >blockCacheCount >blockCacheFree >blockCacheSize >compactionQueueSize >fsReadLatency_avg_time >fsSyncLatency_avg_time >fsWriteLatency_avg_time >regions >requests >memstoreSizeMB >storefiles >stores >storefileIndexSizeMB > > > >Regards, >Mikael.S
