Does the region server hosting hbase:meta have roughly the same number of regions as the other servers ? Did you find anything interesting in the server log (where hbase:meta is hosted) ? Have you tried major compacting the hbase:meta table ? In 1.2, DEFAULT_HBASE_META_VERSIONS is still 10. See HBASE-16832
On Sunday, November 27, 2016 6:53 PM, Timothy Brown <t...@siftscience.com> wrote: Hi Everyone, I apologize for starting an additional thread about this but I wasn't subscribed to the users mailing list when I sent the original and can't figure out how to respond to the original :( Original Message: We are seeing about 80% CPU utilization on the Region Server that solely serves the meta table while other region servers typically have under 50% CPU utilization. Is this expected? Here's some more info about our cluster: HBase version 1.2 Number of regions: 72 Number of tables: 97 Approx. requests per second to meta region server: 3k Approx. requests per second to entire HBase cluster: 90k Additional info: >From Storefile Metrics: Stores Num: 1 Storefiles: 1 Storefile Size: 30m Uncompressed Storefile Size: 30m Index Size: 459k I/O for the region server with only meta on it: 48M bytes in 5.9B bytes out I used the debug dump on the region server's UI but it was too large for paste bin so here's a portion of it: http://pastebin.com/nkYhEceE Thanks for the help, Tim