Hi all, I've done a bit of search on this issue, and have yet to find anything conclusive. As a test case to demonstrate it, I am using HBase 0.20.6 and stargate.
I have a test HBase cluster with 1 table and about 60M rows in it, and a Stargate instance that talks to it. I have clients that queue up a random list of rowid's to query stargate via http://stargate.example.com:3002/table/rowid like requests. When I have 3 concurrent clients querying stargate, they all do well and get a consistent throughput. When I add the 4th client querying stargate, stargate comes to a screeching halt and everyone has 0 operations for a long while, then a small burst of requests will go through stargate and it will hang for a while, and repeat. If I then just kill one client, the other 3 start having a good consistent throughput again. Bring back the 4th client and it comes to a halt. If I bypass Stargate completely, and have all clients use HTable instances directly, then everyone is good. I can go up to as many clients as I need. This seems like quite a problem and I was wondering if anyone else is seeing something similar. thank you for your time, -jeremy -- ======================================================================== Jeremy Hinegardner jer...@hinegardner.org
