Re: Stargate perf and troubleshooting tips

2014-08-12 Thread SiMaYunRui
er - here, the RegionServer(s) - have >> > configurable intervals for keeping idle connections around. Either the >> > client or server will eventually drop the connection. Who does it >>depends >> > on the configured timeouts. You can increase the defaults but

Re: Stargate perf and troubleshooting tips

2014-08-12 Thread Virag Kothari
nection. Who does it >>depends >> > on the configured timeouts. You can increase the defaults but it >>would be >> > better not to hold scanner resources open. > >> From: apurt...@apache.org >> Date: Mon, 11 Aug 2014 10:28:18 -0700 >> Subject: Re: Sta

RE: Stargate perf and troubleshooting tips

2014-08-11 Thread SiMaYunRui
...@apache.org > Date: Mon, 11 Aug 2014 10:28:18 -0700 > Subject: Re: Stargate perf and troubleshooting tips > To: user@hbase.apache.org > > No, the stateless scanner does not support filters. Is this a requirement > for your use case? > > > On Mon, Aug 11, 2014 at 7

Re: Stargate perf and troubleshooting tips

2014-08-11 Thread Andrew Purtell
No, the stateless scanner does not support filters. Is this a requirement for your use case? On Mon, Aug 11, 2014 at 7:02 AM, SiMaYunRui wrote: > Thanks Andrew. Does the stateless scan supports filter? I read the doc you > referenced, but seems that only the follow parameters are supported, fil

Re: Stargate perf and troubleshooting tips

2014-08-11 Thread SiMaYunRui
Thanks Andrew. Does the stateless scan supports filter? I read the doc you referenced, but seems that only the follow parameters are supported, filter is not part of the list. startrow - The start row for the scan. endrow - The end row for the scan. columns - The columns to scan. starttime, en

Re: Stargate perf and troubleshooting tips

2014-08-07 Thread Andrew Purtell
On Wed, Aug 6, 2014 at 11:20 PM, SiMaYunRui wrote: > Further investigation showsthat if I repeatedly fetch data very quick, the > latter scanner creations are very fast (< 100ms), but if there is >1minute > interval between two data fetching, the latter is slow. > ​ > I am certain that it’s not c

Stargate perf and troubleshooting tips

2014-08-06 Thread SiMaYunRui
Hi all, I am encountering a performance when building an application to scan data thru Stargate (HBase Restful service). Stargate asks two steps to fetch data from hbase table, the first step is to put a scanner resource and then to get next thru another http request. My observation is that it