Added Hari to the wiki. Roshan, I could not look you up on the wiki users, can you please tell me your username? If you don't have one yet, please register and let me know.
Regards, Arvind Prabhakar On Wed, Apr 8, 2015 at 3:26 PM, Roshan Naik <ros...@hortonworks.com> wrote: > Arvind, > Please do let me know once you have granted me permission to the wiki. > -roshan > > From: Hari Shreedharan <hshreedha...@cloudera.com<mailto: > hshreedha...@cloudera.com>> > Date: Thursday, April 2, 2015 3:06 PM > To: Roshan Naik <ros...@hortonworks.com<mailto:ros...@hortonworks.com>> > Cc: "dev@flume.apache.org<mailto:dev@flume.apache.org>" < > dev@flume.apache.org<mailto:dev@flume.apache.org>> > Subject: Re: Flume performance measurements > > Arvind - please could you grant Roshan access to the wiki. > > Thanks, > Hari > > > > On Thu, Apr 2, 2015 at 3:04 PM, Roshan Naik <ros...@hortonworks.com > <mailto:ros...@hortonworks.com>> wrote: > > Could u grant me write access to wiki ? > username: roshannaik > > > > On 4/2/15 2:53 PM, "Hari Shreedharan" <hshreedha...@cloudera.com<mailto: > hshreedha...@cloudera.com>> wrote: > > >Roshan, > > > > > > > > > >Could you update the performance measurements page on our wiki with this > >info? That would be more useful to reference. > > > > > > > > > >Thanks, Hari > > > >On Thu, Apr 2, 2015 at 2:34 PM, Roshan Naik <ros...@hortonworks.com > <mailto:ros...@hortonworks.com>> > >wrote: > > > >> Sample Flume v1.4 Measurements for reference: > >> Here are some sample measurements taken with a single agent and 500 > >>byte events. > >> Cluster Config: 20-node Hadoop cluster (1 name node and 19 data nodes). > >> Machine Config: 24 cores - Xeon E5-2640 v2 @ 2.00GHz, 164 GB RAM. > >> 1. File channel with HDFS Sink (Sequence File): > >> Source: 4 x Exec Source, 100k batchSize > >> HDFS Sink Batch size: 500,000 > >> Channel: File > >> Number of data dirs: 8 > >> Events/Sec > >> Sink Count > >> 1 data dirs > >> 2 data dirs > >> 4 data dirs > >> 6 data dirs > >> 8 data dirs > >> 10 data dirs > >> 1 > >> 14.3 k > >> 2 > >> 21.9 k > >> 4 > >> 35.8 k > >> 8 > >> 24.8 k > >> 43.8 k > >> 72.5 k > >> 77 k > >> 78.6 k > >> 76.6 k > >> 10 > >> 58 k > >> 12 > >> 49.3 k > >> 49 k > >> Was looking for sweet spot in perf. So did not take measurements for > >>all data points on grid. Only too for the ones that made sense. For > >>example: when perf dropped by adding more sinks, did not take more > >>measurements for those rows. > >> 2. HDFS Sink: > >> Channel: Memory > >> # of HDFS > >> Sinks > >> Snappy > >> BatchSz:1.2mill > >> Snappy > >> BatchSz:1.4mill > >> Sequence File > >> BatchSz:1.2mill > >> 1 > >> 34.3 k > >> 33 k > >> 33 k > >> 2 > >> 71 k > >> 75 k > >> 69 k > >> 4 > >> 141 k > >> 145 k > >> 141 k > >> 8 > >> 271 k > >> 273 k > >> 251 k > >> 12 > >> 382 k > >> 380 k > >> 370 k > >> 16 > >> 478 k > >> 538 k > >> 486 k > >> Some simple observations : > >> * increasing number of dataDirs helps FC perf even on single disk > >>systems > >> * Increasing number of sinks helps > >> * Max throughput observed was about 538k events/sec for HDFS sink > >>which is approx 240MB/s > > >
