Rsync is not for our case. Is sstableloader for 1.2.x faster?
From: Edward Capriolo [mailto:edlinuxg...@gmail.com] Sent: Wednesday, April 10, 2013 15:52 To: user@cassandra.apache.org Subject: Re: sstableloader throughput Stables loader was slow in 1:0:x I had better luck with rsync. It was not fixed in the 1.0.x series. On Wednesday, April 10, 2013, Viktor Jevdokimov <viktor.jevdoki...@adform.com> wrote: > Found https://issues.apache.org/jira/browse/CASSANDRA-3668 > > Weird. > > > > Hi, > > > > We're using Casandra 1.0.12 sstableloader to import data from dedicated > machine located in DC1 into the cluster of 32 nodes (RF=4), 16 nodes in DC1 > and 16 nodes in DC2. > > > > To disable throttle for sstableloader we set in casasndra.yaml: > > stream_throughput_outbound_megabits_per_sec: 0 > > > > Outgoing network throughput is about 1Gbit, file copy from dedicated > sstableloader machine throughput is >90MB/s into DC1 node and >50MB/s into > DC2 node. > > > > But with sstableloader outgoing network traffic is only 9MB/s, importing 1 > sstable of 480MB into cluster (~60MB/node) takes 8-9 minutes. Even with > 50MB/s import should take less than a minute. > > > > Why sstableloader throughput is so low/slow? > Best regards / Pagarbiai Viktor Jevdokimov Senior Developer Email: viktor.jevdoki...@adform.com Phone: +370 5 212 3063 Fax: +370 5 261 0453 J. Jasinskio 16C, LT-01112 Vilnius, Lithuania Disclaimer: The information contained in this message and attachments is intended solely for the attention and use of the named addressee and may be confidential. If you are not the intended recipient, you are reminded that the information remains the property of the sender. You must not use, disclose, distribute, copy, print or rely on this e-mail. If you have received this message in error, please contact the sender immediately and irrevocably delete this message and any copies.
