i guess 7000 is only for gossip protocol. Cassandra still uses 9160 for RPC even among nodes.... Also, I see Connections over port 9160 among various cassandra Nodes in my cluster. Please correct me if i am wrong..
PS: mentioned Here http://wiki.apache.org/cassandra/CloudConfig On Tue, Oct 2, 2012 at 4:56 PM, Viktor Jevdokimov <viktor.jevdoki...@adform.com> wrote: > 9160 is a client port. Nodes are using messaging service on storage_port > (7000) for intra-node communication. > > > 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.> -----Original Message----- >> From: Niteesh kumar [mailto:nitees...@directi.com] >> Sent: Tuesday, October 02, 2012 12:32 >> To: user@cassandra.apache.org >> Subject: Persistent connection among nodes to communicate and redirect >> request >> >> while looking at netstat table i observed that my cluster nodes not using >> persistent connection to talk among themselves on port 9160 to redirect >> request. I also observed that local write latency is around >> 30-40 microsecond, while its takes around .5 miliseconds if the chosen node >> is not the node responsible for the key for 50K QPS. I think this attributes >> to >> connection making time among servers as my servers are on same rack. >> >> how can i configure my servers to use persistent connection on port 9160 >> thus exclude connection making time for each request that is redirected...
