I have three nodes running cassandra 0.7.4 about two years, as showed below: 10.x.x.x Up Normal 138.07 GB 33.33% 0
10.x.x.x Up Normal 143.97 GB 33.33% 56713727820156410577229101238628035242 10.x.x.x Up Normal 137.33 GB 33.33% 113427455640312821154458202477256070484 the commitlog and data directory are separated on different disk(Western Digital WD RE3 WD1002FBYS 1TB). as the data size grow the reads and write time are keep increasing, slow down the website frequently. Based on the experience that every time using nodetool to maintain the nodes, could cost a very long time, consume a lot system resource(always ended nowhere), and cause my web service very unstable, I really have no idea what to do, upgrade seems not solving this either, I have a newer cluster with have the same configuration but version is 1.0.2, also got increasing latency, and the new system also suffering unstable problem... just wondering does that means I must add more nodes(which is also a painful and slow path)? [image: Inline image 1]
