Re: How to predict time to complete for nodetool repair

2020-03-23 Thread Alexander DEJANOVSKI
Also Reaper will skip the anticompaction phase which you might be going through with nodetool (depending on your version of Cassandra). That'll reduce the overall time spent on repair and will remove some compaction pressure. But as Erick said, unless you have past repairs to rely on and a stable

Re: How to predict time to complete for nodetool repair

2020-03-23 Thread Oleksandr Shulgin
On Mon, Mar 23, 2020 at 5:49 AM Shishir Kumar wrote: > Hi, > > Is it possible to get/predict how much time it will take for *nodetool > -pr *to complete on a node? Currently in one of my env (~800GB data per > node in 6 node cluster), it is running since last 3 days. > Cassandra Reaper used to p

Re: How to predict time to complete for nodetool repair

2020-03-23 Thread Erick Ramirez
There's a lot of moving parts with repairs and how long it takes depends on various factors including (but not limited to): - how busy the nodes are - how fast the CPUs are - how fast the disks are - how much network bandwidth is available - how much data needs to be repaired It's