Re: Anticompaction causing significant increase in disk usage

2018-09-12 Thread Martin Mačura
Hi Alain, thank you for your response. I'm using incremental repair. I'm afraid subrange repair is not a viable alternative, because it's very slow - takes over a week to complete. I've found at least a partial solution - specifying '-local' or '-dc' parameter will also disable anticompaction, bu

Re: Anticompaction causing significant increase in disk usage

2018-09-12 Thread Alain RODRIGUEZ
Hello Martin, How do you perform the repairs? Are you using incremental repairs or full repairs but without subranges? Alex described issues related to these repairs here: http://thelastpickle.com/blog/2017/12/14/should-you-use-incremental-repair.html . *tl;dr: * The only way to perform repair

Anticompaction causing significant increase in disk usage

2018-09-12 Thread Martin Mačura
Hi, we're on cassandra 3.11.2 . During an anticompaction after repair, TotalDiskSpaceUsed value of one table gradually went from 700GB to 1180GB, and then suddenly jumped back to 700GB. This happened on all nodes involved in the repair. There was no change in PercentRepaired during or after this p