Re: Compaction through put and compaction tasks

2017-09-26 Thread kurt greaves
Number of active tasks is controlled by concurrent_compactors yaml setting. Recommendation is set to number of cpu cores you have. Number of pending tasks is an estimate generated by Cassandra to achieve a completely compacted state (i.e, there are no more possible compactions). How this is

Compaction through put and compaction tasks

2017-09-26 Thread Anshu Vajpayee
Hello - Ihave very generic question regarding compaction. How does cassandra internally generate the number of comapction tasks? How does it get affected with compaction throughput ? If we increase the number of compaction throughput, will the per second compaction task increase for same