Schema Disagreement vs Nodetool resetlocalschema

2016-06-19 Thread Michael Fong
Hi, We have recently encountered several schema disagreement issue while upgrading Cassandra. In one of the cases, the 2-node cluster idled for over 30 minutes and their schema remain unsynced. Due to other logic flows, Cassandra cannot be restarted, and hence we need to come up an alternative

Re: New Cassandra PMC members and committers

2016-06-19 Thread Giampaolo Trapasso
Congrats! :) giampaolo 2016-06-16 22:11 GMT+02:00 Jonathan Ellis : > The Apache Cassandra PMC would like to welcome its newest members. In > alphabetical order, these are Aaron Morton, Dave Brosius, and Tyler Hobbs. > > We would also like to welcome new committer Jeff Jirsa, author of TWCS. > >

Optimizing IOPS during sequential I/O (compactions)

2016-06-19 Thread Mike Heffner
Hi, I'm curious to know if anyone has attempted to improve read IOPS performance during sequential I/O operations (largely compactions) while still maintaining read performance for small row, random-access client reads? Our use case is very high write load to read load ratio with rows that are sm