table that has secondary index used up a lot of space - how to reduce it?

2018-10-17 Thread Kevin Mo
Hi, We are using a Cassandra to develop our application and we use a secondary index in one of our table for faster performance. As of now in our production, we saw a growing disk space on the table that has secondary index on it. It becomes a problem on us since we have a lot of data need to s

Re: Deprecating/removing PropertyFileSnitch?

2018-10-17 Thread sankalp kohli
This is not the case during host replacement correct? On Tue, Oct 16, 2018 at 10:04 AM Jeremiah D Jordan < jeremiah.jor...@gmail.com> wrote: > As long as we are correctly storing such things in the system tables and > reading them out of the system tables when we do not have the information > fro

Re: CASSANDRA-13241 lower default chunk_length_in_kb

2018-10-17 Thread Ariel Weisberg
Hi, It's really not appreciably slower compared to the decompression we are going to do which is going to take several microseconds. Decompression is also going to be faster because we are going to do less unnecessary decompression and the decompression itself may be faster since it may fit in

Re: CASSANDRA-13241 lower default chunk_length_in_kb

2018-10-17 Thread kurt greaves
I think if we're going to drop it to 16k, we should invest in the compact sequencing as well. Just lowering it to 16k will have potentially a painful impact on anyone running low memory nodes, but if we can do it without the memory impact I don't think there's any reason to wait another major versi

Re: CASSANDRA-13241 lower default chunk_length_in_kb

2018-10-17 Thread Alain RODRIGUEZ
+1 I would guess a lot of C* clusters/tables have this option set to the default value, and not many of them are having the need for reading so big chunks of data. I believe this will greatly limit disk overreads for a fair amount (a big majority?) of new users. It seems fair enough to change this

Re: Proposing an Apache Cassandra Management process

2018-10-17 Thread Sankalp Kohli
Hi Mick, Can you share the link to cwiki if you have started it ? Thanks Sankalp > On Oct 4, 2018, at 5:20 PM, Mick Semb Wever wrote: > > Dinesh / Sankalp, > > My suggestion was to document the landscape in hope and an attempt to better > understand the requirements possible to