Hi!
You are talking about messages like below, right?
INFO [epollEventLoopGroup-2-8] 2018-05-05 16:57:45,537 Message.java:623 -
Unexpected exception during request; channel = [id: 0xa4879fdd,
L:/10.175.20.112:9042 - R:/10.175.20.73:2508]
io.netty.channel.unix.Errors$NativeIoException: sysca
Hi
We are using 4 node cassandra 3.10 cluster.
For some reason autocompaction is not running on one of the table which
uses DTCS. TTL on this table is 3 months. Table has high write load , and
medium read load.
We have 4 disks per node , each disk growed to around 5k-6k sstables going
back to aro
Dear Experts,
I'm observing strange behavior on a cluster 2.1.20 during compactions.
My setup is:
12 nodes m4.2xlarge (8 vCPU, 32G RAM) Ubuntu 16.04, 2T EBS gp2.
Filesystem: XFS, blocksize 4k, device read-ahead - 4k
/sys/block/vxdb/queue/nomerges = 0
SizeTieredCompactionStrategy
After da
Hi
I am.planning for upgrade from 3.1.0 to 3.11.2 , just wanted to confirm if
cleint drivers need to upgraded? Or it will work with 3.1.0 drivers?
If you've got small partitions/small reads you should test lowering your
compression chunk size on the table and disabling read ahead. This sounds
like it might just be a case of read amplification.
On Tue., 8 May 2018, 05:43 Kyrylo Lebediev,
wrote:
> Dear Experts,
>
>
> I'm observing strange be
Hi Abdul,
If you are already at C* 3.1.0 and the driver you are using works, it's
almost certain to also work with 3.11.2 as well as there are no protocol
changes between these versions. I would advise testing your application
out against a 3.11.2 test environment first though, just to be safe ;)
Thanks Andy
On Monday, May 7, 2018, Andy Tolbert wrote:
> Hi Abdul,
>
> If you are already at C* 3.1.0 and the driver you are using works, it's
> almost certain to also work with 3.11.2 as well as there are no protocol
> changes between these versions. I would advise testing your application
>