These are i2.2xlarge instances so the disks currently configured as ephemeral dedicated disks.
On Mon, Oct 17, 2016 at 11:34 AM, Laing, Michael <michael.la...@nytimes.com> wrote: > You could just expand the size of your ebs volume and extend the file > system. No data is lost - assuming you are running Linux. > > > On Monday, October 17, 2016, Seth Edwards <s...@pubnub.com> wrote: > >> We're running 2.0.16. We're migrating to a new data model but we've had >> an unexpected increase in write traffic that has caused us some capacity >> issues when we encounter compactions. Our old data model is on STCS. We'd >> like to add another ebs volume (we're on aws) to our JBOD config and >> hopefully avoid any situation where we run out of disk space during a large >> compaction. It appears that the behavior we are hoping to get is actually >> undesirable and removed in 3.2. It still might be an option for us until we >> can finish the migration. >> >> I'm not familiar with LVM so it may be a bit risky to try at this point. >> >> On Mon, Oct 17, 2016 at 9:42 AM, Yabin Meng <yabinm...@gmail.com> wrote: >> >>> I assume you're talking about Cassandra JBOD (just a bunch of disk) >>> setup because you do mention it as adding it to the list of data >>> directories. If this is the case, you may run into issues, depending on >>> your C* version. Check this out: http://www.datastax.com/d >>> ev/blog/improving-jbod. >>> >>> Or another approach is to use LVM to manage multiple devices into a >>> single mount point. If you do so, from what Cassandra can see is just >>> simply increased disk storage space and there should should have no problem. >>> >>> Hope this helps, >>> >>> Yabin >>> >>> On Mon, Oct 17, 2016 at 11:54 AM, Vladimir Yudovin <vla...@winguzone.com >>> > wrote: >>> >>>> Yes, Cassandra should keep percent of disk usage equal for all disk. >>>> Compaction process and SSTable flushes will use new disk to distribute both >>>> new and existing data. >>>> >>>> Best regards, Vladimir Yudovin, >>>> >>>> >>>> *Winguzone <https://winguzone.com?from=list> - Hosted Cloud Cassandra >>>> on Azure and SoftLayer.Launch your cluster in minutes.* >>>> >>>> >>>> ---- On Mon, 17 Oct 2016 11:43:27 -0400*Seth Edwards <s...@pubnub.com>* >>>> wrote ---- >>>> >>>> We have a few nodes that are running out of disk capacity at the moment >>>> and instead of adding more nodes to the cluster, we would like to add >>>> another disk to the server and add it to the list of data directories. My >>>> question, is, will Cassandra use the new disk for compactions on sstables >>>> that already exist in the primary directory? >>>> >>>> >>>> >>>> Thanks! >>>> >>>> >>>> >>> >>
