nondeterministic NoHostAvailableException occurs while dropping a table

2014-09-05 Thread Clint Kelly
Hi all, TL;DR - I think my unit tests are sometimes failing because of read timeouts to an EmbeddedCassandraService when dropping a table triggers a compaction on a highly-loaded build slave. Does this sound reasonable? What options should I change in my Cluster.Builder (or elsewhere) to prevent

Re: Questions about cleaning up/purging Hinted Handoffs

2014-09-05 Thread Rahul Neelakantan
Yup... Upgrades are in the works.. Thanks for the response. The reason I asked about he hints is because I see hints being replayed but the large compacted hints stable still sticks around, perhaps it is a bug with that version . Rahul Neelakantan > On Sep 5, 2014, at 1:03 PM, Robert Coli wr

Re: Question about EC2 and SSDs

2014-09-05 Thread Jared Biel
EBS performance was a major concern a few years ago, but it's gotten better in the last few years with things like Provisioned IOPS and SSDs. However, it's still not recommended (reasons outlined here

Re: Questions about cleaning up/purging Hinted Handoffs

2014-09-05 Thread Robert Coli
On Fri, Sep 5, 2014 at 6:12 AM, Rahul Neelakantan wrote: > The questions are for Cassandra 1.0.8 but may apply to later versions too. > Upgrade your very old version of Cassandra ASAP. I barely remember the implementation of HH in your old version. > 1) When the coordinator notices that a node

Error on Memory Meter

2014-09-05 Thread Sávio S . Teles de Oliveira
I'm using Cassandra 2.0.9 embedded and got this error: java.lang.NoClassDefFoundError: Ljavax/transaction/TransactionManager; at java.lang.Class.getDeclaredFields0(Native Method) at java.lang.Class.privateGetDeclaredFields(Class.java:2436) at java.lang.Class.getDeclaredFields(Class.java:1806) at

Re: Question about EC2 and SSDs

2014-09-05 Thread William Oberman
Theory aside, I switched from "RAID of ephemerals" for data, and root volume for write log to single EBS-based SSD without any noticeable impact on performance. will On Thu, Sep 4, 2014 at 9:35 PM, Steve Robenalt wrote: > Yes, I am aware there are no heads on an SSD. I also have seen plenty of

Questions about cleaning up/purging Hinted Handoffs

2014-09-05 Thread Rahul Neelakantan
The questions are for Cassandra 1.0.8 but may apply to later versions too. 1) When the coordinator notices that a node it is collecting hints for is down for more than the max hint window, it stops collecting hints for that node - Does it automatically purge the hints it collected so far, or d