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Re: Options for expanding Cassandra cluster on AWS - Cassandra - [mail # user]
...The last guidance I heard from DataStax was to use m2.2xlarge's on AWS andput data on the ephemeral drive....have they changed this guidance?BrianOn Tue, Aug 19, 2014 at 9:41 AM, Oleg Dulin ...
   Author: Brian Tarbox, 2014-08-19, 14:09
do all nodes actually send the data to the coordinator when doing a read? - Cassandra - [mail # user]
...We're considering a C* setup with very large columns and I have a questionabout the details of read.I understand that a read request gets handled by the coordinator whichsends read requests ...
   Author: Brian Tarbox, 2014-07-25, 20:13
[expand - 4 more] - Re: nodetool repair saying "starting" and then nothing, and nothing in any of the server logs either - Cassandra - [mail # user]
..."For what purpose are you running repair?"   Because I read that we should!We do delete data from one column family quite regularly...from the otherCFs occasionally.  We almost nev...
   Author: Brian Tarbox, 2014-07-01, 19:06
[expand - 2 more] - Re: can I kill very old data files in my data folder (I know that sounds crazy but....) - Cassandra - [mail # user]
...I don't think I have the space to run a major compaction right now (I'mabove 50% disk space used already) and compaction can take extra space Ithink?On Wed, Jun 18, 2014 at 3:24 PM, Robert C...
   Author: Brian Tarbox, 2014-06-18, 19:39
[expand - 1 more] - Re: running out of diskspace during maintenance tasks - Cassandra - [mail # user]
...We do a repair -pr on each node once a week on a rolling basis.Should we be running cleanup as well?  My understanding that was only usedafter adding/removing nodes?We'd like to avoid a...
   Author: Brian Tarbox, 2014-06-18, 16:10
Specifying startBefore with iterators with compositeKeys - Cassandra - [mail # user]
...I have a composite key consisting of: (integer, bytes) and I have rows like:(1,abc), (1,def), (2,abc), (2,def) and I want to find all rows with theinteger part = 2.I need to create a startBe...
   Author: Brian Tarbox, 2014-04-01, 14:54
[expand - 1 more] - Re: getting dropped messages in log even with no one running - Cassandra - [mail # user]
...The problem was one of my nodes was in some kind of bad Hinted-Handoffloop.  I looked at CASSANDRA-4740 which discusses this but to no solutionthat I could see.When I killed the server ...
   Author: Brian Tarbox, 2014-03-24, 15:05
[expand - 2 more] - Re: this seems like a flaw in Node Selection - Cassandra - [mail # user]
...Yes, I was going to say (sorry for the brain-freeze) that this is behaviorin Pelops not in C* itself.On Thu, Mar 20, 2014 at 4:15 PM, Tyler Hobbs  wrote: ...
   Author: Brian Tarbox, 2014-03-20, 20:18
getting lots of dropped messages/requests/mutations but only on 2 of 6 servers - Cassandra - [mail # user]
...I have a six node cluster (running m2-2xlarge instances in AWS) with RF=3and I'm seeing two of the six nodes reporting lots of dropped messages.The six machines are identical (created from s...
   Author: Brian Tarbox, 2014-03-20, 15:48
sometimes I can't read data I just wrote..race condition or misunderstanding? - Zookeeper - [mail # user]
...We're running a five node cluster in AWS and sometimes if I do a readimmediately after doing a write ZK does not find the data I just wrote.I may just have a flawed model but is this a case ...
   Author: Brian Tarbox, 2014-03-04, 15:22
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