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[expand - 1 more] - Re: RAM vs SSD for real world performance? - Cassandra - [mail # user]
...I imagine I’d generally be happy if we were CPU bound :-) … as long as thenumber of transactions per second is generally reasonable.On Tue, Nov 25, 2014 at 7:35 PM, Robert Coli  wrote:F...
   Author: Kevin Burton, 2014-11-26, 04:11
What causes NoHostAvailableException, WriteTimeoutException, and UnavailableException? - Cassandra - [mail # user]
...I’m trying to track down some exceptions in our production cluster.  Ibumped up our write load and now I’m getting a non-trivial number of theseexceptions.  Somewhere on the order ...
   Author: Kevin Burton, 2014-11-24, 20:58
[expand - 3 more] - Re: IF NOT EXISTS on UPDATE statements? - Cassandra - [mail # user]
...INSERT and UPDATE are not totally orthogonalin CQL and you should use INSERT for actual insertion and UPDATE forupdates (granted, the database will not rejectour query if you break this rule...
   Author: Kevin Burton, 2014-11-18, 17:26
conditional batches across two tables? - Cassandra - [mail # user]
...I’m trying to have some code acquire a lock by first at performing a tablemutation, and then if it wins, performing a second table insert.I don’t think this is possible with batches though.I...
   Author: Kevin Burton, 2014-11-17, 00:51
[expand - 1 more] - Re: Reading the write time of each value in a set? - Cassandra - [mail # user]
...Thanks. I’ll probably file a bug for this, assuming one doesn’t alreadyexist.On Sun, Nov 16, 2014 at 6:20 AM, Eric Stevens  wrote:Founder/CEO Spinn3r.comLocation: *San Francisco, CA*blo...
   Author: Kevin Burton, 2014-11-16, 19:29
Two writers appending to a set to see which one wins? - Cassandra - [mail # user]
...I have two tasks trying to each insert into a table.  The only problem isthat I only want one to win, and then never perform that operation again.So my idea was to use the set append su...
   Author: Kevin Burton, 2014-11-16, 07:03
writetime of individual set members, and what happens when you add a set member a second time. - Cassandra - [mail # user]
...So I think there are some operations in CQL WRT sets/maps that aren’tsupported yet or at least not very well documented.For example, you can set the TTL on individual set members, but how do...
   Author: Kevin Burton, 2014-11-16, 06:23
OR mapping for set appends… - Cassandra - [mail # user]
...I’m trying to figure out the best way to handle things like set appends(and other CQL extensions) in traditional OR mapping.Our OR mapper does basic setFoo() .. then save() to write the reco...
   Author: Kevin Burton, 2014-11-14, 04:57
[expand - 1 more] - Re: Can spark read and write to cassandra without HDFS? - Spark - [mail # user]
...Yes.  That’s what I was planning on using actually.I was just curious whether intermediate data had to be kept in HDFS butthis answers my question.  thanks.On Wed, Nov 12, 2014 at ...
   Author: Kevin Burton, 2014-11-13, 06:17
embedded spark for unit testing.. - Spark - [mail # user]
...What’s the best way to embed spark to run local mode in unit tests?Some or our jobs are mildly complex and I want to keep verifying that theywork including during schema changes / migration....
   Author: Kevin Burton, 2014-11-10, 05:13
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB