Re: Facebook Cassandra

2013-10-06 Thread Edward Capriolo
As it relates to c* http://www.cs.cornell.edu/Projects/ladis2009/papers/Lakshman-ladis2009.PDF We have built, implemented, and operated a storage sys- tem providing scalability, high performance, and wide appli- cability. We have empirically demonstrated that Cassandra can support a very high

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2013-10-06 Thread Ran Tavory
Hi, I have a small cluster of 1.2.6 and after some config changes I started seeing errors int the logs. Not sure that's related, but the changes I performed were to disable hinted handoff and disable auto snapshot. I'll try to reverte these, see if the picture changes. But anyway, that seems

AssertionError: DecoratedKey(... ) != DecoratedKey (...)

2013-10-06 Thread Ran Tavory
Pardon me, now with the appropriate subject line... Hi, I have a small cluster of 1.2.6 and after some config changes I started seeing errors int the logs. Not sure that's related, but the changes I performed were to disable hinted handoff and disable auto snapshot. I'll try to reverte these,

com.datastax.driver.core.exceptions.WriteTimeoutException: Cassandra timeout during write query

2013-10-06 Thread Ran Tavory
Hi all, when using the java-driver I see this error on the client, for reads (as well as for writes). Many of the ops succeed, however I do see a significant amount of errors. com.datastax.driver.core.exceptions.WriteTimeoutException: Cassandra timeout during write query at consistency ONE (1

Re: AssertionError: DecoratedKey(... ) != DecoratedKey (...)

2013-10-06 Thread Ran Tavory
Update: I've reverted hinted_handoff_enabled back to its default value of true and the errors stopped. Is this just a coincidence, or could be related? On Sun, Oct 6, 2013 at 7:23 PM, Ran Tavory ran...@gmail.com wrote: Pardon me, now with the appropriate subject line... Hi, I have a small

Question about info returned from 'nodetool gossipinfo'

2013-10-06 Thread Sameer Farooqui
Hi, Does anyone know what the information that comes from the nodetool gossipinfo command means? For example, what is the LOAD #'s meaning or the SEVERITY #? My load is 91457.0 and SEVERITY: 22.448. Also, next to STATUS:NORMAL is a negative #: -123311655 what does that # mean?