Nodetool repair, exit code/status?

2012-10-08 Thread David Daeschler
Hello. In the process of trying to streamline and provide better reporting for various data storage systems, I've realized that although we're verifying that nodetool repair runs, we're not verifying that it is successful. I found a bug relating to the exit code for nodetool repair, where, in

Re: Hinted Handoff runs every ten minutes

2012-10-18 Thread David Daeschler
Is anyone else seeing this behavior? What can I do to provide more information? Steve -- David Daeschler

nodetool repair -pr enough in this scenario?

2012-06-04 Thread David Daeschler
Hello, Currently I have a 4 node cassandra cluster on CentOS64. I have been running nodetool repair (no -pr option) on a weekly schedule like: Host1: Tue, Host2: Wed, Host3: Thu, Host4: Fri In this scenario, if I were to add the -pr option, would this still be sufficient to prevent forgotten

Re: nodetool repair -pr enough in this scenario?

2012-06-05 Thread David Daeschler
Thank you for all the replies. It has been enlightening to read. I think I now have a better idea of repair, ranges, replicas and how the data is distributed. It also seems that using -pr would be the best way to go in my scenario with 1.x+ Thank you for all the feedback. Glad to see such an

Re: High CPU usage as of 8pm eastern time

2012-06-30 Thread David Daeschler
%d%H%M%C%y.%S`; date; CPU drop was instantaneous - there was no need to restart the server, ntpd, or any of the affected JVMs. -- David Daeschler

Re: High CPU usage as of 8pm eastern time

2012-07-01 Thread David Daeschler
More information for others that were affected. Our installation of java: [root@inv4 conf]# java -version java version 1.6.0_30 Java(TM) SE Runtime Environment (build 1.6.0_30-b12) Java HotSpot(TM) 64-Bit Server VM (build 20.5-b03, mixed mode) [root@inv4 conf]# uname -a Linux inv4

Re: cassandra halt after started minutes later

2012-07-01 Thread David Daeschler
If you are seeing high CPU usage and a stall after restarting cassandra still, and you are on Linux, try: date; date `date +%m%d%H%M%C%y.%S`; date; In a terminal and see if everything starts working again. I hope this helps. -- David Daeschler On Sun, Jul 1, 2012 at 11:33 AM, Yan Chunlu

Re: Oftopic: ksoftirqd after ddos take more cpu? as result cassandra latensy very high

2012-07-01 Thread David Daeschler
this helps. Please spread the word if you see others having issues with unresponsive kernels/high CPU. -- David Daeschler On Sun, Jul 1, 2012 at 1:05 PM, ruslan usifov ruslan.usi...@gmail.com wrote: Hello We was under ddos attack, and as result we got high ksoftirqd activity - as result cassandra

Re: What % of cassandra developers are employed by Datastax?

2014-05-23 Thread David Daeschler
to and promotion of Apache Cassandra. =Rob -- David Daeschler

Strange trouble with JNA on CentOS6

2014-05-26 Thread David Daeschler
for any help you may be able to offer. -- David Daeschler

Re: Strange trouble with JNA on CentOS6

2014-05-26 Thread David Daeschler
Figured this one out.. In the new setup /tmp was mounted as noexec. So it looks like JNA was putting the native library here and then it was unable to execute it. I hope this can help someone else. On Mon, May 26, 2014 at 11:33 PM, David Daeschler david.daesch...@gmail.com wrote: Good

Re: I have a deaf node?

2014-06-01 Thread David Daeschler
!! gpg --keyserver pool.sks-keyservers.net --recv-keys F186197B -- David Daeschler