Hi Samisa, It was a mistake. I realized that just after sending the email. Will not do again.
Thanks. On Fri, May 10, 2013 at 12:47 PM, Samisa Abeysinghe <[email protected]> wrote: > Guys, no point in sending RedMine links to dev list, as it is not public > > > On Fri, May 10, 2013 at 12:24 PM, Bhathiya Jayasekara > <[email protected]>wrote: > >> Hi Paul, >> >> I had a little research on availability of latency statistics. There are >> 2 types of latency values which can be retrieved from Cassandra jmx mbeans. >> >> 1) Read/write latency for keyspaces >> 2) Read/write latency for column families >> >> The first one is calculated by (total time spent for requests *since >> server started*)/(number of requests *since server started*), >> >> and the second one is calculated by (total time spent for requests *since >> last call to jmx mbean*)/(number of requests *since last call to jmx >> mbean*). >> >> So, to have an average value for latency, it seems the first one is more >> suitable. So I'm going to use those values as latency. Since I have >> read/write counts as well, average latency for whole system can be >> calculated. >> >> Thanks. >> >> >> >> On Thu, May 9, 2013 at 3:52 PM, Paul Fremantle <[email protected]> wrote: >> >>> Very nice. Is there any way we can get average ms per read and write? I >>> know that is important to many users. >>> >>> Paul >>> >>> >>> On 9 May 2013 11:07, Bhathiya Jayasekara <[email protected]> wrote: >>> >>>> Hi Prabath, >>>> >>>> As you suggested, I wrote a simple table gadget to show other relevant >>>> statistics too. Comments are welcome. >>>> >>>> I'm attaching screenshots of the gadgets herewith. >>>> >>>> Thanks. >>>> >>>> >>>> On Thu, May 9, 2013 at 11:22 AM, Prabath Abeysekera >>>> <[email protected]>wrote: >>>> >>>>> Hi Bhathiya, >>>>> >>>>> On Thu, May 9, 2013 at 10:10 AM, Bhathiya Jayasekara < >>>>> [email protected]> wrote: >>>>> >>>>>> Hi devs, >>>>>> >>>>>> I started working on [1] few weeks back. The initial milestone is to >>>>>> implement Cassandra data publishing, analyzing and monitoring part. The >>>>>> billing task will be done later. Currently I have completed Cassandra >>>>>> disk >>>>>> space usage and node status monitoring implementation. So with this now, >>>>>> Cassandra disk space usages can be monitored in different time periods >>>>>> such >>>>>> as "in last hour", "in last day", "in last week" and in "last month". >>>>>> >>>>>> In addition to disk space usage, other statistics such as >>>>>> sstablecount, read and write counts etc. are also published and analyzed >>>>>> now, and can be added to monitoring dashboard if required. (Need to write >>>>>> gadgets accordingly) >>>>>> >>>>> >>>>> Good work. Please attach a few screenshots of the available dashboard >>>>> artifacts you've come up with too. Also, I believe, if possible, writing a >>>>> few other gadgets to display the information on read/write counts, >>>>> latency, sstablecounts, etc too would be helpful to make it a more >>>>> complete >>>>> toolbox. (Referring your mail, I hope it's going to be straightforward as >>>>> the necessary information is already available.) >>>>> >>>>> >>>>>> >>>>>> Currently data publishing and viewing is available for super tenant >>>>>> only, and I'm planning to extend it to tenant level. >>>>>> >>>>>> [1] https://redmine.wso2.com/issues/1163 >>>>>> >>>>>> >>>>>> Thanks. >>>>>> >>>>>> -- >>>>>> *Bhathiya Jayasekara* >>>>>> *Software Engineer,* >>>>>> *WSO2 inc., http://wso2.com* >>>>>> * >>>>>> * >>>>>> *Phone: +94715478185* >>>>>> *LinkedIn: http://www.linkedin.com/in/bhathiyaj* >>>>>> *Twitter: https://twitter.com/bhathiyax* >>>>>> >>>>>> _______________________________________________ >>>>>> Dev mailing list >>>>>> [email protected] >>>>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>>>> >>>>>> >>>>> >>>>> Regards, >>>>> Prabath >>>>> -- >>>>> Prabath Abeysekara >>>>> Email: [email protected] <[email protected]> >>>>> Mobile: +94774171471 >>>>> >>>>> <http://harshana05.blogspot.com/> >>>>> >>>> >>>> >>>> >>>> -- >>>> *Bhathiya Jayasekara* >>>> *Software Engineer,* >>>> *WSO2 inc., http://wso2.com* >>>> * >>>> * >>>> *Phone: +94715478185* >>>> *LinkedIn: http://www.linkedin.com/in/bhathiyaj* >>>> *Twitter: https://twitter.com/bhathiyax* >>>> >>>> _______________________________________________ >>>> Dev mailing list >>>> [email protected] >>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>> >>>> >>> >>> >>> -- >>> Paul Fremantle >>> CTO and Co-Founder, WSO2 >>> OASIS WS-RX TC Co-chair, VP, Apache Synapse >>> >>> UK: +44 207 096 0336 >>> US: +1 646 595 7614 >>> >>> blog: http://pzf.fremantle.org >>> twitter.com/pzfreo >>> [email protected] >>> >>> wso2.com Lean Enterprise Middleware >>> >>> Disclaimer: This communication may contain privileged or other >>> confidential information and is intended exclusively for the addressee/s. >>> If you are not the intended recipient/s, or believe that you may have >>> received this communication in error, please reply to the sender indicating >>> that fact and delete the copy you received and in addition, you should not >>> print, copy, retransmit, disseminate, or otherwise use the information >>> contained in this communication. Internet communications cannot be >>> guaranteed to be timely, secure, error or virus-free. The sender does not >>> accept liability for any errors or omissions. >>> >> >> >> >> -- >> *Bhathiya Jayasekara* >> *Software Engineer,* >> *WSO2 inc., http://wso2.com* >> * >> * >> *Phone: +94715478185* >> *LinkedIn: http://www.linkedin.com/in/bhathiyaj* >> *Twitter: https://twitter.com/bhathiyax* >> >> _______________________________________________ >> Dev mailing list >> [email protected] >> http://wso2.org/cgi-bin/mailman/listinfo/dev >> >> > -- *Bhathiya Jayasekara* *Software Engineer,* *WSO2 inc., http://wso2.com* * * *Phone: +94715478185* *LinkedIn: http://www.linkedin.com/in/bhathiyaj* *Twitter: https://twitter.com/bhathiyax*
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