Hey guys. what gives! Apparently Cassandra ran on 1.7 like 5 years ago. Was their a regression?
jk https://github.com/jbellis/helenus Installation ------------ * Please use jdk 1.7; Cassandra will run with 1.6 but frequently core dumps on quad-core machines * Unpack the tar ball: On Wed, Feb 6, 2013 at 12:56 PM, Wei Zhu <wz1...@yahoo.com> wrote: > Anyone has first hand experience with Zing JVM which is claimed to be > pauseless? How do they charge, per CPU? > > Thanks > -Wei > ------------------------------ > *From:* Edward Capriolo <edlinuxg...@gmail.com> > *To:* user@cassandra.apache.org > *Sent:* Wednesday, February 6, 2013 7:07 AM > *Subject:* Re: Why do Datastax docs recommend Java 6? > > Oracle already did this once, It was called jrockit :) > http://www.oracle.com/technetwork/middleware/jrockit/overview/index.html > > Typically oracle acquires they technology and then the bits are merged > with the standard JVM. > > On Wed, Feb 6, 2013 at 2:13 AM, Viktor Jevdokimov < > viktor.jevdoki...@adform.com> wrote: > > I would prefer Oracle to own an Azul’s Zing JVM over any other (GC) to > provide it for free for anyone :) > > Best regards / Pagarbiai > *Viktor Jevdokimov* > Senior Developer > > Email: viktor.jevdoki...@adform.com > Phone: +370 5 212 3063, Fax +370 5 261 0453 > J. Jasinskio 16C, LT-01112 Vilnius, Lithuania > Follow us on Twitter: @adforminsider <http://twitter.com/#!/adforminsider> > Take a ride with Adform's Rich Media Suite<http://vimeo.com/adform/richmedia> > [image: Adform News] <http://www.adform.com/> > [image: Adform awarded the Best Employer 2012] > <http://www.adform.com/site/blog/adform/adform-takes-top-spot-in-best-employer-survey/> > > Disclaimer: The information contained in this message and attachments is > intended solely for the attention and use of the named addressee and may be > confidential. If you are not the intended recipient, you are reminded that > the information remains the property of the sender. You must not use, > disclose, distribute, copy, print or rely on this e-mail. If you have > received this message in error, please contact the sender immediately and > irrevocably delete this message and any copies. > > *From:* jef...@gmail.com [mailto:jef...@gmail.com] > *Sent:* Wednesday, February 06, 2013 02:23 > *To:* user@cassandra.apache.org > *Subject:* Re: Why do Datastax docs recommend Java 6? > > Oracle now owns the sun hotspot team, which is inarguably the highest > powered java vm team in the world. Its still really the epicenter of all > java vm development. > Sent from my Verizon Wireless BlackBerry > ------------------------------ > *From: *"Ilya Grebnov" <i...@metricshub.com> > *Date: *Tue, 5 Feb 2013 14:09:33 -0800 > *To: *<user@cassandra.apache.org> > *ReplyTo: *user@cassandra.apache.org > *Subject: *RE: Why do Datastax docs recommend Java 6? > > Also, what is particular reason to use Oracle JDK over Open JDK? Sorry, > I could not find this information online. > > Thanks, > Ilya > *From:* Michael Kjellman > [mailto:mkjell...@barracuda.com<mkjell...@barracuda.com>] > > *Sent:* Tuesday, February 05, 2013 7:29 AM > *To:* user@cassandra.apache.org > *Subject:* Re: Why do Datastax docs recommend Java 6? > > There have been tons of threads/convos on this. > > In the early days of Java 7 it was pretty unstable and there was pretty > much no convincing reason to use Java 7 over Java 6. > > Now that Java 7 has stabilized and Java 6 is EOL it's a reasonable > decision to use Java 7 and we do it in production with no issues to speak > of. > > That being said there was one potential situation we've seen as a > community where bootstrapping new node was using 3x more CPU and getting > significantly less throughput. However, reproducing this consistently never > happened AFAIK. > > I think until more people use Java 7 in production and prove it doesn't > cause any additional bugs/performance issues Datastax will update their > docs. Until now I'd say it's a safe bet to use Java 7 with Vanilla C* > 1.2.1. I hope this helps! > > Best, > Michael > > *From: *Baron Schwartz <ba...@xaprb.com> > *Reply-To: *"user@cassandra.apache.org" <user@cassandra.apache.org> > *Date: *Tuesday, February 5, 2013 7:21 AM > *To: *"user@cassandra.apache.org" <user@cassandra.apache.org> > *Subject: *Why do Datastax docs recommend Java 6? > > The Datastax docs repeatedly say (e.g. > http://www.datastax.com/docs/1.2/install/install_jre) that Java 7 is not > recommended, but they don't say why. It would be helpful to know this. Does > anyone know? > > The same documentation is referenced from the Cassandra wiki, for > example, http://wiki.apache.org/cassandra/GettingStarted > > - Baron > > > > >
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