At Orange portails we are presently testing Cassandra 1.2.0 beta/rc with Java 7, and presnetly we have no issues
2012/12/22 Brian Tarbox <tar...@cabotresearch.com>: > What I saw in all cases was > a) set JAVA_HOME to java7, run program fail > b) set JAVA_HOME to java6, run program success > > I should have better notes but I'm at a 6 person startup so working tools > gets used and failing tools get deleted. > > Brian > > > On Fri, Dec 21, 2012 at 3:54 PM, Bryan Talbot <btal...@aeriagames.com> > wrote: >> >> Brian, did any of your issues with java 7 result in corrupting data in >> cassandra? >> >> We just ran into an issue after upgrading a test cluster from Cassandra >> 1.1.5 and Oracle JDK 1.6.0_29-b11 to Cassandra 1.1.7 and 7u10. >> >> What we saw is values in columns with validation >> Class=org.apache.cassandra.db.marshal.LongType that were proper integers >> becoming corrupted so that they become stored as strings. I don't have a >> reproducible test case yet but will work on making one over the holiday if I >> can. >> >> For example, a column with a long type that was originally written and >> stored properly (say with value 1200) was somehow changed during cassandra >> operations (compaction seems the only possibility) to be the value '1200' >> with quotes. >> >> The data was written using the phpcassa library and that application and >> library haven't been changed. This has only happened on our test cluster >> which was upgraded and hasn't happened on our live cluster which was not >> upgraded. Many of our column families were affected and all affected >> columns are Long (or bigint for cql3). >> >> Errors when reading using CQL3 command client look like this: >> >> Failed to decode value '1356441225' (for column 'expires') as bigint: >> unpack requires a string argument of length 8 >> >> and when reading with cassandra-cli the error is >> >> [default@cf] get >> token['fbc1e9f7cc2c0c2fa186138ed28e5f691613409c0bcff648c651ab1f79f9600b']; >> => (column=client_id, value=8ec4c29de726ad4db3f89a44cb07909c04f90932d, >> timestamp=1355836425784329, ttl=648000) >> A long is exactly 8 bytes: 10 >> >> >> >> >> -Bryan >> >> >> >> >> >> On Mon, Dec 17, 2012 at 7:33 AM, Brian Tarbox <tar...@cabotresearch.com> >> wrote: >>> >>> I was using jre-7u9-linux-x64 which was the latest at the time. >>> >>> I'll confess that I did not file any bugs...at the time the advice from >>> both the Cassandra and Zookeeper lists was to stay away from Java 7 (and my >>> boss had had enough of my reporting that "the problem was Java 7" for me to >>> spend a lot more time getting the details). >>> >>> Brian >>> >>> >>> On Sun, Dec 16, 2012 at 4:54 AM, Sylvain Lebresne <sylv...@datastax.com> >>> wrote: >>>> >>>> On Sat, Dec 15, 2012 at 7:12 PM, Michael Kjellman >>>> <mkjell...@barracuda.com> wrote: >>>>> >>>>> What "issues" have you ran into? Actually curious because we push >>>>> 1.1.5-7 really hard and have no issues whatsoever. >>>>> >>>> >>>> A related question is "which which version of java 7 did you try"? The >>>> first releases of java 7 were apparently famous for having many issues but >>>> it seems the more recent updates are much more stable. >>>> >>>> -- >>>> Sylvain >>>> >>>>> >>>>> On Dec 15, 2012, at 7:51 AM, "Brian Tarbox" <tar...@cabotresearch.com> >>>>> wrote: >>>>> >>>>> We've reverted all machines back to Java 6 after running into numerous >>>>> Java 7 issues...some running Cassandra, some running Zookeeper, others >>>>> just >>>>> general problems. I don't recall any other major language release being >>>>> such a mess. >>>>> >>>>> >>>>> On Fri, Dec 14, 2012 at 5:07 PM, Bill de hÓra <b...@dehora.net> wrote: >>>>>> >>>>>> "At least that would be one way of defining "officially supported". >>>>>> >>>>>> Not quite, because, Datastax is not Apache Cassandra. >>>>>> >>>>>> "the only issue related to Java 7 that I know of is CASSANDRA-4958, >>>>>> but that's osx specific (I wouldn't advise using osx in production >>>>>> anyway) >>>>>> and it's not directly related to Cassandra anyway so you can easily use >>>>>> the >>>>>> beta version of snappy-java as a workaround if you want to. So that non >>>>>> blocking issue aside, and as far as we know, Cassandra supports Java 7. >>>>>> Is >>>>>> it rock-solid in production? Well, only repeated use in production can >>>>>> tell, >>>>>> and that's not really in the hand of the project." >>>>>> >>>>>> Exactly right. If enough people use Cassandra on Java7 and enough >>>>>> people file bugs about Java 7 and enough people work on bugs for Java 7 >>>>>> then >>>>>> Cassandra will eventually work well enough on Java7. >>>>>> >>>>>> Bill >>>>>> >>>>>> On 14 Dec 2012, at 19:43, Drew Kutcharian <d...@venarc.com> wrote: >>>>>> >>>>>> > In addition, the DataStax official documentation states: "Versions >>>>>> > earlier than 1.6.0_19 should not be used. Java 7 is not recommended." >>>>>> > >>>>>> > http://www.datastax.com/docs/1.1/install/install_rpm >>>>>> > >>>>>> > >>>>>> > >>>>>> > On Dec 14, 2012, at 9:42 AM, Aaron Turner <synfina...@gmail.com> >>>>>> > wrote: >>>>>> > >>>>>> >> Does Datastax (or any other company) support Cassandra under Java >>>>>> >> 7? >>>>>> >> Or will they tell you to downgrade when you have some problem, >>>>>> >> because >>>>>> >> they don't support C* running on 7? >>>>>> >> >>>>>> >> At least that would be one way of defining "officially supported". >>>>>> >> >>>>>> >> On Fri, Dec 14, 2012 at 2:22 AM, Sylvain Lebresne >>>>>> >> <sylv...@datastax.com> wrote: >>>>>> >>> What kind of official statement do you want? As far as I can be >>>>>> >>> considered >>>>>> >>> an official voice of the project, my statement is: "various people >>>>>> >>> run in >>>>>> >>> production with Java 7 and it seems to work". >>>>>> >>> >>>>>> >>> Or to answer the initial question, the only issue related to Java >>>>>> >>> 7 that I >>>>>> >>> know of is CASSANDRA-4958, but that's osx specific (I wouldn't >>>>>> >>> advise using >>>>>> >>> osx in production anyway) and it's not directly related to >>>>>> >>> Cassandra anyway >>>>>> >>> so you can easily use the beta version of snappy-java as a >>>>>> >>> workaround if you >>>>>> >>> want to. So that non blocking issue aside, and as far as we know, >>>>>> >>> Cassandra >>>>>> >>> supports Java 7. Is it rock-solid in production? Well, only >>>>>> >>> repeated use in >>>>>> >>> production can tell, and that's not really in the hand of the >>>>>> >>> project. We do >>>>>> >>> obviously encourage people to try Java 7 as much as possible and >>>>>> >>> report any >>>>>> >>> problem they may run into, but I would have though this goes >>>>>> >>> without saying. >>>>>> >>> >>>>>> >>> >>>>>> >>> On Fri, Dec 14, 2012 at 4:05 AM, Rob Coli <rc...@palominodb.com> >>>>>> >>> wrote: >>>>>> >>>> >>>>>> >>>> On Thu, Dec 13, 2012 at 11:43 AM, Drew Kutcharian >>>>>> >>>> <d...@venarc.com> wrote: >>>>>> >>>>> With Java 6 begin EOL-ed soon >>>>>> >>>>> (https://blogs.oracle.com/java/entry/end_of_public_updates_for), >>>>>> >>>>> what's the >>>>>> >>>>> status of Cassandra's Java 7 support? Anyone using it in >>>>>> >>>>> production? Any >>>>>> >>>>> outstanding *known* issues? >>>>>> >>>> >>>>>> >>>> I'd love to see an official statement from the project, due to >>>>>> >>>> the >>>>>> >>>> sort of EOL issues you're referring to. Unfortunately previous >>>>>> >>>> requests on this list for such a statement have gone unanswered. >>>>>> >>>> >>>>>> >>>> The non-official response is that various people run in >>>>>> >>>> production >>>>>> >>>> with Java 7 and it seems to work. :) >>>>>> >>>> >>>>>> >>>> =Rob >>>>>> >>>> >>>>>> >>>> -- >>>>>> >>>> =Robert Coli >>>>>> >>>> AIM>ALK - rc...@palominodb.com >>>>>> >>>> YAHOO - rcoli.palominob >>>>>> >>>> SKYPE - rcoli_palominodb >>>>>> >>> >>>>>> >>> >>>>>> >> >>>>>> >> >>>>>> >> >>>>>> >> -- >>>>>> >> Aaron Turner >>>>>> >> http://synfin.net/ Twitter: @synfinatic >>>>>> >> http://tcpreplay.synfin.net/ - Pcap editing and replay tools for >>>>>> >> Unix & Windows >>>>>> >> Those who would give up essential Liberty, to purchase a little >>>>>> >> temporary >>>>>> >> Safety, deserve neither Liberty nor Safety. >>>>>> >> -- Benjamin Franklin >>>>>> >> "carpe diem quam minimum credula postero" >>>>>> > >>>>>> >>>>> >>>>> >>>>> ---------------------------------- >>>>> Join Barracuda Networks in the fight against hunger. >>>>> To learn how you can help in your community, please visit: >>>>> http://on.fb.me/UAdL4f >>>>> >>>> >>>> >>> >> > -- Close the World, Open the Net http://www.linux-wizard.net
