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2,155 discussions - 10,744 posts

  • The Apache Cassandra PMC would like to welcome its newest members. In alphabetical order, these are Aaron Morton, Dave Brosius, and Tyler Hobbs. We would also like to welcome new committer Jeff ...
    Jonathan EllisJonathan Ellis
    Jun 16, 2016 at 8:11 pm
    Jun 16, 2016 at 8:11 pm
  • Hi to all, DS Documentation says that *In Cassandra 3.6 and later, clustering columns can be defined in WHERE clauses if ALLOW FILTERING is also used even if a secondary index is not created. The ...
    Giampaolo TrapassoGiampaolo Trapasso
    Jun 15, 2016 at 3:03 pm
    Jun 15, 2016 at 4:00 pm
  • Hi, I'm interested in the SSTable index file format and particularly in Cassandra 2.2 which uses the SSTable version "ma". Apart from keys and their corresponding offsets in the data file what else ...
    Antonis PapaioannouAntonis Papaioannou
    Jun 15, 2016 at 1:53 pm
    Jun 15, 2016 at 7:37 pm
  • Hi, Today I noticed there is a https://reviews.apache.org/r/# website which can be used for code review. Why not use it or even better use GitHub PR code review facilities? Best Regards
    Mahdi MohammadiMahdi Mohammadi
    Jun 15, 2016 at 8:47 am
    Jun 15, 2016 at 1:44 pm
  • Hey Namaskara~Nalama~Guten Tag~Bonjour I tried searching for the fileformat of how cassandra stores its data, but I couldn't find any... Suppose I have a database structure of the following format ...
    Deepak GoelDeepak Goel
    Jun 15, 2016 at 7:30 am
    Jun 15, 2016 at 7:45 pm
  • ​Seems like a virtual memory limit. ​
    Gaurav BhatnagarGaurav Bhatnagar
    Jun 14, 2016 at 10:39 pm
    Jun 14, 2016 at 10:39 pm
  • Hi All, Im debugging a issue in Cassandra 3.5 which was reported in user mailing list earlier, is pretty critical to solve at our end. ill give a brief intro: On issuing this query:; select ...
    Bhuvan RawalBhuvan Rawal
    Jun 14, 2016 at 5:26 am
    Jun 14, 2016 at 8:14 am
  • Seems like Apache Jira is 100% down, again, for like the 500th time in the last 2 months. Just me or everyone?
    Michael KjellmanMichael Kjellman
    Jun 13, 2016 at 8:18 pm
    Jun 16, 2016 at 12:38 am
  • Hi, I am trying to understand the algorithm of STCS. As per my current understanding of the code, there seems to be no impact of setting bucket_low in the STCS compaction algorithm. Moreover, I see ...
    Anuj WadehraAnuj Wadehra
    Jun 13, 2016 at 5:45 pm
    Jun 15, 2016 at 12:57 pm
  • With 6 binding +1 and no -1 the vote passes
    Jake LucianiJake Luciani
    Jun 13, 2016 at 4:59 pm
    Jun 13, 2016 at 4:59 pm
  • With 6 binding +1, one non-binding +1 and no -1 the vote passes ---------- Forwarded message ---------- From: Tommy Stendahl <<span class="m_body_email_addr" title="05d1a62255612ddeeb374a433d402bbf" ...
    Jake LucianiJake Luciani
    Jun 13, 2016 at 4:48 pm
    Jun 13, 2016 at 4:48 pm
  • Hi, When an INSERT command is received in a coordinator node, it uses a partitioner to find out the node which is responsible for storing that row. It then sends the command to that node to be ...
    Mahdi MohammadiMahdi Mohammadi
    Jun 11, 2016 at 7:31 pm
    Jun 11, 2016 at 9:25 pm
  • Hey Namaskara~Nalama~Guten Tag~Bonjour I am a newbie. Which would be the best book for a newbie to learn Cassandra? Thank You Deepak -- Keigu Deepak 73500 12833 www.simtree.net, <span ...
    Deepak GoelDeepak Goel
    Jun 11, 2016 at 2:58 pm
    Jun 14, 2016 at 11:14 pm
  • I've posted my notes from the NGCC talks here: https://docs.google.com/document/d/1rYyJWDsiwGmc3IUNCV_AKhzUJghLwA_iWDzog-eDSSE Videos for most of the talks are available here ...
    Jonathan EllisJonathan Ellis
    Jun 10, 2016 at 8:48 pm
    Jun 10, 2016 at 10:37 pm
  • Hi, I would like to run and debug unit tests directly in Intellij Idea. Current Ant runner does not work for me. I studied the problem a bit. Tests use java-agent that complicates it a bit. Also I ...
    Jan KotekJan Kotek
    Jun 9, 2016 at 4:26 pm
    Jun 12, 2016 at 7:41 am
  • I propose the following artifacts for release as 3.0.7. sha1: 040ac666ac5cdf9cd0a01a845f2ea0af3a81a08b Git ...
    Jake LucianiJake Luciani
    Jun 8, 2016 at 7:36 pm
    Jun 9, 2016 at 12:40 pm
  • I propose the following artifacts for release as 3.7. sha1: 6815dc970565e6cd1e0169b5379f37da7a5a8a32 Git: http://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=shortlog;h=refs/tags/3.7-tentative ...
    Jake LucianiJake Luciani
    Jun 8, 2016 at 7:21 pm
    Jun 9, 2016 at 8:17 am
  • Hi all, In light of the confusion around documentation (people asking on dev list about driver docs or DataStax docs), I think we should accelerate the plans to finish migrating our official ...
    Jonathan EllisJonathan Ellis
    Jun 7, 2016 at 8:35 pm
    Jun 8, 2016 at 10:21 am
  • These releases have been tentatively frozen and tagged for testing
    Jake LucianiJake Luciani
    Jun 6, 2016 at 8:34 pm
    Jun 6, 2016 at 8:34 pm
  • With 6 binding +1, 6 non-binding +1 and no -1 the vote passes. -- http://twitter.com/tjake
    Jake LucianiJake Luciani
    Jun 6, 2016 at 3:48 pm
    Jun 6, 2016 at 3:48 pm
  • Team, I was checking the documentation for TupleType in DataStax docs here <https://docs.datastax.com/en/latest-java-driver/java-driver/reference/tupleTypes.html and the code example was like this ...
    Mahdi MohammadiMahdi Mohammadi
    Jun 6, 2016 at 2:33 pm
    Jun 7, 2016 at 3:38 am
  • Output of `ant test` for each test suit contains this warning: *test:* * [mkdir] Created dir: /Users/mahdi/box/cassandra/build/test/cassandra* * [mkdir] Created dir ...
    Mahdi MohammadiMahdi Mohammadi
    Jun 5, 2016 at 1:46 am
    Jun 5, 2016 at 2:44 am
  • Hi All, I’m investigating something a few ASF members contacted me about and pointed out, so I’m hoping you can help guide me here as a community. I have heard that a company, DataStax, whose ...
    Chris MattmannChris Mattmann
    Jun 4, 2016 at 2:29 am
    Jun 8, 2016 at 1:54 pm
  • Hi, Would someone please add me to the Wiki <https://wiki.apache.org/cassandra/ contributors? Username: MahdiMohammadi <https://wiki.apache.org/cassandra/MahdiMohammadi Best Regards
    Mahdi MohammadiMahdi Mohammadi
    Jun 1, 2016 at 9:04 pm
    Jun 2, 2016 at 12:57 am
  • I propose the following artifacts for release as 3.6. sha1: 8d22d9fd1842c59ea65a3793aceb5a78c5852351 Git: http://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=shortlog;h=refs/tags/3.6-tentative ...
    Jake LucianiJake Luciani
    Jun 1, 2016 at 5:30 pm
    Jun 3, 2016 at 8:03 am
  • Hi C* developers, Digging in the code because of a time issue during a repair full on our ~ 60 nodes cluster, I've been able to see that this stage can be significant (up to 60 percent of) ...
    Cyril ScetbonCyril Scetbon
    May 31, 2016 at 3:59 pm
    May 31, 2016 at 11:08 pm
  • Regarding CASSANDRA-11664 <https://issues.apache.org/jira/browse/CASSANDRA-11664 : I checked this issue and seems it's because in Parser.g file for ANTLR we have specified that casing should not be ...
    Mahdi MohammadiMahdi Mohammadi
    May 23, 2016 at 1:06 am
    May 23, 2016 at 1:06 am
  • Best Regards
    Mahdi MohammadiMahdi Mohammadi
    May 21, 2016 at 11:22 pm
    May 21, 2016 at 11:27 pm
  • Hi, I can run a single unit test using `ant test -Dtest.name=TraceCqlTest`. How can I debug the test using gdb (in the terminal)? Best Regards
    Mahdi MohammadiMahdi Mohammadi
    May 20, 2016 at 1:18 am
    May 20, 2016 at 9:45 pm
  • I am trying to run `ant test` on cassandra-3.0 branch but get some errors: * [junit] Testcase: testSamplerSingleInsertionsEqualMulti(org.apache.cassandra.utils.TopKSamplerTest): FAILED* * [junit] ...
    Mahdi MohammadiMahdi Mohammadi
    May 19, 2016 at 3:12 am
    May 19, 2016 at 2:29 pm
  • Hi, cassandra devs: I'm learning cassandra and I can understand most of the techniques used. But I can't understand how cassandra ensures consistency when adding/removing a node? It seems that when a ...
    Renjie LiuRenjie Liu
    May 19, 2016 at 2:34 am
    May 19, 2016 at 9:02 am
  • I can successfully compile cassandra source using `ant` command but when running `ant test` for EncryptionUtilsTest I am getting this error: * [junit] ------------- Standard Output ---------------* * ...
    Mahdi MohammadiMahdi Mohammadi
    May 17, 2016 at 9:58 pm
    May 19, 2016 at 3:09 am
  • GitHub user mm-binary opened a pull request: https://github.com/apache/cassandra/pull/70 adding bound variables of the parsed statement to tracing output You can merge this pull request into a Git ...
    Mm-binaryMm-binary
    May 17, 2016 at 12:46 am
    May 17, 2016 at 12:46 am
  • I've pushed a temporary cassandra-3.6 branch for the regressions found during the vote. ONLY regression fixes should go into that branch. Everyone else should ignore it (*Don't* merge from 3.0- 3.6 - ...
    Jake LucianiJake Luciani
    May 13, 2016 at 2:38 pm
    May 13, 2016 at 2:38 pm
  • With 6 binding +1, 6 non-binding +1 and no -1 the vote has passed.
    Jake LucianiJake Luciani
    May 13, 2016 at 12:47 pm
    May 13, 2016 at 12:47 pm
  • With this binding -1 the vote has failed. Will re-vote once issues are fixed. -- http://twitter.com/tjake
    Jake LucianiJake Luciani
    May 13, 2016 at 12:45 pm
    May 13, 2016 at 12:45 pm
  • Hi, I was working on maintaining counters in cassandra, I read that it is not 100% accurate, I have tested them to be extremely accurate with 3.0.5 but going by docs there may be slight in accuracy ...
    Bhuvan RawalBhuvan Rawal
    May 11, 2016 at 2:50 pm
    May 11, 2016 at 7:07 pm
  • I propose the following artifacts for release as 3.0.6. sha1: 52447873a361647a5e80c547adea9cf5ee85254a Git ...
    Jake LucianiJake Luciani
    May 11, 2016 at 1:55 am
    May 12, 2016 at 1:16 pm
  • I propose the following artifacts for release as 3.6. sha1: c17cbe1875a974a00822ffbfad716abde363c8da Git: http://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=shortlog;h=refs/tags/3.6-tentative ...
    Jake LucianiJake Luciani
    May 11, 2016 at 1:55 am
    May 13, 2016 at 3:52 pm
  • Hi all, I am trying to use Cassandra (v3.5) from spark (v1.6.0 - CDH 5.7) via the datastax connector (1.6.0-M2) in scala (2.10.5). My initial test runs fine locally, but when I try to deploy it to a ...
    Ben VoganBen Vogan
    May 10, 2016 at 5:07 pm
    May 10, 2016 at 7:32 pm
  • Hello, From where do you execute the command ? on local or from an external host? Can you send me the command you wrote please? Can you send me the result of the command nodetool status ? Regards, ...
    Joly, JosselinJoly, Josselin
    May 10, 2016 at 7:21 am
    May 10, 2016 at 7:21 am
  • Hello, I am wondering if the version of Cassandra 3.0 is already included in the lastest version of Datastax entreprise, do you know somthing about it ? Best regards, Josselin Joly. [cpu_time.png]
    Joly, JosselinJoly, Josselin
    May 10, 2016 at 7:08 am
    May 10, 2016 at 12:56 pm
  • Hello devs, I'd like to introduce Kaide Mu, a bachelor student from the Polytechnic University of Valencia in Spain that had a proposal accepted on Google Summer of Code program to work on Cassandra ...
    Paulo MottaPaulo Motta
    May 9, 2016 at 8:17 pm
    May 11, 2016 at 5:46 am
  • I'd recommend you create a JIRA! That way you can get some traction on the issue. Obviously an OOM is never correct, even if your process is wrong in some way! Best, kjellman Sent from my iPhone
    Michael KjellmanMichael Kjellman
    May 9, 2016 at 3:56 am
    May 11, 2016 at 3:35 am
  • Hi, Recently I am checking the performance of creating tables. I found that MigrationStage thread spent most of the time in " mergeColumnFamilies(oldColumnFamilies, newColumnFamilies);" method. Can ...
    Jason zhao yangJason zhao yang
    May 8, 2016 at 4:29 am
    May 8, 2016 at 4:29 am
  • Hi, due to internal infrastructure changes, we have to replace all nodes with new nodes. All the existing nodes are running Cassandra Community version 2.0.9. I was thinking may be this is also an ...
    Li, GuangxingLi, Guangxing
    May 5, 2016 at 3:54 pm
    May 6, 2016 at 4:29 pm
  • Github user thobbs commented on the pull request: https://github.com/apache/cassandra/commit/55f7a53e44b5d9af767464872b74a721717ba216#commitcomment-17355539 In ...
    ThobbsThobbs
    May 4, 2016 at 4:56 pm
    May 11, 2016 at 5:51 am
  • I've tagged 3.6 and 3.0.6 tentatively for release. This means all changes to this version are effectively frozen barring a regression in the tagged version. I've created cassandra-3.7 branch and ...
    Jake LucianiJake Luciani
    May 3, 2016 at 2:47 pm
    May 3, 2016 at 2:47 pm
  • There could be disagreement on this, but I think that we are in general not very good at commenting Cassandra code and I would suggest that we make a collective effort to improve on this. And to help ...
    Sylvain LebresneSylvain Lebresne
    May 2, 2016 at 4:27 pm
    Jun 17, 2016 at 9:25 pm
  • GitHub user jasonstack opened a pull request: https://github.com/apache/cassandra/pull/69 Setup travis ci You can merge this pull request into a Git repository by running: $ git pull ...
    JasonstackJasonstack
    Apr 30, 2016 at 4:20 pm
    Apr 30, 2016 at 4:21 pm
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