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35 discussions - 109 posts

  • Hello Experts: I want to install impala in a cluster included 5 computers. I read the document in Cloudera.com and used yum installation instead of cloudera manager. Now i have a question : Should i ...
    Dec 14, 2012 at 3:13 am
    Dec 19, 2012 at 2:16 am
  • I loaded a file and ran a simple count in Impala and hive. I made sure Impala catalog was refreshed. The count(*) query yields different results. Hive has the correct result. Any ideas? Thanks, Ram --
    Ram KrishnamurthyRam Krishnamurthy
    Dec 30, 2012 at 1:55 am
    Jun 13, 2013 at 8:20 pm
  • Impala is claimed to be not only host awareness but also disk awareness. First, could anyone make some clarify about host awareness and disk awareness. Is host awareness the same thing with local ...
    Dec 27, 2012 at 12:56 pm
    Jan 3, 2013 at 9:00 pm
  • Hi there, I'm using a 64bits Centos 6.3 distrib witha running Hive + Impala. I installed unixODBC from the official sources, and installed the libhiveodbc drivers as stated in ...
    Sékine CoulibalySékine Coulibaly
    Dec 28, 2012 at 10:26 pm
    Dec 31, 2012 at 9:00 pm
  • HI, I am trying to configure impala to work with odbc following this instructions(https://ccp.cloudera.com/display/IMPALA10BETADOC/Configuring+Impala+to+Work+with+ODBC). After all this configuration, ...
    Lamb gongLamb gong
    Dec 25, 2012 at 8:13 am
    Dec 28, 2012 at 2:23 am
  • Hi there, I installed impala from the packages and have the state store and impalad running. I loaded the tab1.csv file in HDFS as showed in the documentation into /user/hive. When I use impala-shell ...
    Sékine CoulibalySékine Coulibaly
    Dec 24, 2012 at 1:09 pm
    Feb 27, 2013 at 7:19 pm
  • What version does the source correspond to? Is it the latest? It looks like there's been a release in the past week, but the latest commit is 1 month ago. Thanks for all the hard work, I am really ...
    Dan Di SpaltroDan Di Spaltro
    Dec 9, 2012 at 9:12 pm
    Jan 18, 2013 at 3:57 pm
  • Here is my test environment: –node1 – hdfs(datanode), impala(impalad), mapreduce(task tracker), 2CPU, 8G mem, PC –node2 – hdfs(datanode), impala(impalad), mapreduce(task tracker), 2CPU, 8G mem, PC ...
    Dec 21, 2012 at 9:37 am
    Dec 23, 2012 at 5:18 pm
  • Hi, I downloaded the impala code from github and built the code successfully on Cent OS 6.2. I wonder if there is any way to package the built artifacts into a tar ball or a rpm package? Thanks, Jian ...
    Jian FangJian Fang
    Dec 21, 2012 at 6:45 am
    Dec 21, 2012 at 6:55 pm
  • Hi, As I could comprehend, We need to submit query to any one of the planner among the data nodes available. As an end user, using ODBC connectivity, how will I know if a node is alive? Is there a ...
    G.S.Vijay raajaaG.S.Vijay raajaa
    Dec 28, 2012 at 5:24 am
    Jul 16, 2013 at 5:39 pm
  • My test environment node1 datanode(impalad) VM 4CPU 4G mem node2 datanode(impalad) VM 4CPU 4G mem node3 datanode(impalad) VM 4CPU 8G mem node4 namenode(statestored) my sql like this: select ...
    Dec 28, 2012 at 3:55 pm
    Dec 31, 2012 at 7:25 pm
  • Hi, I've compiled and run impala successfully a week ago. When I start my virtual machine and run it again today, strange things happen. The Impalad started quite fine, but the impala-shell throws ...
    Dec 27, 2012 at 3:00 am
    Dec 28, 2012 at 5:44 pm
  • Hi Zhen.nan, Fantastic work putting this very thorough and accurate analysis of Impala and it's internals! Please keep us posted on any further evaluations and/or questions. A quick note that the ...
    Justin EricksonJustin Erickson
    Dec 18, 2012 at 11:21 pm
    Dec 21, 2012 at 7:47 pm
  • Hello, I thought these scripts may be useful to someone. They auto-detect the hostname and IP address (assuming eth0) of the host which starts the script. I upload them in a "works for me" state, but ...
    David LauzonDavid Lauzon
    Dec 20, 2012 at 12:47 am
    Dec 21, 2012 at 2:10 am
  • Hi, When I configure hive Metastore settings under Impala section in Cloudera manager, the modified version of hive-site pointing to the mysql metastore is not getting updated in the node. The ...
    G.S.Vijay raajaaG.S.Vijay raajaa
    Dec 18, 2012 at 1:26 pm
    Dec 18, 2012 at 3:41 pm
  • Thanks Jonathan for the replay, I tried with Connection URL as :"jdbc:odbc:IMPALA-SERVER" but I am getting an exception: java.lang.NullPointerException at ...
    Sachin joseSachin jose
    Dec 10, 2012 at 12:06 pm
    Jan 21, 2013 at 1:45 am
  • It is said that Impala has no single point of failure. But if the machine holds Impala State Store goes down, can Impala cluster work normally? Could someone explain it to me specifically? Thanks! --
    Dec 21, 2012 at 6:46 am
    Dec 21, 2012 at 6:17 pm
  • Hi, I wanted to use beeswax to run impala queries. I had configured hue as : [beeswax] beeswax_server_host=<Impala daemon hostname beeswax_server_port=<Impala daemon port under hue configuration in ...
    G.S.Vijay raajaaG.S.Vijay raajaa
    Dec 18, 2012 at 3:52 pm
    Dec 18, 2012 at 6:02 pm
  • Hi Impala Users, Please take a look our latest blog for the current roadmap, release schedule, and community plan for the Cloudera Impala project ...
    Justin EricksonJustin Erickson
    Dec 14, 2012 at 6:24 pm
    Dec 15, 2012 at 1:39 am
  • Hello Experts, I have a quick question regarding the joins in impala. Since impala joins are performed in RAM, does the total RAM available in the cluster is limited by the amount available on a ...
    Romit SinghaiRomit Singhai
    Dec 13, 2012 at 3:26 pm
    Dec 13, 2012 at 8:51 pm
  • According to Google's paper about Dremel, Google has a server tree(root server, level 1 server, leverl 2 server,... leaf server). Each server except the leaf servers do query re-writed for the server ...
    Dec 28, 2012 at 1:01 pm
    Dec 28, 2012 at 10:08 pm
  • Hi, Because we have hadoop 1.0 clusters and I like to know if it is impossible to run impala with hadoop 1.0 clusters. If not, how much effort to make it work? Also, we have hadoop 2.0 clusters but ...
    Jian FangJian Fang
    Dec 21, 2012 at 7:00 pm
    Dec 22, 2012 at 2:09 am
  • I saw some code about trevni in impala. and cloudera said trevni to be support in GA. did you finish most of the job to support trevni? and the performance showed in you report was based on what kind ...
    Dec 19, 2012 at 10:09 am
    Dec 19, 2012 at 4:07 pm
  • Hi, I could see that Impala doesn't support stored procedures. One of my use cases requires me to handle table lookups and direct the flow using conditional constraints. 1) Am I to use a java code ...
    G.S.Vijay raajaaG.S.Vijay raajaa
    Dec 17, 2012 at 4:33 am
    Dec 17, 2012 at 5:45 pm
  • Hi, The installation/config instruction be found towards the bottom of: https://ccp.cloudera.com/display/IMPALA10BETADOC/Installing+Impala Let us know if there's anything unclear there. Thanks, Alan ...
    Dec 17, 2012 at 8:22 am
    Dec 17, 2012 at 2:57 pm
  • Hello Experts, I am working on comparing impala with hive on a cluster with 8 nodes mostly from response time perspective. I will really appreciate if people can share there experiences in this ...
    Romit SinghaiRomit Singhai
    Dec 13, 2012 at 10:05 pm
    Dec 14, 2012 at 2:29 am
  • Hi everyone, Sorry to bother, I've been trying to build impala from source code in Debian for one or two weeks, following the guidance on ...
    Dec 11, 2012 at 12:18 pm
    Dec 12, 2012 at 6:08 pm
  • Hi, Any idea if / when support for lateral views created in hive will be available in impala? Regards, Suresh. --
    Suresh KSuresh K
    Dec 12, 2012 at 10:33 am
    Dec 12, 2012 at 3:43 pm
  • To Matt, and all, concur your earlier speculation, I got the same compilation err and able to resolve by rebuilding latest boost lib, say 1.50. FYI Merry Xmas & Happy New Year. Cheers, Jason --
    Jason ShihJason Shih
    Dec 25, 2012 at 10:17 am
    Dec 25, 2012 at 10:17 am
  • Hi list, just FYI This is a good slides about Impala benchmark vs. Hive. Cloudera Impala Performance Evaluation (with Comparison to Hive) Slides deck is here ...
    Tatsuo KawasakiTatsuo Kawasaki
    Dec 20, 2012 at 6:06 am
    Dec 20, 2012 at 6:06 am
  • HI Nong and Alan, All issues are resolved. #3. I didn't changed the config (dfs.datanode.hdfs-blocks-metadata.enabled was set to true in hdfs-site.xml already), but it was probably a permission ...
    David LauzonDavid Lauzon
    Dec 20, 2012 at 12:01 am
    Dec 20, 2012 at 12:01 am
  • Hi Zhennan, The slides look good. Here are couple notes: - Slide 10 * "Hive compatible meta store and interface". Impala actually depends on Hive's MetaStore, not a Hive compatible "meta store". This ...
    Carl SteinbachCarl Steinbach
    Dec 14, 2012 at 6:16 pm
    Dec 14, 2012 at 6:16 pm
  • Hi - I installed CDH via package and installed impala via cloudera repo. Everything seems normal except it can't show execution time after the query result. Like this ...
    Dec 11, 2012 at 8:54 am
    Dec 11, 2012 at 8:54 am
  • Hi Suresh, Sounds like a bug on our side. I've filed JIRA https://issues.cloudera.org/browse/IMPALA-9 it. Thanks for reporting it..!! Alan --
    Alan ChoiAlan Choi
    Dec 10, 2012 at 6:53 pm
    Dec 10, 2012 at 6:53 pm
  • Thanks Nong The issue was because of the permission. I changed the permission for the directory ...
    Sachin joseSachin jose
    Dec 10, 2012 at 7:09 am
    Dec 10, 2012 at 7:09 am
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36 users for December 2012

Lyrebird1999: 14 posts Marcel Kornacker: 10 posts Justin Erickson: 9 posts Lenni Kuff: 7 posts tsubasa Ma: 6 posts Yyx: 6 posts G.S.Vijay raajaa: 5 posts Jonathan Seidman: 5 posts Sékine Coulibaly: 5 posts Jian Fang: 4 posts Alan Choi: 3 posts Lamb gong: 3 posts Ram Krishnamurthy: 3 posts Romit Singhai: 3 posts Dan Di Spaltro: 2 posts David Lauzon: 2 posts Ishaan Joshi: 2 posts Sachin jose: 2 posts Adam Smieszny: 1 post Alexander Alten-Lorenz: 1 post
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