Member since
12-07-2015
83
Posts
23
Kudos Received
10
Solutions
My Accepted Solutions
Title | Views | Posted |
---|---|---|
2967 | 07-11-2018 02:42 PM | |
7961 | 12-10-2017 08:26 PM | |
2240 | 11-14-2017 12:17 PM | |
16361 | 03-29-2017 06:42 AM | |
2195 | 02-22-2017 01:43 PM |
01-31-2017
04:01 PM
1 Kudo
@thewayofthinkin - No, the view should get expanded and then the resulting query will access the already loaded metadata of the table. From the order of the queries it looked like the view may be queried first, then the table, which could explain why the former took much longer than the latter.
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01-31-2017
12:37 PM
Hi gaurang, Does the long query time only occur the first time you query a view after altering it? In that case if could be related to metadata loading for the underlying table. How many partitions and files do these tables typically have? You could also check the log files for anything suspicious. Cheers, Lars
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01-27-2017
08:16 AM
Hi hakki, You could try partitioning your table and using the "show partitions" command to narrow down the set of files a row might be in. Can you give more context on the usecase without sharing private information? Cheers, Lars
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11-02-2016
04:08 AM
Hi maurin, you should be able to tell from the query profile. Run the query and then immediately after run "profile;" in the Impala shell to display the profile information, which will also contain information about the table scans. Feel free to post the profile here if you need help inspecting it. Cheers, Lars
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10-31-2016
05:34 PM
The driver should support DISTINCT. Did you encounter any errors? If so, can you please paste those error, together with the query and driver version? Thanks, Lars
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06-28-2016
02:50 PM
Hi Khalef, I don't know the answer to your question myself, but I asked around for an expert on Kite and learned that the best source for help would be the Kite project itself. You probably found their website already: http://kitesdk.org/docs/current/ It also links to their mailing list and I would like to ask you to post your question there: https://groups.google.com/a/cloudera.org/forum/#!forum/cdk-dev Apologies for the inconvenience. Best wishes, Lars
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06-24-2016
11:59 AM
Hi Khalef, Have you had a look at this blog post covering Kite? https://blog.cloudera.com/blog/2014/06/how-to-use-kite-sdk-to-easily-store-and-configure-data-in-apache-hadoop/ Cheers, Lars
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06-03-2016
05:52 AM
Impala should write its logging information to several logfiles, which contain the words INFO, WARNING, ERROR, FATAL in their name. Have you checked all of them for the affected time range?
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06-03-2016
04:38 AM
This looks more like the affected impalad crashed or somehow disappeared from the cluster. Can you check it's logs to see why it disconnected from the statestored?
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06-03-2016
03:30 AM
Hi scotty603, does the impalad on the affected node start up and keep running, despite the ThriftServer exception? Have you checked that port 22000 is actually unused prior to starting impala? Cheers, Lars
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