Member since
03-06-2020
406
Posts
56
Kudos Received
36
Solutions
My Accepted Solutions
Title | Views | Posted |
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911 | 11-21-2024 10:40 PM | |
879 | 11-21-2024 10:12 PM | |
2689 | 07-23-2024 10:52 PM | |
2009 | 05-16-2024 12:27 AM | |
6703 | 05-01-2024 04:50 AM |
08-10-2021
05:21 PM
Can you do check 4200 port is listening or not.. Below is similar cloudera community post for your reference: https://community.cloudera.com/t5/Support-Questions/Unable-to-connect-to-port-4200-WebSSH-using-HDP-2-5/td-p/133615
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08-09-2021
05:40 PM
Hi, What is the query you are using to read the data from table? can you attach its "query profile" and coordinator logs to have a look? Regards, Chethan YM
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08-08-2021
09:47 AM
Hi, Can you provide these below details to understand the issue: 1. Initially from where you created the table in hive or impala? 2. Provide the DDL of the table that you are trying to query from impala. # show create table <table-name>; 3. list the files from hdfs path ( you will see the table path in the DDL def. ) # hdfs dfs -ls /table/path/ 4. Are you able to access the same table data from hive?( if you are facing the issues from impala? vice versa) 5. Go to HS2 logs/coordinator logs copy the entire error stack trace for the query that is failing and paste here. I think these are the basic details needed for analysing the issue. Regards, Chethan YM
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08-08-2021
09:33 AM
Hi, Please do attach the screenshot of the error and let us know what exactly you are trying to achieve and where you are facing the issue. Regards, Chethan YM
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08-08-2021
09:28 AM
Hi, Can you try the query something like below to insert the data from multiple tables? insert into DemoTable1945(StudentName,StudentAge) select tbl1.Name,tbl2.Age from DemoTable1943 tbl1,DemoTable1944 tbl2; Let us know if this helps. Regards, Chethan YM
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07-29-2021
07:09 AM
Hi, I do not think we have a command to check all the table stats in one go, If you would like to update the stats on all tables i think you should prepare a custom script for it. -> List all the tables from "show tables" command -> copy the table names and run "show table stats <table-name>" on all the tables. -> And then "compute stats <table-name>" on all the tables. You can make a custom shell script with a for loop to run the compute stats on all the tables. All this should be done from terminal.
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07-28-2021
07:31 PM
Hi, I have tested the same in my lab cluster, seems to be multi character delimiters will not works in impala. Below is my testing when i tried with ',|' Failing: Query: Create table test ( name string, place string ) ROW FORMAT DELIMITED FIELDS TERMINATED BY ',|' STORED AS TEXTFILE TBLPROPERTIES('serialization.null.format'='') ERROR: AnalysisException: ESCAPED BY values and LINE/FIELD terminators must be specified as a single character or as a decimal value in the range [-128:127]: ,| Created: [host-1abc.cloudera.com:21000] default> Create table test ( name string, place string ) ROW FORMAT DELIMITED FIELDS TERMINATED BY '|' > STORED AS TEXTFILE > TBLPROPERTIES('serialization.null.format'=''); Query: Create table test ( name string, place string ) ROW FORMAT DELIMITED FIELDS TERMINATED BY '|' STORED AS TEXTFILE TBLPROPERTIES('serialization.null.format'='') +-------------------------+ | summary | +-------------------------+ | Table has been created. | +-------------------------+ Created: [host-1abc.cloudera.com:21000] default> Create table test1 ( name string, place string ) ROW FORMAT DELIMITED FIELDS TERMINATED BY ',' > STORED AS TEXTFILE > TBLPROPERTIES('serialization.null.format'=''); Query: Create table test1 ( name string, place string ) ROW FORMAT DELIMITED FIELDS TERMINATED BY ',' STORED AS TEXTFILE TBLPROPERTIES('serialization.null.format'='') +-------------------------+ | summary | +-------------------------+ | Table has been created. | +-------------------------+
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07-05-2021
12:16 AM
Hello, Have you tried with a query like this -> select <column-name> from <table-name>; If this is not your expectation let us know in detail regarding the requirement. Regards, Chethan YM
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07-04-2021
11:36 PM
Hi @roshanbi , We can confirm you that the type of Kudu's column cannot be changed after it is created. One is that in the Known issue of document [1], the following information is explained. Non-alterable Column Types Kudu does not allow the type of a column to be altered. The second is that in the Impala documentation, there is no description that you can change the field type of Kudu. [1]. https://kudu.apache.org/docs/schema_design.html#known-limitations After your review you can accept this as a solution and it helps others who are looking for the same. Thank you, Chethan YM
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07-04-2021
11:25 PM
Hi @wbaihp , 1. Is this issue with all the queries or any few queries? 2. Please attach the query profile and its coordinator logs to have a look.
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