Hi Phil,

What’s your deployment of your HBase cluster? Is it deployed as a standalone 
cluster?

Here is a blog which have mentioned the settings of NN 
HA(http://kylin.apache.org/blog/2016/06/10/standalone-hbase-cluster/). But the 
scene is deploying HBase cluster as a standalone cluster.

See if it can help you.

Best Regards

Lijun Cao


> 在 2018年11月13日,02:39,Phil Scott <[email protected]> 写道:
> 
> Folks,
>  
> My real question:  Are there any settings in kylin.properties, or in the 
> hdfs-site.xml or hive-site.xml, that can clue Kylin into the required syntax 
> for HA HDFS urls?
>  
> Background:
>  
> I have been running Kylin 2.3.1 for almost a year (very happily), on a Horton 
> HDP 2.6 cluster.  This weekend, my HDFS namenode had an issue and went down.  
> I decided to upgrade it to HDFS High Availability mode.
> See: 
> https://docs.hortonworks.com/HDPDocuments/Ambari-2.6.2.2/bk_ambari-operations/content/how_to_configure_namenode_high_availability.html
>  
> <https://docs.hortonworks.com/HDPDocuments/Ambari-2.6.2.2/bk_ambari-operations/content/how_to_configure_namenode_high_availability.html>
>  for details.
>  
> My HDFS cluster is now operating in HA mode, and now my Kylin Cube Builds are 
> failing on step 1.  They’ve been working fine up until this change.
>  
> Once in HA mode, HDFS clients are supposed to recognize from the 
> hdfs-site.conf file that the HA mode is enabled, and use a different syntax 
> for talking to HDFS urls.  For example, in the logs for cube-build step 1, 
> Kylin is trying to tell Hive to create an external table and map its 
> “location” to an HDFS location, using the old NameNode’s hostname directly 
> (like this…)
>  
> (**** CREATE EXTERNAL TABLE code snipped out above ***)
>  
> STORED AS SEQUENCEFILE
> LOCATION 'hdfs://pschd01.internaldomain.com:8020/ 
> <hdfs://pschd01.internaldomain.com:8020/kylin/kylin_metadata/kylin-51b56b1a-0f95-4825-ab13-d23a5ccb90ee/kylin_intermediate_ereputationv2_reviews_distinct_v2_prod_cube_453e6583_b7fb_4e62_8ffc_a330bb4e246f>kylin/kylin_metadata/kylin-51b56b1a-0f95-4825-ab13-d23a5ccb90ee/kylin_intermediate_ereputationv2_reviews_distinct_v2_prod_cube_453e6583_b7fb_4e62_8ffc_a330bb4e246f
>  
> <hdfs://pschd01.internaldomain.com:8020/kylin/kylin_metadata/kylin-51b56b1a-0f95-4825-ab13-d23a5ccb90ee/kylin_intermediate_ereputationv2_reviews_distinct_v2_prod_cube_453e6583_b7fb_4e62_8ffc_a330bb4e246f>';
>  
> (*** ALTER TABLE command comes next ***
>  
> In the above, the ‘hdfs://pschd01.internaldomain.com:8020/’ 
> <hdfs://pschd01.internaldomain.com:8020/%E2%80%99> address is directly 
> addressing the old HDFS NameNode.  This throws an error as follows:
>  
> Failed with exception Wrong FS: hdfs://pschd01.internaldomain.com:8020 
> <hdfs://pschd01.internaldomain.com:8020/kylin/kylin_metadata/kylin-51b56b1a-0f95-4825-ab13-d23a5ccb90ee/kylin_intermediate_ereputationv2_reviews_distinct_v2_prod_cube_453e6583_b7fb_4e62_8ffc_a330bb4e246f/.hive-staging_hive_2018-11-12_01-22-26_487_4731507377031334971-1/-ext-10000>/kylin/kylin_metadata/kylin-51b56b1a-0f95-4825-ab13-d23a5ccb90ee/kylin_intermediate_ereputationv2_reviews_distinct_v2_prod_cube_453e6583_b7fb_4e62_8ffc_a330bb4e246f/.hive-staging_hive_2018-11-12_01-22-26_487_4731507377031334971-1/-ext-10000
>  
> <hdfs://pschd01.internaldomain.com:8020/kylin/kylin_metadata/kylin-51b56b1a-0f95-4825-ab13-d23a5ccb90ee/kylin_intermediate_ereputationv2_reviews_distinct_v2_prod_cube_453e6583_b7fb_4e62_8ffc_a330bb4e246f/.hive-staging_hive_2018-11-12_01-22-26_487_4731507377031334971-1/-ext-10000>,
>  expected: hdfs://bdp01 <hdfs://bdp01>
> FAILED: Execution Error, return code 1 from 
> org.apache.hadoop.hive.ql.exec.MoveTask
> 
>  
> So, Hive is complaining that it is expecting to see the new HA syntax which 
> is:   hdfs://<ha_service_name>/  instead of 
> hdfs://<namenode_host>:<namenode_port>/
>  
> It looks like Kylin is generating HIVE statements that use the old namenode 
> host syntax, but needs to somehow be configured to use the new HDFS HA 
> syntax. 
>  
> I appreciate any help!!!
>  
> -Phil

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