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https://issues.apache.org/jira/browse/HIVE-10324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14501047#comment-14501047
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Lefty Leverenz commented on HIVE-10324:
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Does this need documentation?
Hmm ... the Hive metatool isn't documented yet because I dropped the ball when
[~ashutoshc] and [~shreepadma] asked me to create a wiki page for it. If
somebody will give me a copy of the --help output then I'll take care of it
right away. Or you can wait until I get Hive installed, a long-delayed task on
my TO DO list. I tried to find the information in the code but only had
partial success.
(Also, the Fix Version should be specified above.)
> Hive metatool should take table_param_key to allow for changes to avro
> serde's schema url key
> ---------------------------------------------------------------------------------------------
>
> Key: HIVE-10324
> URL: https://issues.apache.org/jira/browse/HIVE-10324
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Affects Versions: 1.1.0
> Reporter: Szehon Ho
> Assignee: Ferdinand Xu
> Attachments: HIVE-10324.1.patch, HIVE-10324.patch,
> HIVE-10324.patch.WIP
>
>
> HIVE-3443 added support to change the serdeParams from 'metatool
> updateLocation' command.
> However, in avro it is possible to specify the schema via the tableParams:
> {noformat}
> CREATE TABLE `testavro`(
> `test` string COMMENT 'from deserializer')
> ROW FORMAT SERDE
> 'org.apache.hadoop.hive.serde2.avro.AvroSerDe'
> STORED AS INPUTFORMAT
> 'org.apache.hadoop.hive.ql.io.avro.AvroContainerInputFormat'
> OUTPUTFORMAT
> 'org.apache.hadoop.hive.ql.io.avro.AvroContainerOutputFormat'
> TBLPROPERTIES (
> 'avro.schema.url'='hdfs://namenode:8020/tmp/test.avsc',
> 'kite.compression.type'='snappy',
> 'transient_lastDdlTime'='1427996456')
> {noformat}
> Hence for those tables the 'metatool updateLocation' will not help.
> This is necessary in case like upgrade the namenode to HA where the absolute
> paths have changed.
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