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https://issues.apache.org/jira/browse/HIVE-17234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16117879#comment-16117879
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Lefty Leverenz edited comment on HIVE-17234 at 8/8/17 7:54 PM:
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Doc note: This removes 15 hive.metastore.hbase.* configs from HiveConf.java.
(Why wasn't *hive.metastore.hbase.file.metadata.threads* removed?)
Most of them haven't been documented in the wiki yet. The section "Hive
Metastore HBase" in Configuration Properties only has 3 configs:
* [hive.metastore.hbase.cache.size |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.metastore.hbase.cache.size]
(_removed by HIVE-9693 before the 2.0.0 release, so didn't belong in the wiki
in the first place_)
* [hive.metastore.hbase.cache.ttl |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.metastore.hbase.cache.ttl]
(_removed by this patch, so need to update wiki_)
* [hive.metastore.hbase.file.metadata.threads |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.metastore.hbase.file.metadata.threads]
(_still in the code_)
Here's the complete list, just for the record:
* hive.metastore.hbase.catalog.cache.size
* hive.metastore.hbase.aggregate.stats.cache.size
* hive.metastore.hbase.aggregate.stats.max.partitions
* hive.metastore.hbase.aggregate.stats.false.positive.probability
* hive.metastore.hbase.aggregate.stats.max.variance
* hive.metastore.hbase.cache.ttl (_documented in wiki_)
* hive.metastore.hbase.cache.max.writer.wait
* hive.metastore.hbase.cache.max.reader.wait
* hive.metastore.hbase.cache.max.full
* hive.metastore.hbase.cache.clean.until
* hive.metastore.hbase.connection.class
* hive.metastore.hbase.aggr.stats.cache.entries
* hive.metastore.hbase.aggr.stats.memory.ttl
* hive.metastore.hbase.aggr.stats.invalidator.frequency
* hive.metastore.hbase.aggr.stats.hbase.ttl
* hive.metastore.hbase.file.metadata.threads (_documented in wiki; not removed
here_)
was (Author: le...@hortonworks.com):
Doc note: This removes 15 hive.metastore.hbase.* configs from HiveConf.java.
(Why wasn't *hive.metastore.hbase.file.metadata.threads* removed?)
Most of them haven't been documented in the wiki yet. The section "Hive
Metastore HBase" in Configuration Properties only has 3 configs:
* [hive.metastore.hbase.cache.size |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.metastore.hbase.cache.size]
(_still in the code_)
* [hive.metastore.hbase.cache.ttl |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.metastore.hbase.cache.ttl]
(_removed by this patch, so need to update wiki_)
* [hive.metastore.hbase.cache.size |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.metastore.hbase.cache.size]
(_removed by HIVE-9693 before the 2.0.0 release, so didn't belong in the wiki
in the first place_)
Here's the complete list, just for the record:
* hive.metastore.hbase.catalog.cache.size
* hive.metastore.hbase.aggregate.stats.cache.size
* hive.metastore.hbase.aggregate.stats.max.partitions
* hive.metastore.hbase.aggregate.stats.false.positive.probability
* hive.metastore.hbase.aggregate.stats.max.variance
* hive.metastore.hbase.cache.ttl (_documented in wiki_)
* hive.metastore.hbase.cache.max.writer.wait
* hive.metastore.hbase.cache.max.reader.wait
* hive.metastore.hbase.cache.max.full
* hive.metastore.hbase.cache.clean.until
* hive.metastore.hbase.connection.class
* hive.metastore.hbase.aggr.stats.cache.entries
* hive.metastore.hbase.aggr.stats.memory.ttl
* hive.metastore.hbase.aggr.stats.invalidator.frequency
* hive.metastore.hbase.aggr.stats.hbase.ttl
* hive.metastore.hbase.file.metadata.threads (_documented in wiki; not removed
here_)
> Remove HBase metastore from master
> ----------------------------------
>
> Key: HIVE-17234
> URL: https://issues.apache.org/jira/browse/HIVE-17234
> Project: Hive
> Issue Type: Task
> Components: HBase Metastore
> Affects Versions: 3.0.0
> Reporter: Alan Gates
> Assignee: Alan Gates
> Fix For: 3.0.0
>
> Attachments: HIVE-17234.patch
>
>
> No new development has been done on the HBase metastore in at least a year,
> and to my knowledge no one is using it (nor is it even in a state to be fully
> usable). Given the lack of interest in continuing to develop it, we should
> remove it rather than leave dead code hanging around and extra tests taking
> up time in test runs.
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