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Posted to issues@hbase.apache.org by "Hadoop QA (JIRA)" <ji...@apache.org> on 2018/11/09 09:11:00 UTC
[jira] [Commented] (HBASE-21460) correct Document Configurable
Bucket Sizes in bucketCache
[ https://issues.apache.org/jira/browse/HBASE-21460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16681112#comment-16681112 ]
Hadoop QA commented on HBASE-21460:
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:b002b0b |
| JIRA Issue | HBASE-21460 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12947551/HBASE-21460.v1.patch |
| Optional Tests | dupname asflicense refguide |
| uname | Linux e44d515d7477 4.4.0-138-generic #164-Ubuntu SMP Tue Oct 2 17:16:02 UTC 2018 x86_64 GNU/Linux |
| Build tool | maven |
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| git revision | master / fe2265fa4a |
| maven | version: Apache Maven 3.5.4 (1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-17T18:33:14Z) |
| refguide | https://builds.apache.org/job/PreCommit-HBASE-Build/15006/artifact/patchprocess/branch-site/book.html |
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This message was automatically generated.
> correct Document Configurable Bucket Sizes in bucketCache
> ---------------------------------------------------------
>
> Key: HBASE-21460
> URL: https://issues.apache.org/jira/browse/HBASE-21460
> Project: HBase
> Issue Type: Improvement
> Components: documentation
> Reporter: Yechao Chen
> Assignee: Yechao Chen
> Priority: Major
> Attachments: HBASE-21460.v1.patch
>
>
> we use the bucket cache(offheap),found the doc was error,
> the property bucket sizes shoul be "hbase.bucketcache.bucket.sizes" instead of "hfile.block.cache.sizes"
> CacheConfig.java
> /**
> * A comma-delimited array of values for use as bucket sizes.
> */
> public static final String BUCKET_CACHE_BUCKETS_KEY = "hbase.bucketcache.bucket.sizes";
> the doc was:
> ----
>
> HBASE-10641 introduced the ability to configure multiple sizes for the buckets of the BucketCache, in HBase 0.98 and newer. To configurable multiple bucket sizes, configure the new property {color:#ff0000}{{hfile.block.cache.sizes}}{color} (instead of{color:#ff0000} {{hfile.block.cache.size}}{color}) to a comma-separated list of block sizes, ordered from smallest to largest, with no spaces. The goal is to optimize the bucket sizes based on your data access patterns. The following example configures buckets of size 4096 and 8192.
> <property> <name>{color:#ff0000}hfile.block.cache.sizes{color}</name> <value>4096,8192</value> </property>
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