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Posted to issues@hbase.apache.org by "Yechao Chen (JIRA)" <ji...@apache.org> on 2018/11/09 08:45:00 UTC
[jira] [Updated] (HBASE-21460) correct Document Configurable Bucket
Sizes in bucketCache
[ https://issues.apache.org/jira/browse/HBASE-21460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yechao Chen updated HBASE-21460:
--------------------------------
Attachment: HBASE-21460.v1.patch
Status: Patch Available (was: Open)
> correct Document Configurable Bucket Sizes in bucketCache
> ---------------------------------------------------------
>
> Key: HBASE-21460
> URL: https://issues.apache.org/jira/browse/HBASE-21460
> Project: HBase
> Issue Type: Improvement
> 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 hfile.block.cache.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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