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From "Chen Liang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11627) Block Storage: Cblock cache should register with flusher to upload blocks to containers
Date Mon, 24 Apr 2017 18:47:04 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15981659#comment-15981659
] 

Chen Liang commented on HDFS-11627:
-----------------------------------

Actually, in {{ContainerCacheFlusher}}:

1. in
{code}
DFS_CBLOCK_CACHE_LEVELDB_CACHE_SIZE_MB_DEFAULT) * 1024L * 1024L
{code}
can we make a variable for 1024 * 1024L (I think there is one already)

2. in {checkExistingDirtyLog}
The log level has been changed from INFO to DEBUG, I'm not sure about this change. This information
can be important in general, and should never be spamming in the log.

> Block Storage: Cblock cache should register with flusher to upload blocks to containers
> ---------------------------------------------------------------------------------------
>
>                 Key: HDFS-11627
>                 URL: https://issues.apache.org/jira/browse/HDFS-11627
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>            Reporter: Mukul Kumar Singh
>            Assignee: Mukul Kumar Singh
>         Attachments: HDFS-11627-HDFS-7240.001.patch
>
>
> Cblock cache should register with flusher to upload blocks to containers.
> Currently Container Cache flusher tries to write to the container even when the CblockLocalCache
pipelines are not registered with the flusher. 
> This will result in the Container writes to fail.
> CblockLocalCache should register with the flusher before accepting any blocks for write



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