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Posted to hdfs-dev@hadoop.apache.org by "jinglong.liujl (JIRA)" <ji...@apache.org> on 2010/06/25 11:01:49 UTC

[jira] Created: (HDFS-1268) Extract blockInvalidateLimit as a seperated configuration

Extract blockInvalidateLimit as a seperated configuration
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                 Key: HDFS-1268
                 URL: https://issues.apache.org/jira/browse/HDFS-1268
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: name-node
    Affects Versions: 0.22.0
            Reporter: jinglong.liujl


      If there're many file piled up in recentInvalidateSets, only Math.max(blockInvalidateLimit, 
20*(int)(heartbeatInterval/1000)) invalid blocks can be carried in a heartbeat.(By default, It's 100). In high write stress, it'll cause process of invalidate blocks removing can not catch up with  speed of writing. 
    We extract blockInvalidateLimit  to a sperate config parameter that user can make the right configure for your cluster. 

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