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Tianyin Xu commented on HDFS-9578: ---------------------------------- wait... so for any bugs fixed in trunk (or Branch 2.7), they still occur in the Branch 2.6? > Incorrect default value (typo) in hdfs-default.xml > -------------------------------------------------- > > Key: HDFS-9578 > URL: https://issues.apache.org/jira/browse/HDFS-9578 > Project: Hadoop HDFS > Issue Type: Bug > Components: documentation > Affects Versions: 2.6.2, 2.6.3 > Reporter: Tianyin Xu > Assignee: Xiaobing Zhou > Priority: Minor > > In {{hdfs-default.xml}}, the default value of > {{dfs.datanode.readahead.bytes}} is wrong. > The value should be 4MB (4 * 1024 * 1024) according to the code, i.e., > {{4194304}}, > while in hdfs-default.xml, it is > {{4193404}}. > ---------------------------- > (src) > {code:title=DFSConfigKeys.java|borderStyle=solid} > 134 public static final String DFS_DATANODE_READAHEAD_BYTES_KEY = > "dfs.datanode.readahead.bytes"; > 135 public static final long DFS_DATANODE_READAHEAD_BYTES_DEFAULT = 4 * > 1024 * 1024; // 4MB > {code} > (hdfs-default.xml) > https://hadoop.apache.org/docs/r2.6.2/hadoop-project-dist/hadoop-hdfs/hdfs-default.xml -- This message was sent by Atlassian JIRA (v6.3.4#6332)