Aaron T. Myers created HDFS-4592:
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Summary: Default values for access time precision are out of sync
between hdfs-default.xml and the code
Key: HDFS-4592
URL: https://issues.apache.org/jira/browse/HDFS-4592
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 2.0.4-alpha
Reporter: Aaron T. Myers
Assignee: Aaron T. Myers
In {{hdfs-default.xml}} we have:
{code}
<property>
<name>dfs.namenode.accesstime.precision</name>
<value>3600000</value>
<description>The access time for HDFS file is precise upto this value.
The default value is 1 hour. Setting a value of 0 disables
access times for HDFS.
</description>
</property>
{code}
But in {{FSNamesystem}} we have:
{code}
this.accessTimePrecision = conf.getLong(DFS_NAMENODE_ACCESSTIME_PRECISION_KEY,
0);
{code}
We properly define {{DFS_NAMENODE_ACCESSTIME_PRECISION_DEFAULT}} in
DFSConfigKeys.java, but it's not actually referenced anywhere in the code.
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