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HDFS-10724. Document caller context config keys. (Contributed by Mingliang Liu) 

(cherry picked from commit 4bcbef39f7)
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Mingliang Liu 2016-08-15 20:20:33 -07:00
parent 1a8280edde
commit 6471ec31bc
1 changed files with 29 additions and 0 deletions
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29
hadoop-common-project/hadoop-common/src/main/resources/core-default.xml
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@ -2181,4 +2181,33 @@
<description>The class names of the Span Receivers to use for Hadoop.
</description>
</property>
<property>
<name>hadoop.caller.context.enabled</name>
<value>false</value>
<description>When the feature is enabled, additional fields are written into
name-node audit log records for auditing coarse granularity operations.
</description>
</property>
<property>
<name>hadoop.caller.context.max.size</name>
<value>128</value>
<description>The maximum bytes a caller context string can have. If the
passed caller context is longer than this maximum bytes, client will
truncate it before sending to server. Note that the server may have a
different maximum size, and will truncate the caller context to the
maximum size it allows.
</description>
</property>
<property>
<name>hadoop.caller.context.signature.max.size</name>
<value>40</value>
<description>
The caller's signature (optional) is for offline validation. If the
signature exceeds the maximum allowed bytes in server, the caller context
will be abandoned, in which case the caller context will not be recorded
in audit logs.
</description>
</property>
</configuration>