[HDDS-11526] hdds.datanode.metadata.rocksdb.cache.size default value description is wrong

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Assignee: Sarveksha Yeshavantha Raju
• Reporter: Wei-Chiu Chuang
• Created: 03/Oct/24 22:21
• Updated: 08/Oct/24 07:57
• Resolved: 08/Oct/24 07:57

Description

In ozone-default.xml, hdds.datanode.metadata.rocksdb.cache.size has the following default value description:

  <property>
    <name>hdds.datanode.metadata.rocksdb.cache.size</name>
    <value>64MB</value>
    <tag>OZONE, DATANODE, MANAGEMENT</tag>
    <description>
        Size of the block metadata cache shared among RocksDB instances on each
        datanode. All containers on a datanode will share this cache.
    </description>
  </property>

The actual default value used in the code is 1GB. https://github.com/apache/ozone/blob/master/hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/OzoneConfigKeys.java#L453