LeonGao91 commented on a change in pull request #2288:
URL: https://github.com/apache/hadoop/pull/2288#discussion_r490657364
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File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsVolumeImpl.java
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@@ -134,6 +134,9 @@
private final FileIoProvider fileIoProvider;
private final DataNodeVolumeMetrics metrics;
private URI baseURI;
+ private boolean enableSameDiskArchival;
+ private final String device;
Review comment:
The "device" here is the string value of the filesystem mount point. I
wanted to use it to keep track of which two volumes are on the same mount (thus
the same disk). Datanode can use the existing DF#getMount() to detect it
automatically.
I can probably change the name to "mount" to make it more clear.
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