SteNicholas opened a new pull request, #2545:
URL: https://github.com/apache/celeborn/pull/2545
### What changes were proposed in this pull request?
`MRAppMasterWithCeleborn` gets `FileSystem` via `mapreduce.job.dir` for HDFS
federation.
### Why are the changes needed?
`MRAppMasterWithCeleborn` should get `FileSystem` via `mapreduce.job.dir`
for HDFS federation. Otherwise, the Celeborn conf path of `celeborn.xml` is
wrong for the following example configuration:
```
<property>
<name>fs.defaultFS</name>
<value>viewfs://bigdata-cluster</value>
</property>
<property>
<name>fs.viewfs.mounttable.bigdata-cluster.link./application</name>
<value>hdfs://bigdata-proxy-ns/application</value>
</property>
```
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Cluster test.
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