[HADOOP-9069] FileSystem.get leads to stack overflow if default FS is not configured with a scheme

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Duplicate
• Affects Version/s: 0.23.3, 2.0.1-alpha
• Component/s: fs
• Assignee: Andras Bokor
• Reporter: Jason Darrell Lowe
• Created: 20/Nov/12 17:15
• Updated: 02/Aug/18 13:49
• Resolved: 02/Aug/18 13:49

Description

If fs.defaultFS is configured without a scheme, e.g.: "/", then FileSystem.get will infinitely recurse and lead to a stack overflow. An example stacktrace from 0.23:

java.lang.StackOverflowError
        at java.util.AbstractCollection.<init>(AbstractCollection.java:66)
        at java.util.AbstractList.<init>(AbstractList.java:76)
        at java.util.ArrayList.<init>(ArrayList.java:128)
        at java.util.ArrayList.<init>(ArrayList.java:139)
        at org.apache.hadoop.conf.Configuration.handleDeprecation(Configuration.java:430)
        at org.apache.hadoop.conf.Configuration.get(Configuration.java:852)
        at org.apache.hadoop.fs.FileSystem.getDefaultUri(FileSystem.java:171)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:163)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:290)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:163)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:290)
        at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:163)
...

Issue Links

• duplicates: HADOOP-13792 Stackoverflow for schemeless defaultFS with trailing slash