[HADOOP-6319] Capacity reporting incorrect on Solaris

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 0.20.1
• Component/s: fs
• Assignee: Unassigned
• Reporter: Doug Judd
• Created: 18/Oct/09 17:41
• Updated: 29/Jul/14 18:50
• Resolved: 29/Jul/14 18:50

Description

When trying to get Hadoop up and running on Solaris on a ZFS filesystem, I encountered a problem where the capacity reported was zero:

Configured Capacity: 0 (0 KB)

It looks like the problem is with the 'df' output:

$ df -k /data/hadoop
Filesystem 1024-blocks Used Available Capacity Mounted on
/ 0 7186354 20490274 26% /

The following patch (applied to trunk) fixes the problem. Though the real problem is with 'df', I suspect the patch is harmless enough to include?

Index: src/java/org/apache/hadoop/fs/DF.java
===================================================================
— src/java/org/apache/hadoop/fs/DF.java (revision 826471)
+++ src/java/org/apache/hadoop/fs/DF.java (working copy)
@@ -181,7 +181,11 @@
this.percentUsed = Integer.parseInt(tokens.nextToken());
this.mount = tokens.nextToken();
break;

• }
  + }
  +
  + if (this.capacity == 0)
  + this.capacity = this.used + this.available;
  +
  }

public static void main(String[] args) throws Exception {