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  1. Hadoop Common
  2. HADOOP-745

NameNode throws FileNotFoundException: Parent path does not exist on startup

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.8.0
    • Fix Version/s: 0.10.0
    • Component/s: None
    • Labels:
      None

      Description

      (with credit to Christian)

      The following exception is reported by the namenode upon startup:

      2006-11-22 12:18:17,713 ERROR org.apache.hadoop.dfs.NameNode:
      java.io.FileNotFoundException: Parent path does not exist: /foo/bar
      at org.apache.hadoop.dfs.FSDirectory$INode.addNode(FSDirectory.java:186)
      at org.apache.hadoop.dfs.FSDirectory.unprotectedMkdir(FSDirectory.java:731)
      at org.apache.hadoop.dfs.FSEditLog.loadFSEdits(FSEditLog.java:254)
      at org.apache.hadoop.dfs.FSImage.loadFSImage(FSImage.java:191)
      at org.apache.hadoop.dfs.FSDirectory.loadFSImage(FSDirectory.java:321)
      at org.apache.hadoop.dfs.FSNamesystem.<init>(FSNamesystem.java:230)
      at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:145)
      at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:137)
      at org.apache.hadoop.dfs.NameNode.main(NameNode.java:585)

      Perhaps the 'mkdirs' section

      INode inserted = unprotectedMkdir(cur);
      if (inserted != null) {
      NameNode.stateChangeLog.debug("DIR* FSDirectory.mkdirs: "
      +"created directory "+cur );
      fsImage.getEditLog().logMkDir( inserted );

      needs to be synchronized or the unprotectedMkdir method needs to be changed
      to allow creating missing parent directories.

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            • Assignee:
              dhruba dhruba borthakur
              Reporter:
              nidaley Nigel Daley
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              Dates

              • Created:
                Updated:
                Resolved: