FSImage should specify which dirs are missing when refusing to come up ----------------------------------------------------------------------
Key: HDFS-979 URL: https://issues.apache.org/jira/browse/HDFS-979 Project: Hadoop HDFS Issue Type: Improvement Components: name-node Affects Versions: 0.22.0 Reporter: Steve Loughran Priority: Minor When {{FSImage}} can't come up as either it has no data or edit dirs, it tells me this {code} java.io.IOException: All specified directories are not accessible or do not exist. {code} What it doesn't do is say which of the two attributes are missing. This would be beneficial to anyone trying to track down the problem. Also, I don't think the message is correct. It's bailing out because dataDirs.size() == 0 || editsDirs.size() == 0 , because a list is empty -not because the dirs aren't there, as there hasn't been any validation yet. More useful would be # Explicit mention of which attributes are null # Declare that this is because they are not in the config -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.