Aljoscha Krettek created FLINK-7396:

             Summary: Don't put multiple directories in HADOOP_CONF_DIR in
                 Key: FLINK-7396
             Project: Flink
          Issue Type: Bug
          Components: Startup Shell Scripts
    Affects Versions: 1.3.2, 1.4.0
            Reporter: Aljoscha Krettek
             Fix For: 1.4.0, 1.3.3

In we do this:
# Check if deprecated HADOOP_HOME is set.
if [ -n "$HADOOP_HOME" ]; then
    # HADOOP_HOME is set. Check if its a Hadoop 1.x or 2.x HADOOP_HOME path
    if [ -d "$HADOOP_HOME/conf" ]; then
        # its a Hadoop 1.x
    if [ -d "$HADOOP_HOME/etc/hadoop" ]; then
        # Its Hadoop 2.2+
while our {{HadoopFileSystem}} actually only treats this paths as a single 
path, not a colon-separated path:

I also think that other tools don't assume multiple paths in there and at least 
one user ran into the problem on their setup.

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