1 files changed, 65 insertions, 0 deletions
diff --git a/bigtop-packages/src/common/ambari/ODPi/1.0/hooks/before-START/files/checkForFormat.sh b/bigtop-packages/src/common/ambari/ODPi/1.0/hooks/before-START/files/checkForFormat.sh
new file mode 100755
index 00000000..68aa96da
--- /dev/null
+++ b/bigtop-packages/src/common/ambari/ODPi/1.0/hooks/before-START/files/checkForFormat.sh
@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+#
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+#
+
+export hdfs_user=$1
+shift
+export conf_dir=$1
+shift
+export bin_dir=$1
+shift
+export mark_dir=$1
+shift
+export name_dirs=$*
+
+export EXIT_CODE=0
+export command="namenode -format"
+export list_of_non_empty_dirs=""
+
+mark_file=/var/run/hadoop/hdfs/namenode-formatted
+if [[ -f ${mark_file} ]] ; then
+  /var/lib/ambari-agent/ambari-sudo.sh rm -f ${mark_file}
+  /var/lib/ambari-agent/ambari-sudo.sh mkdir -p ${mark_dir}
+fi
+
+if [[ ! -d $mark_dir ]] ; then
+  for dir in `echo $name_dirs | tr ',' ' '` ; do
+    echo "NameNode Dirname = $dir"
+    cmd="ls $dir | wc -l  | grep -q ^0$"
+    eval $cmd
+    if [[ $? -ne 0 ]] ; then
+      (( EXIT_CODE = $EXIT_CODE + 1 ))
+      list_of_non_empty_dirs="$list_of_non_empty_dirs $dir"
+    fi
+  done
+
+  if [[ $EXIT_CODE == 0 ]] ; then
+    /var/lib/ambari-agent/ambari-sudo.sh su ${hdfs_user} - -s /bin/bash -c "export PATH=$PATH:$bin_dir ; yes Y | hdfs --config ${conf_dir} ${command}"
+    (( EXIT_CODE = $EXIT_CODE | $? ))
+  else
+    echo "ERROR: Namenode directory(s) is non empty. Will not format the namenode. List of non-empty namenode dirs ${list_of_non_empty_dirs}"
+  fi
+else
+  echo "${mark_dir} exists. Namenode DFS already formatted"
+fi
+
+exit $EXIT_CODE
+