Check exit code of zk format

Author: sbernauer

rust/operator/src/container.rs

@@ -546,7 +546,19 @@ impl ContainerConfig {
  r###"
  echo "Attempt to format ZooKeeper..."
  if [[ "0" -eq "$(echo $POD_NAME | sed -e 's/.*-//')" ]] ; then
- {hadoop_home}/bin/hdfs zkfc -formatZK -nonInteractive || true
+ set +e
+ {hadoop_home}/bin/hdfs zkfc -formatZK -nonInteractive
+ EXITCODE=$?
+ set -e
+ if [[ $EXITCODE -eq 0 ]]; then
+ echo "Successfully formatted"
+ elif [[ $EXITCODE -eq 2 ]]; then
+ echo "ZNode already existed, did nothing"
+ else
+ echo "Zookeeper format failed with exit code $EXITCODE"
+ exit $EXITCODE
+ fi
+
  else
  echo "ZooKeeper already formatted!"
  fi