[GitHub] mikewalch commented on a change in pull request #198: Added Accumulo and Hadoop compat checks

[GitBox <gi...@apache.org>]

mikewalch commented on a change in pull request #198: Added Accumulo and Hadoop compat checks
URL: https://github.com/apache/fluo-uno/pull/198#discussion_r219557565
 
 

 ##########
 File path: conf/uno.conf
 ##########
 @@ -91,6 +91,27 @@ if [[ -n "$FLUO_YARN_REPO" ]]; then
   export FLUO_YARN_TARBALL=fluo-yarn-$FLUO_YARN_VERSION-bin.tar.gz
 fi
 
+# Version compatability checks
+# ----------------------------
+# Apache built Accumuo 1.x only works with Hadoop 2.x.  Apache built Accumulo
+# 2.x only works with Hadoop 3.x.  However if building Accumulo, these
+# constraints may not apply.  The following sanity checks fail fast when
+# versions are incompatible.  If the checks cause a problem, comment them out
+# and consider submitting an issue or PR.
+#
+
+if [[ -z "$ACCUMULO_REPO" ]]; then
+  if [[ "${ACCUMULO_VERSION}" = 1.* && ! "${HADOOP_VERSION}" = 2.* ]]; then
+    echo "ERROR from uno.conf : When using Accumuo 1.x, expect Hadoop 2.x not $HADOOP_VERSION"
 
 Review comment:
   should be `Accumulo`

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