Made scripts print info about failing commands #220
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I tried to run Accumulo with JDK 11 using Uno and it failed. The reason it failed is because the start-yarn.sh script was failing because of HADOOP-15775. It took me a while to find where the Uno scripts were failing because when the yarn script failed, the uno script just stopped silently.
This change makes the scripts print something like the following when there is a failure.
cat uno/logs/setup/hadoop.out Formatting using clusterid: CID-5e5b228b-78e0-4a45-ae29-da9aed51288b Starting namenodes on [localhost] Starting datanodes Starting secondary namenodes [localhost] Starting resourcemanager Starting nodemanagers [ERROR] Error occurred at uno/bin/impl/run/hadoop.sh:29 command: "$HADOOP_HOME"/sbin/start-yarn.sh