source $(cd -P -- "$(dirname -- "$0")" && pwd -P)/header.sh
hive -e "select 1" > /dev/null 2>&1 &
pid=$!
((timeLeft = 60))
while ((timeLeft > 0)); do
sleep 5
ps -p $pid > /dev/null || break
((timeLeft -= 5))
done
if ps -p $pid > /dev/null
then
kill $pid
sleep 5
# still alive, use kill -9
if ps -p $pid > /dev/null
then
kill -9 $pid
fi
quit "ERROR: Check hive's usability failed, please check the status of your cluster"
fi
请问一下这段shell是什么意思。我执行的时候老是跳转到ERROR这里,是什么原因引起的。我应该怎么排除?