#!/bin/ksh

ppids=() ---> Main array for process ids.
fppids=() ---> array to capture failed process ids.
pcnt=0 ---> success count
fpcnt=0 ---> fail count

echo ""
start_time=`date '+%Y/%m/%d:%H:%M:%S'`


for file in `cat ${CONFIG_DIR}/abc.txt`
do
        table_name=`echo ${file}`

        nohup ksh ${BIN_DIR}/inner_script.ksh ${table_name}>${LOG_DIR}/${table_name}_inner_script_${curr_date}.log &
        ppids+=($!)
        echo "Process ID:       $!."
        echo ""
        echo "Log File for ${table_name} is: ${LOG_DIR}/${table_name}_inner_script_${curr_date}.log"
done

echo ""
echo ""
echo "Starting Checking the process completion of all tables:"

export tot_table_cnt=`wc -l ${CONFIG_DIR}/abc.txt|awk '{ print $1 }'`
echo ""
echo "Total Number of tables: ${tot_table_cnt}."

while [ ${pcnt} -lt ${tot_table_cnt} ]; do
ptmp=()
   for p in ${ppids[@]}
   do
        if [[ ! -d /proc/${p} ]]; then
                wait ${p}
                sts=$?
                if [[ $sts -eq 0 || $sts -eq 127 ]]; then
                        echo "Process completed with Process ID ${p}; exit code: $sts; at `date '+%Y/%m/%d:%H:%M:%S'`"
                        pcnt=`expr $pcnt + 1`
                else
                        echo "Process failed for Process ID: ${p}"
                        index=`echo ${ppids[@]/$p//}|cut -d/ -f1 |wc -w |tr -d ' '`
                        unset ppids[$index]
                        pcnt=`expr $pcnt + 1`
                        fpcnt=`expr $fpcnt + 1`
                        fppids+=(${p})
                fi

        else
                zombie_lst=$(ps axo pid=,stat= | awk '$2~/^Z/ { print $1 }'|grep "$p")
                if [[ -z ${zombie_lst} ]]; then
                         ptmp+=(${p})
                else
                        wait ${p}
                        sts=$?
                        if [[ $sts -eq 0 || $sts -eq 127 ]]; then
                                echo "Process completed with Process ID ${p}; exit code: $sts; at `date '+%Y/%m/%d:%H:%M:%S'`"
                                pcnt=`expr $pcnt + 1`
                        elif [[ $sts -ne 0 || $sts -ne 127 ]]; then
                                echo "Process failed for Process ID: ${p}"
                                index=`echo ${ppids[@]/$p//}|cut -d/ -f1 |wc -w |tr -d ' '`
                                unset ppids[$index]
                                pcnt=`expr $pcnt + 1`
                                fpcnt=`expr $fpcnt + 1`
                                fppids+=(${p})
                        else
                                kill -TERM ${p}
                                index=`echo ${ppids[@]/$p//}|cut -d/ -f1 |wc -w |tr -d ' '`
                                unset ppids[$index]
                                pcnt=`expr $pcnt + 1`
                        fi
                fi

        fi

   done
   ppids=(${ptmp[@]})

done


if [[ $pcnt -eq ${tot_table_cnt} ]]; then
        echo "process for all tables is complete for ${curr_date}."

        if [[ $fpcnt -eq 0 ]]; then
                echo ""
                echo "process is successfully completed for all Tables."
                echo "DONE file is touched."
                touch ${TEMP_DIR}/inner_script_completion.done
                echo ""
        else
                echo ""
                echo "process failed for ${fpcnt} tables."
                echo "Failed Process IDs are ${fppids[@]}."
                echo "DONE File is not touched in ${TEMP_DIR} path. Need to verify or re-run the process manually."
        fi
fi

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#!/bin/ksh
nohup hive -S -e "do something;" &
pid=$!
wait $pid
status=$?
if [[ $status -eq 0 ]]; then
   echo "Success"
   exit 0
else
   echo "failure"
   exit 1
fi