ืึธืืขืจ ืึท ืืืกื ืคืื ืืขืืืขื ืื ืืขืืจืืกืึธืืึธืื.
ืึทืืฅ ื ืืึท ืืื ืืื ืคืืจืืขืกื ืึทืื.
ืขืคึผืืืจืึทืคืก.
ืืืกืืึธืืื ื ืคืื ืื ืคึผืจืึธืืืขื
ืขืก ืืื ื ืืืืืง ืฆื ืคึผืขืจืึดืึธืืืฉ ืืึทืื ืืึธืืื ืื ืืืฆืืืงืข PostgreSQL ืืึธื ืืขืงืข ืคึฟืื ืื AWS ืืืึธืืงื ืฆื ืื ืืึธืงืึทืืข Linux ืืึทืืขืืึธืก. ื ืืฉื ืืื ืคืึทืงืืืฉืขืจ ืฆืืื, ื ืึธืจ, ืืึธืื ืืืจ, ืืื ืึท ืงืืืื ืขืจ ืคืึทืจืืึทืืืื ื.
ืื ืืจืืคืงืืคืืข ืฆืืึทื ืคืื ืงืืึธืฅ ืืขืงืข ืืขืจืืืึทื ืืืงื ืืื 5 ืืื ืื.
ืื ืงืืึธืฅ ืืขืงืข, ืืื AWS, ืืื ืจืึธืืืืืืื ืืขืืขืจ ืฉืขื.
ืืขืืืืื ื ืืืฉืืจืื
ืฆื ืฆืืคึฟืขืืืงืขืจ ืื ืงืืึธืฅ ืืขืงืข ืฆื ืืขืจ ืืึทืืขืืึธืก, ืึท ืืึทืฉ ืฉืจืืคื ืืื ืืขื ืืฆื ืืืึธืก ืจืืคื ืื AWS API "'.
ืคึผืึทืจืึทืืขืืขืจืก:
- --db-instance-identifier: ืืืึทืฉืคึผืื ื ืึธืืขื ืืื AWS;
- --ืืึธื-ืืขืงืข-ื ืึธืืขื: ื ืึธืืขื ืคืื ืื ืืืฆื ืืืฉืขื ืขืจืืืืึทื ืงืืึธืฅ ืืขืงืข
- --max-item: ืื ืืึทื ืฅ ื ืืืขืจ ืคืื ืืืื ืืืืืขืงืขืจื ืืื ืืขืจ ืจืขืืืืืึทื ืคืื ืื ืืึทืคึฟืขื.ืื ืืจืืืก ืคืื ืื ืืึทืื ืืึธืืืื ืืขืงืข.
- --ืกืืึทืจืืื ื-ืืึธืงืขื: ืกืืึทืจืืื ื ืืึธืงืขื ืกืืืขื
ืืื ืืขื ืืึทืืื ืืขืจ ืคืึทื, ืื ืึทืจืืขื ืคืื ืืึทืื ืืึธืืืื ื ืืึธืืก ืืื ืืืืคืืขืฉืืื ืขื ืืื ืื ืืืืฃ ืคืื ืึทืจืืขื
ืืึธ, ืืื ืคืฉืื - ืึท ืืฉืืงืึทืืืข ืึทืจืืขื ืคึฟืึทืจ ืืจืืื ืื ื ืืื ืคืึทืจืฉืืืื ืงืืึทื ืืขืฉืึทืก ืึทืจืืขื ืฉืขื.
ืืื ื ืขื ืื ืืขืจ ืคืจืืืืขื ืืื ืฉืืื ืืขืืืืื ืืขืืืืจื ืืืื ืจืืืื. ืึธืืขืจ ืึท ืฉื ืขื ืืืื ืืื ื ืืฉื ืคึฟืึธืจืฉืืึธืื ืกืึทืืืฉืึทื ื, ืืื ืขืก ืืื ืงืืื ืืึทืืื ืืขืจ ืคืึทืจืืึทื ื ืฆื ืืืื ืืื ืืขืจ ืืืฃ. ืืื ืงืืื ืคืึทื, ืขืก ืืื ืึท ืืื ืืืขืจืงืึทืื.
ืคืึธืจืืึทืืืืืืฉืึทื ืคืื ืื ืึทืจืืขื
ืื ืืขืฆื ืงืืึธืฅ ืืขืงืข ืืื ืึท ืกืืื ืคืื ืฉืืจืืช ืคืื ืืืึทืืขืืืืืง ืืขื ื. ืืจืึทืคืืงืื, ืื ืงืืึธืฅ ืืขืงืข ืงืขื ืขื ืืืื ืจืขืคึผืจืืืขื ืืื ืืื ืืึธืก:
ืขืก ืืขืจืืื ื ืืืจ ืฉืืื ืขืคืขืก? ืืืืก ืืื ืืื "ืืขืืจืืก"? ืืื ืืึธ ืก ืืืึธืก.
ืืืื ืืืจ ืคืึธืจืฉืืขืื ืื ืืขืืืขื ืึธืคึผืฆืืขืก ืืืึธืก ืฉืืืืขื ืืืขื ืืึธืืืื ื ืื ืืืืึทืืขืจ ืืขืงืข ืืจืึทืคืืงืื (ืคึฟืึทืจ ืคึผืึทืฉืืขืก, ืืื ืืขื ืคืึทื, ืืึธืื ืื ืฉืืจืืช ืืึธืื ืื ืืขืืืข ืืขื ื), ืืืจ ืืึทืงืืืขื ื ืึธืจืืึทื ืืขืืจืืก ืคืืืืขืจื:
1) ืืขืจ ืืขืงืข ืืื ืืึทืื ืืึธืืืื ืืื ืืืื ืื ืืืืขืจืืึทื ื ืืื ืืื ืืขืฆื. ืื ืคึผืืึทืืข ืืจืืืก ืืื ืืจืขืกืขืจ ืืื ืื ืืขืฆื ืืขืงืข ืืจืืืก:
2) ืืขืจ ืืขืงืข ืืื ืึท ืงืึทื ืืื ืืืืืฉืึทื. ืื ืคึผืืึทืืข ืืจืืืก ืืื ืงืืขื ืขืจืขืจ ืืื ืื ืืขืฆื ืืขืงืข ืืจืืืก:
3) ืืขืจ ืืขืงืข ืืื ืึท ืงืึทื ืืื ืืืืืฉืึทื ืคืื ืื ืคืจืืขืจืืืงืข ืืขืงืข ืืื ืืื ืึท ืงืึทื ืืื ืืืืืฉืึทื. ืื ืคึผืืึทืืข ืืจืืืก ืืื ืืืืื ืืงืขืจ ืืื ืื ืืจืืืก ืคืื ืื ืจืขืฉื ืคืื ืื ืืขืฆื ืืขืงืข:
4) ืื ืืขืงืข ืืื ืึท ืงืึทื ืืื ืืืืืฉืึทื ืคืื ืื ืคืจืืขืจืืืงืข ืืขืงืข ืืื ืืื ืืขืฆื. ืื ืคึผืืึทืืข ืืจืืืก ืืื ืืจืขืกืขืจ ืืื ืื ืืจืืืก ืคืื ืื ืจืขืฉื ืคืื ืื ืืขืฆื ืืขืงืข:
ืื ืึทืจืืขื ืืื ืฆื ืึทืกืขืืืึทื ืึท ืืจืึธืืขืง ืึธืืขืจ ืฉืคึผืืื ืืขืืจืืก ืืืืฃ ืึท ื ืืึทืข ืืืจืื.
ืคึผืจืึธืืืขืืก ืืืึธืก ืฉืืืืขื ืืื ืื ืืืืฃ ืคืื ืกืึทืืืืื ื ืื ืคึผืจืึธืืืขื
1) ืงืืื ืึท ืฉืืจืืงื ืคืื 2 ืคึผืึธืจืฉืึทื ื
ืืื ืึทืืืขืืืื, ืขืก ืืขื ืขื ืงืืื ืืึทืืื ืืขืจ ืคึผืจืึธืืืขืืก. ื ื ืึธืจืืึทื ืึทืจืืขื ืคืื ืื ืขืจืฉื ืคึผืจืึธืืจืึทืืืื ื ืงืืจืก.
ืึธืคึผืืืืึทื ืกืขืจืืืื ื ืืจืืืก
ืืืขืจ ืืึธืก ืืื ืึท ืืืกื ืืขืจ ืืฉืืงืึทืืืข.
ืฆืื ืืึทืืืืขืจื, ืขืก ืืื ืงืืื ืืืขื ืฆื ื ืืฆื ืึท ืคืึธืืึธ ื ืึธื ืื ืึธื ืืืื ืืฉืึทื ื ืคืืจืืข:
ืืื ืืืจ ืฉืืื ืืืืกื ืื ืึธืคึผืฆืืข ---starting-token ืืื ืืขื ืืฆื ืฆื ืกืคึผืขืฆืืคืืฆืืจื ืืื ืฆื ืึธื ืืืืื ืคึผืึทืืืฉืึทื ืืืืื ื. ืืขืจ ืึธืคึผืฆืืข ื ืขืื ืกืืจืื ื ืืืึทืืืขืก ืืืึธืก ืืืึธืื ืืืื ืขื ืึทื ืืืื ืืืจ ืคึผืจืืืืจื ืฆื ืืืืื ืึท ืคืึธืืึธ ืืืขืจื ืืื ืคืจืึธื ื ืคืื ืื ืืืืึทืืขืจ ืืึธืงืขื ืฉืืจืืงื, ืื ืึธืคึผืฆืืข ืืืขื ื ืืฉื ืืืื ืืึทืืจืึทืื ืืื ืึท ืคืึธืืึธ.
ืืื ืึทืืื, ืืืจ ืืึธืื ืฆื ืืืืขื ืขื ืืื ืฉืืืงืขืจ ืคึผืึธืจืฉืึทื ื.
ืืืื ืืืจ ืืืืขื ืขื ืืื ืืจืืืก ืคึผืึธืจืฉืึทื ื, ืื ื ืืืขืจ ืคืื ืจืืืื ืื ืืืขื ืืืื ืืื ืืืึทื, ืึธืืขืจ ืืขืจ ืืึทื ื ืืืขื ืืืื ืืึทืงืกืืืื.
ืืืื ืืืจ ืืืืขื ืขื ืืื ืงืืืื ืคึผืึธืจืฉืึทื ื, ืืืืฃ ืื ืคืึทืจืงืขืจื, ืื ื ืืืขืจ ืคืื ืจืืืื ืื ืืืขื ืืืื ืืึทืงืกืืืื, ืึธืืขืจ ืืขืจ ืืึทื ื ืืืขื ืืืื ืืื ืืืึทื.
ืืขืจืืืขืจ, ืืื ืกืืจ ืฆื ืจืขืืืฆืืจื ืคืึทืจืงืขืจ ืืื ืคึฟืึทืจ ืื ืงืืืืขืืืืง ืฉืืื ืงืืื ืคืื ืื ืืืืืื ื, ืืื ืืขืืื ืฆื ืงืืืขื ืืื ืึท ืกืึธืจื ืคืื ืืืืืื ื, ืืืึธืก, ืืืืืขืจ, ืงืืงื ืึท ืืืกื ืืื ืึท ืงืจืึทืืฉ.
ืฆื ืืืืืกืืจืืจื, ืืึธืืืจ ืืึทืืจืึทืืื ืืขื ืคึผืจืึธืฆืขืก ืคืื ืืึทืื ืืึธืืืื ื ืึท ืงืืึธืฅ ืืขืงืข ืืื 2 ืืืืขืจ ืกืืืคึผืืึทืคืืื ืืืขืจืกืืขืก. ืื ื ืืืขืจ ืคืื ืจืืืื ืื ืืื ืืืืืข ืงืึทืกืขืก ืืขืคึผืขื ืืก ืืืืฃ ืื ืืืง ืืจืืืก.
1) ืืึทืกืข ืืื ืงืืืื ืคึผืึธืจืฉืึทื ื:
2) ืืึทืกืข ืืื ืืจืืืก ืคึผืึธืจืฉืึทื ื:
ืืื ืืขืืืืื ืืืขื, ืื ืึธืคึผืืืืึทื ืืืืืื ื ืืื ืืื ืื ืืืื.
ืืขืจ ืืืง ืืจืืืก ืืื ืืื ืืืึทื, ืึธืืขืจ ืืื ืืขื ืคึผืจืึธืฆืขืก ืคืื ืืืืขื ืขื, ืื ืืจืืืก ืงืขื ืขื ืืืื ืืขืืืืงืกื ืฆื ืจืขืืืฆืืจื ืื ื ืืืขืจ ืคืื ืจืืืื ืื.
ืขืก ืืึธื ืืืื ืื ืืขืืืืื ืึทื ืื ืคึผืจืึธืืืขื ืคืื ืกืขืืขืงืืื ื ืื ืึธืคึผืืืืึทื ืืจืืืก ืคืื ืื ืืืืขื ืขื ืืืง ืืื ื ืึธื ื ืืฉื ืืึธืจ ืกืึทืืืื ืืื ืจืืงืืืืืขืจื ืืืคึผืขืจ ืืขืจื ืขื ืืื ืึทื ืึทืืืกืืก. ืืคึฟืฉืจ ืึท ืืืกื ืฉืคึผืขืืขืจ.
ืึทืืืขืืืื ืข ืืึทืฉืจืืึทืืื ื ืคืื ืื ืืืคึผืืึทืืขื ืืืืฉืึทื
ืืขืืืืื ื ืืื ืกื ืืืฉื
CREATE TABLE endpoint
(
id SERIAL ,
host text
);
TABLE database
(
id SERIAL ,
โฆ
last_aws_log_time text ,
last_aws_nexttoken text ,
aws_max_item_size integer
);
last_aws_log_time โ ะฒัะตะผะตะฝะฝะฐั ะผะตัะบะฐ ะฟะพัะปะตะดะฝะตะณะพ ะทะฐะณััะถะตะฝะฝะพะณะพ ะปะพะณ-ัะฐะนะปะฐ ะฒ ัะพัะผะฐัะต YYYY-MM-DD-HH24.
last_aws_nexttoken โ ัะตะบััะพะฒะฐั ะผะตัะบะฐ ะฟะพัะปะตะดะฝะตะน ะทะฐะณััะถะตะฝะฝะพะน ะฟะพััะธะธ.
aws_max_item_size- ัะผะฟะธัะธัะตัะบะธะผ ะฟััะตะผ, ะฟะพะดะพะฑัะฐะฝะฝัะน ะฝะฐัะฐะปัะฝัะน ัะฐะทะผะตั ะฟะพััะธะธ.
ืืึทื ืฅ ืืขืงืกื ืคืื ืื ืฉืจืืคื
download_aws_piece.sh
#!/bin/bash
#########################################################
# download_aws_piece.sh
# downloan piece of log from AWS
# version HABR
let min_item_size=1024
let max_item_size=1048576
let growth_factor=3
let growth_counter=1
let growth_counter_max=3
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh:''STARTED'
AWS_LOG_TIME=$1
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh:AWS_LOG_TIME='$AWS_LOG_TIME
database_id=$2
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh:database_id='$database_id
RESULT_FILE=$3
endpoint=`psql -h MONITOR_ENDPOINT.rds.amazonaws.com -U USER -d MONITOR_DATABASE_DATABASE -A -t -c "select e.host from endpoint e join database d on e.id = d.endpoint_id where d.id = $database_id "`
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh:endpoint='$endpoint
db_instance=`echo $endpoint | awk -F"." '{print toupper($1)}'`
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh:db_instance='$db_instance
LOG_FILE=$RESULT_FILE'.tmp_log'
TMP_FILE=$LOG_FILE'.tmp'
TMP_MIDDLE=$LOG_FILE'.tmp_mid'
TMP_MIDDLE2=$LOG_FILE'.tmp_mid2'
current_aws_log_time=`psql -h MONITOR_ENDPOINT.rds.amazonaws.com -U USER -d MONITOR_DATABASE -A -t -c "select last_aws_log_time from database where id = $database_id "`
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh:current_aws_log_time='$current_aws_log_time
if [[ $current_aws_log_time != $AWS_LOG_TIME ]];
then
is_new_log='1'
if ! psql -h MONITOR_ENDPOINT.rds.amazonaws.com -U USER -d MONITOR_DATABASE -v ON_ERROR_STOP=1 -A -t -q -c "update database set last_aws_log_time = '$AWS_LOG_TIME' where id = $database_id "
then
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: FATAL_ERROR - update database set last_aws_log_time .'
exit 1
fi
else
is_new_log='0'
fi
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh:is_new_log='$is_new_log
let last_aws_max_item_size=`psql -h MONITOR_ENDPOINT.rds.amazonaws.com -U USER -d MONITOR_DATABASE -A -t -c "select aws_max_item_size from database where id = $database_id "`
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: last_aws_max_item_size='$last_aws_max_item_size
let count=1
if [[ $is_new_log == '1' ]];
then
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: START DOWNLOADING OF NEW AWS LOG'
if ! aws rds download-db-log-file-portion
--max-items $last_aws_max_item_size
--region REGION
--db-instance-identifier $db_instance
--log-file-name error/postgresql.log.$AWS_LOG_TIME > $LOG_FILE
then
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: FATAL_ERROR - Could not get log from AWS .'
exit 2
fi
else
next_token=`psql -h MONITOR_ENDPOINT.rds.amazonaws.com -U USER -d MONITOR_DATABASE -v ON_ERROR_STOP=1 -A -t -c "select last_aws_nexttoken from database where id = $database_id "`
if [[ $next_token == '' ]];
then
next_token='0'
fi
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: CONTINUE DOWNLOADING OF AWS LOG'
if ! aws rds download-db-log-file-portion
--max-items $last_aws_max_item_size
--starting-token $next_token
--region REGION
--db-instance-identifier $db_instance
--log-file-name error/postgresql.log.$AWS_LOG_TIME > $LOG_FILE
then
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: FATAL_ERROR - Could not get log from AWS .'
exit 3
fi
line_count=`cat $LOG_FILE | wc -l`
let lines=$line_count-1
tail -$lines $LOG_FILE > $TMP_MIDDLE
mv -f $TMP_MIDDLE $LOG_FILE
fi
next_token_str=`cat $LOG_FILE | grep NEXTTOKEN`
next_token=`echo $next_token_str | awk -F" " '{ print $2}' `
grep -v NEXTTOKEN $LOG_FILE > $TMP_FILE
if [[ $next_token == '' ]];
then
cp $TMP_FILE $RESULT_FILE
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: NEXTTOKEN NOT FOUND - FINISH '
rm $LOG_FILE
rm $TMP_FILE
rm $TMP_MIDDLE
rm $TMP_MIDDLE2
exit 0
else
psql -h MONITOR_ENDPOINT.rds.amazonaws.com -U USER -d MONITOR_DATABASE -v ON_ERROR_STOP=1 -A -t -q -c "update database set last_aws_nexttoken = '$next_token' where id = $database_id "
fi
first_str=`tail -1 $TMP_FILE`
line_count=`cat $TMP_FILE | wc -l`
let lines=$line_count-1
head -$lines $TMP_FILE > $RESULT_FILE
###############################################
# MAIN CIRCLE
let count=2
while [[ $next_token != '' ]];
do
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: count='$count
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: START DOWNLOADING OF AWS LOG'
if ! aws rds download-db-log-file-portion
--max-items $last_aws_max_item_size
--starting-token $next_token
--region REGION
--db-instance-identifier $db_instance
--log-file-name error/postgresql.log.$AWS_LOG_TIME > $LOG_FILE
then
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: FATAL_ERROR - Could not get log from AWS .'
exit 4
fi
next_token_str=`cat $LOG_FILE | grep NEXTTOKEN`
next_token=`echo $next_token_str | awk -F" " '{ print $2}' `
TMP_FILE=$LOG_FILE'.tmp'
grep -v NEXTTOKEN $LOG_FILE > $TMP_FILE
last_str=`head -1 $TMP_FILE`
if [[ $next_token == '' ]];
then
concat_str=$first_str$last_str
echo $concat_str >> $RESULT_FILE
line_count=`cat $TMP_FILE | wc -l`
let lines=$line_count-1
tail -$lines $TMP_FILE >> $RESULT_FILE
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: NEXTTOKEN NOT FOUND - FINISH '
rm $LOG_FILE
rm $TMP_FILE
rm $TMP_MIDDLE
rm $TMP_MIDDLE2
exit 0
fi
if [[ $next_token != '' ]];
then
let growth_counter=$growth_counter+1
if [[ $growth_counter -gt $growth_counter_max ]];
then
let last_aws_max_item_size=$last_aws_max_item_size*$growth_factor
let growth_counter=1
fi
if [[ $last_aws_max_item_size -gt $max_item_size ]];
then
let last_aws_max_item_size=$max_item_size
fi
psql -h MONITOR_ENDPOINT.rds.amazonaws.com -U USER -d MONITOR_DATABASE -A -t -q -c "update database set last_aws_nexttoken = '$next_token' where id = $database_id "
concat_str=$first_str$last_str
echo $concat_str >> $RESULT_FILE
line_count=`cat $TMP_FILE | wc -l`
let lines=$line_count-1
#############################
#Get middle of file
head -$lines $TMP_FILE > $TMP_MIDDLE
line_count=`cat $TMP_MIDDLE | wc -l`
let lines=$line_count-1
tail -$lines $TMP_MIDDLE > $TMP_MIDDLE2
cat $TMP_MIDDLE2 >> $RESULT_FILE
first_str=`tail -1 $TMP_FILE`
fi
let count=$count+1
done
#
#################################################################
exit 0
ืกืงืจืืคึผื ืคืจืึทืืืึทื ืฅ ืืื ืขืืืขืืข ืืขืจืงืืขืจืื ืืขื:
ืกืงืจืืคึผื ืึทืจืืึทื ืฉืจืืึทื ืคึผืึทืจืึทืืขืืขืจืก:
- ืฆืืื-ืกืืึทืืคึผ ืคืื ืงืืึธืฅ ืืขืงืข ื ืึธืืขื ืืื YYYY-MM-DD-HH24 ืคึฟืึธืจืืึทื: AWS_LOG_TIME=$1
- ืืึทืืึทืืึทืกืข ืฉืืึทื: database_id=$2
- ืืขืืืืื ืงืืึธืฅ ืืขืงืข ื ืึธืืขื: RESULT_FILE=$3
ืืึทืงืืืขื ืื ืฆืืื ืกืืึทืืคึผ ืคืื ืื ืืขืฆืืข ืืคึผืืึธืึทืืขื ืงืืึธืฅ ืืขืงืข:
current_aws_log_time=`psql -h MONITOR_ENDPOINT.rds.amazonaws.com -U USER -d MONITOR_DATABASE -A -t -c "select last_aws_log_time from database where id = $database_id "`ืืืื ืื ืฆืืื ืกืืึทืืคึผ ืคืื ืื ืืขืฆืืข ืืึธืืืื ืงืืึธืฅ ืืขืงืข ืืื ื ืืฉื ืืืืื ืืื ืื ืึทืจืืึทื ืฉืจืืึทื ืคึผืึทืจืึทืืขืืขืจ, ืึท ื ืืึทืข ืงืืึธืฅ ืืขืงืข ืืื ืืึธืืืื:
if [[ $current_aws_log_time != $AWS_LOG_TIME ]];
then
is_new_log='1'
if ! psql -h ENDPOINT.rds.amazonaws.com -U USER -d MONITOR_DATABASE -v ON_ERROR_STOP=1 -A -t -c "update database set last_aws_log_time = '$AWS_LOG_TIME' where id = $database_id "
then
echo '***download_aws_piece.sh -FATAL_ERROR - update database set last_aws_log_time .'
exit 1
fi
else
is_new_log='0'
fi
ืืืจ ืืึทืงืืืขื ืื ืืืขืจื ืคืื ืื Nexttoken ืคืืจืืข ืคึฟืื ืื ืืึธืืืื ืืขืงืข:
next_token_str=`cat $LOG_FILE | grep NEXTTOKEN`
next_token=`echo $next_token_str | awk -F" " '{ print $2}' `
ืืขืจ ืฆืืืื ืคืื ืื ืกืืฃ ืคืื ืื ืืจืืคืงืืคืืข ืืื ืื ืืืืืืง ืืืขืจื ืคืื Nexttoken.
ืืื ืึท ืฉืืืืฃ, ืืืจ ืฆืืืื ืคึผืึธืจืฉืึทื ื ืคืื ืืขืจ ืืขืงืข, ืฆืืืืืขื ืื ืืืขื, ืงืึทื ืงืึทืืึทื ืืืืื ื ืฉืืจืืช ืืื ืื ืงืจืืกืื ื ืื ืืจืืืก ืคืื ืืขืจ ืืืง:
ืืืืคึผื ืฉืืืืฃ
# MAIN CIRCLE
let count=2
while [[ $next_token != '' ]];
do
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: count='$count
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: START DOWNLOADING OF AWS LOG'
if ! aws rds download-db-log-file-portion
--max-items $last_aws_max_item_size
--starting-token $next_token
--region REGION
--db-instance-identifier $db_instance
--log-file-name error/postgresql.log.$AWS_LOG_TIME > $LOG_FILE
then
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: FATAL_ERROR - Could not get log from AWS .'
exit 4
fi
next_token_str=`cat $LOG_FILE | grep NEXTTOKEN`
next_token=`echo $next_token_str | awk -F" " '{ print $2}' `
TMP_FILE=$LOG_FILE'.tmp'
grep -v NEXTTOKEN $LOG_FILE > $TMP_FILE
last_str=`head -1 $TMP_FILE`
if [[ $next_token == '' ]];
then
concat_str=$first_str$last_str
echo $concat_str >> $RESULT_FILE
line_count=`cat $TMP_FILE | wc -l`
let lines=$line_count-1
tail -$lines $TMP_FILE >> $RESULT_FILE
echo $(date +%Y%m%d%H%M)': download_aws_piece.sh: NEXTTOKEN NOT FOUND - FINISH '
rm $LOG_FILE
rm $TMP_FILE
rm $TMP_MIDDLE
rm $TMP_MIDDLE2
exit 0
fi
if [[ $next_token != '' ]];
then
let growth_counter=$growth_counter+1
if [[ $growth_counter -gt $growth_counter_max ]];
then
let last_aws_max_item_size=$last_aws_max_item_size*$growth_factor
let growth_counter=1
fi
if [[ $last_aws_max_item_size -gt $max_item_size ]];
then
let last_aws_max_item_size=$max_item_size
fi
psql -h MONITOR_ENDPOINT.rds.amazonaws.com -U USER -d MONITOR_DATABASE -A -t -q -c "update database set last_aws_nexttoken = '$next_token' where id = $database_id "
concat_str=$first_str$last_str
echo $concat_str >> $RESULT_FILE
line_count=`cat $TMP_FILE | wc -l`
let lines=$line_count-1
#############################
#Get middle of file
head -$lines $TMP_FILE > $TMP_MIDDLE
line_count=`cat $TMP_MIDDLE | wc -l`
let lines=$line_count-1
tail -$lines $TMP_MIDDLE > $TMP_MIDDLE2
cat $TMP_MIDDLE2 >> $RESULT_FILE
first_str=`tail -1 $TMP_FILE`
fi
let count=$count+1
done
ืืืืก ืืื ื ืขืงืกื?
ืึทืืื, ืืขืจ ืขืจืฉืืขืจ ืื ืืขืจืืืืืื ืึทืจืืขื - "ืึธืคึผืืึธืืืจื ืื ืงืืึธืฅ ืืขืงืข ืคึฟืื ืื ืืืึธืืงื" ืืื ืกืึทืืืื. ืืืึธืก ืฆื ืืึธื ืืื ืื ืืึทืื ืืึธืืืื ืงืืึธืฅ?
ืขืจืฉืืขืจ ืืืจ ืืึทืจืคึฟื ืฆื ืคึผืึทืจืก ืื ืงืืึธืฅ ืืขืงืข ืืื ืขืงืกืืจืึทืงื ืื ืคืึทืงืืืฉ ืจืืงืืืขืก ืคืื ืขืก.
ืื ืึทืจืืขื ืืื ื ืืฉื ืืืืขืจ ืฉืืืขืจ. ืื ืกืืืคึผืืึทืกื ืืึทืฉ-ืฉืจืืคื ืืื ืืื.
upload_log_query.sh
#!/bin/bash
#########################################################
# upload_log_query.sh
# Upload table table from dowloaded aws file
# version HABR
###########################################################
echo 'TIMESTAMP:'$(date +%c)' Upload log_query table '
source_file=$1
echo 'source_file='$source_file
database_id=$2
echo 'database_id='$database_id
beginer=' '
first_line='1'
let "line_count=0"
sql_line=' '
sql_flag=' '
space=' '
cat $source_file | while read line
do
line="$space$line"
if [[ $first_line == "1" ]]; then
beginer=`echo $line | awk -F" " '{ print $1}' `
first_line='0'
fi
current_beginer=`echo $line | awk -F" " '{ print $1}' `
if [[ $current_beginer == $beginer ]]; then
if [[ $sql_flag == '1' ]]; then
sql_flag='0'
log_date=`echo $sql_line | awk -F" " '{ print $1}' `
log_time=`echo $sql_line | awk -F" " '{ print $2}' `
duration=`echo $sql_line | awk -F" " '{ print $5}' `
#replace ' to ''
sql_modline=`echo "$sql_line" | sed 's/'''/''''''/g'`
sql_line=' '
################
#PROCESSING OF THE SQL-SELECT IS HERE
if ! psql -h ENDPOINT.rds.amazonaws.com -U USER -d DATABASE -v ON_ERROR_STOP=1 -A -t -c "select log_query('$ip_port',$database_id , '$log_date' , '$log_time' , '$duration' , '$sql_modline' )"
then
echo 'FATAL_ERROR - log_query '
exit 1
fi
################
fi #if [[ $sql_flag == '1' ]]; then
let "line_count=line_count+1"
check=`echo $line | awk -F" " '{ print $8}' `
check_sql=${check^^}
#echo 'check_sql='$check_sql
if [[ $check_sql == 'SELECT' ]]; then
sql_flag='1'
sql_line="$sql_line$line"
ip_port=`echo $sql_line | awk -F":" '{ print $4}' `
fi
else
if [[ $sql_flag == '1' ]]; then
sql_line="$sql_line$line"
fi
fi #if [[ $current_beginer == $beginer ]]; then
done
ืืืฆื ืืืจ ืงืขื ืขื ืึทืจืืขืื ืืื ืื ืึธื ืคึฟืจืขื ืืงืกืืจืึทืงืืื ืคืื ืื ืงืืึธืฅ ืืขืงืข.
ืืื ืขืก ืืขื ืขื ืขืืืขืืข ื ืืฆืืง ืคึผืึทืกืึทืืืืึทืืื.
ืคึผืึทืจืกืขื ืงืืืืจืื ืืืื ืืืื ืกืืึธืจื ืขืจืืขืฅ. ืคึฟืึทืจ ืืขื, ืึท ืืื ืกื ืืืฉ ืืื ืืขื ืืฆื. log_query
CREATE TABLE log_query
(
id SERIAL ,
queryid bigint ,
query_md5hash text not null ,
database_id integer not null ,
timepoint timestamp without time zone not null,
duration double precision not null ,
query text not null ,
explained_plan text[],
plan_md5hash text ,
explained_plan_wo_costs text[],
plan_hash_value text ,
baseline_id integer ,
ip text ,
port text
);
ALTER TABLE log_query ADD PRIMARY KEY (id);
ALTER TABLE log_query ADD CONSTRAINT queryid_timepoint_unique_key UNIQUE (queryid, timepoint );
ALTER TABLE log_query ADD CONSTRAINT query_md5hash_timepoint_unique_key UNIQUE (query_md5hash, timepoint );
CREATE INDEX log_query_timepoint_idx ON log_query (timepoint);
CREATE INDEX log_query_queryid_idx ON log_query (queryid);
ALTER TABLE log_query ADD CONSTRAINT database_id_fk FOREIGN KEY (database_id) REFERENCES database (id) ON DELETE CASCADE ;
ืื ืคึผืึทืจืกืขื ืืงืฉื ืืื ืคึผืจืึทืกืขืกื ืืื plpgsql ืคืึทื ืืงืฉืึทื ื "log_query'.
log_query.sql
--log_query.sql
--verison HABR
CREATE OR REPLACE FUNCTION log_query( ip_port text ,log_database_id integer , log_date text , log_time text , duration text , sql_line text ) RETURNS boolean AS $$
DECLARE
result boolean ;
log_timepoint timestamp without time zone ;
log_duration double precision ;
pos integer ;
log_query text ;
activity_string text ;
log_md5hash text ;
log_explain_plan text[] ;
log_planhash text ;
log_plan_wo_costs text[] ;
database_rec record ;
pg_stat_query text ;
test_log_query text ;
log_query_rec record;
found_flag boolean;
pg_stat_history_rec record ;
port_start integer ;
port_end integer ;
client_ip text ;
client_port text ;
log_queryid bigint ;
log_query_text text ;
pg_stat_query_text text ;
BEGIN
result = TRUE ;
RAISE NOTICE '***log_query';
port_start = position('(' in ip_port);
port_end = position(')' in ip_port);
client_ip = substring( ip_port from 1 for port_start-1 );
client_port = substring( ip_port from port_start+1 for port_end-port_start-1 );
SELECT e.host , d.name , d.owner_pwd
INTO database_rec
FROM database d JOIN endpoint e ON e.id = d.endpoint_id
WHERE d.id = log_database_id ;
log_timepoint = to_timestamp(log_date||' '||log_time,'YYYY-MM-DD HH24-MI-SS');
log_duration = duration:: double precision;
pos = position ('SELECT' in UPPER(sql_line) );
log_query = substring( sql_line from pos for LENGTH(sql_line));
log_query = regexp_replace(log_query,' +',' ','g');
log_query = regexp_replace(log_query,';+','','g');
log_query = trim(trailing ' ' from log_query);
log_md5hash = md5( log_query::text );
--Explain execution plan--
EXECUTE 'SELECT dblink_connect(''LINK1'',''host='||database_rec.host||' dbname='||database_rec.name||' user=DATABASE password='||database_rec.owner_pwd||' '')';
log_explain_plan = ARRAY ( SELECT * FROM dblink('LINK1', 'EXPLAIN '||log_query ) AS t (plan text) );
log_plan_wo_costs = ARRAY ( SELECT * FROM dblink('LINK1', 'EXPLAIN ( COSTS FALSE ) '||log_query ) AS t (plan text) );
PERFORM dblink_disconnect('LINK1');
--------------------------
BEGIN
INSERT INTO log_query
(
query_md5hash ,
database_id ,
timepoint ,
duration ,
query ,
explained_plan ,
plan_md5hash ,
explained_plan_wo_costs ,
plan_hash_value ,
ip ,
port
)
VALUES
(
log_md5hash ,
log_database_id ,
log_timepoint ,
log_duration ,
log_query ,
log_explain_plan ,
md5(log_explain_plan::text) ,
log_plan_wo_costs ,
md5(log_plan_wo_costs::text),
client_ip ,
client_port
);
activity_string = 'New query has logged '||
' database_id = '|| log_database_id ||
' query_md5hash='||log_md5hash||
' , timepoint = '||to_char(log_timepoint,'YYYYMMDD HH24:MI:SS');
RAISE NOTICE '%',activity_string;
PERFORM pg_log( log_database_id , 'log_query' , activity_string);
EXCEPTION
WHEN unique_violation THEN
RAISE NOTICE '*** unique_violation *** query already has logged';
END;
SELECT queryid
INTO log_queryid
FROM log_query
WHERE query_md5hash = log_md5hash AND
timepoint = log_timepoint;
IF log_queryid IS NOT NULL
THEN
RAISE NOTICE 'log_query with query_md5hash = % and timepoint = % has already has a QUERYID = %',log_md5hash,log_timepoint , log_queryid ;
RETURN result;
END IF;
------------------------------------------------
RAISE NOTICE 'Update queryid';
SELECT *
INTO log_query_rec
FROM log_query
WHERE query_md5hash = log_md5hash AND timepoint = log_timepoint ;
log_query_rec.query=regexp_replace(log_query_rec.query,';+','','g');
FOR pg_stat_history_rec IN
SELECT
queryid ,
query
FROM
pg_stat_db_queries
WHERE
database_id = log_database_id AND
queryid is not null
LOOP
pg_stat_query = pg_stat_history_rec.query ;
pg_stat_query=regexp_replace(pg_stat_query,'n+',' ','g');
pg_stat_query=regexp_replace(pg_stat_query,'t+',' ','g');
pg_stat_query=regexp_replace(pg_stat_query,' +',' ','g');
pg_stat_query=regexp_replace(pg_stat_query,'$.','%','g');
log_query_text = trim(trailing ' ' from log_query_rec.query);
pg_stat_query_text = pg_stat_query;
--SELECT log_query_rec.query like pg_stat_query INTO found_flag ;
IF (log_query_text LIKE pg_stat_query_text) THEN
found_flag = TRUE ;
ELSE
found_flag = FALSE ;
END IF;
IF found_flag THEN
UPDATE log_query SET queryid = pg_stat_history_rec.queryid WHERE query_md5hash = log_md5hash AND timepoint = log_timepoint ;
activity_string = ' updated queryid = '||pg_stat_history_rec.queryid||
' for log_query with id = '||log_query_rec.id
;
RAISE NOTICE '%',activity_string;
EXIT ;
END IF ;
END LOOP ;
RETURN result ;
END
$$ LANGUAGE plpgsql;
ืืืขื ืคึผืจืึทืกืขืกืื ื, ืื ืืื ืกื ืืืฉ ืืื ืืขื ืืฆื pg_stat_db_queriesื ืืืึธืก ืึผืืื ืึท ืืึธืืขื ืืืืื ืคืื ืื ืงืจืึทื ื ืคึฟืจืืื ืคืื ืื ืืืฉ pg_stat_history (ืืืฉ ืืึทื ืืฅ ืืื ืืืกืงืจืืืื ืืึธ - )
TABLE pg_stat_db_queries
(
database_id integer,
queryid bigint ,
query text ,
max_time double precision
);
TABLE pg_stat_history
(
โฆ
database_id integer ,
โฆ
queryid bigint ,
โฆ
max_time double precision ,
โฆ
);
ืื ืคึฟืื ืงืฆืืข ืึทืืึทืื ืืืจ ืฆื ืื ืกืืจืืืขื ื ืึท ื ืืืขืจ ืคืื ื ืืฆืืง ืคึฟืขืึดืงืืืื ืคึฟืึทืจ ืคึผืจืึทืกืขืกืื ื ืจืืงืืืขืก ืคึฟืื ืึท ืงืืึธืฅ ืืขืงืข. ื ืขืืืื:
ืืขืืขืื ืืืื #1 - ืึธื ืคึฟืจืขื ืืืจืืคืืจืื ื ืืขืฉืืืืข
ืืืืขืจ ื ืืฆืืง ืคึฟืึทืจ ืกืืึทืจืืื ื ืึท ืคืึธืจืฉืืขืืื ื ืืื ืฆืืืขื ื. ืขืจืฉืืขืจ, ืืึทืงืืืขื ืืึทืงืึทื ื ืืื ืื ืืขืฉืืืืข - ืืื ืืืขื ืืื ืื ืกืืึธืืืึทืื ืื ืืขืืืืื?
ืืขืจื ืึธื, ืืืื ืื ืงืืึทืกืืงืก, ืงืืง ืคึฟืึทืจ ืคืื ืืจืืืกื ืืืง ืกืืืืช. ืขืก ืงืขื ื ืึธืจ ืืืื ืึทื ืื ืืึทืืึทืืืืก ืืึทืกืข ืืื ืืขืืืืงืกื ืืจืึทืืึทืืืงืื ืืื ืื ืกืคึผืขืฆืืคืืฉ ืืงืฉื ืืื ืืึธืจื ืืฉื ืฆื ืืึธื ืืื ืืื.
ืืืื ื ืืึท ืคึผืึธืืืฆืืข ืฆื ืืึธื_ืงืืืขืจื ืืืฉ
port_start = position('(' in ip_port);
port_end = position(')' in ip_port);
client_ip = substring( ip_port from 1 for port_start-1 );
client_port = substring( ip_port from port_start+1 for port_end-port_start-1 );
SELECT e.host , d.name , d.owner_pwd
INTO database_rec
FROM database d JOIN endpoint e ON e.id = d.endpoint_id
WHERE d.id = log_database_id ;
log_timepoint = to_timestamp(log_date||' '||log_time,'YYYY-MM-DD HH24-MI-SS');
log_duration = to_number(duration,'99999999999999999999D9999999999');
pos = position ('SELECT' in UPPER(sql_line) );
log_query = substring( sql_line from pos for LENGTH(sql_line));
log_query = regexp_replace(log_query,' +',' ','g');
log_query = regexp_replace(log_query,';+','','g');
log_query = trim(trailing ' ' from log_query);
RAISE NOTICE 'log_query=%',log_query ;
log_md5hash = md5( log_query::text );
--Explain execution plan--
EXECUTE 'SELECT dblink_connect(''LINK1'',''host='||database_rec.host||' dbname='||database_rec.name||' user=DATABASE password='||database_rec.owner_pwd||' '')';
log_explain_plan = ARRAY ( SELECT * FROM dblink('LINK1', 'EXPLAIN '||log_query ) AS t (plan text) );
log_plan_wo_costs = ARRAY ( SELECT * FROM dblink('LINK1', 'EXPLAIN ( COSTS FALSE ) '||log_query ) AS t (plan text) );
PERFORM dblink_disconnect('LINK1');
--------------------------
BEGIN
INSERT INTO log_query
(
query_md5hash ,
database_id ,
timepoint ,
duration ,
query ,
explained_plan ,
plan_md5hash ,
explained_plan_wo_costs ,
plan_hash_value ,
ip ,
port
)
VALUES
(
log_md5hash ,
log_database_id ,
log_timepoint ,
log_duration ,
log_query ,
log_explain_plan ,
md5(log_explain_plan::text) ,
log_plan_wo_costs ,
md5(log_plan_wo_costs::text),
client_ip ,
client_port
);
ืฉืืจืื #2 - ืืื ืงืืืขืจื ืขืงืกืขืงืืืืึธื ืคึผืืึทื ืก
ืืื ืืขื ืคืื ื, ืึท ืึทืืืืฉืขืงืฉืึทื-ืงืืขืจืึทืคืึทืงืืืฉืึทื-ืืึทืืขืจืงืื ื ืงืขื ืืืืคืฉืืืื: "ืืืขืจ ืขืก ืืื ืฉืืื ืึทืืืึธืขืงืกืคึผืืึทืื". ืืึธ, ืขืก ืืื, ืึธืืขืจ ืืืึธืก ืืื ืื ืคืื ื ืืืื ืืขืจ ืืืจืืคืืจืื ื ืคึผืืึทื ืืื ืกืืึธืจื ืืื ืืขืจ ืืขืืืืงืขืจ ืงืืึธืฅ ืืขืงืข ืืื ืฆื ืจืึทืืขืืืขื ืขืก ืคึฟืึทืจ ืืืืึทืืขืจ ืึทื ืึทืืืกืืก, ืืืจ ืืืื ืคึผืึทืจืก ืื ืงืืึธืฅ ืืขืงืข?
ืึธืืขืจ, ืืื ืืืจืฃ:
ืขืจืฉืืขืจ: ืงืจืึธื ืื ืืืจืืคืืจืื ื ืคึผืืึทื ืืื ืื ืืื ืกื ืืืฉ ืคืื ืื ืืึธื ืืืึธืจืื ื ืืึทืืึทืืืืก;
ืฆืืืืืื ืก: ืฆื ืงืขื ืขื ืคืึทืจืืืืึทืื ืืืจืืคืืจืื ื ืคึผืืึทื ื ืืื ืืขืืขืจ ืื ืืขืจืข ืืื ืกืืจ ืฆื ืืื ืืขื ืึทื ืื ืึธื ืคึฟืจืขื ืืืจืืคืืจืื ื ืคึผืืึทื ืืื ืืขืืืื.
ื ืืงืฉื ืืื ืกืคึผืขืฆืืคืืฉ ืืืจืืคืืจืื ื ืคึผืึทืจืึทืืขืืขืจืก ืืื ืื ืืืฆื. ืืึทืงืืืขื ืืื ืกืืึธืจืื ื ืืืื ืืืจืืคืืจืื ื ืคึผืืึทื ืืื EXPLAIN ืืื ืึทื ืขืืขืืขื ืืึทืจ ืึทืจืืขื.
ืืขืจืฆื, ื ืืฆื ืื EXPLAIN (COSTS FALSE) ืืืืกืืจืืง, ืืืจ ืงืขื ืขื ืืึทืงืืืขื ืื ืคืจืืืืืืขืจืง ืคืื ืืขื ืคึผืืึทื, ืืืึธืก ืืืขื ืืืื ืืขื ืืฆื ืฆื ืืึทืงืืืขื ืื ืืึทืฉ ืืืขืจื ืคืื ืืขื ืคึผืืึทื, ืืืึธืก ืืืขื ืืขืืคึฟื ืืื ืื ืกืึทืืกืึทืงืืืึทื ื ืึทื ืึทืืืกืืก ืคืื ืื ืขื ืืขืจืื ืืขื ืืขืฉืืืืข ืคืื โโืื ืืืจืืคืืจืื ื ืคึผืืึทื.
ืืึทืงืืืขื ืึท ืืืจืืคืืจืื ื ืคึผืืึทื ืืืกืืขืจ
--Explain execution plan--
EXECUTE 'SELECT dblink_connect(''LINK1'',''host='||database_rec.host||' dbname='||database_rec.name||' user=DATABASE password='||database_rec.owner_pwd||' '')';
log_explain_plan = ARRAY ( SELECT * FROM dblink('LINK1', 'EXPLAIN '||log_query ) AS t (plan text) );
log_plan_wo_costs = ARRAY ( SELECT * FROM dblink('LINK1', 'EXPLAIN ( COSTS FALSE ) '||log_query ) AS t (plan text) );
PERFORM dblink_disconnect('LINK1');
ืืขืืขืื ืืืื #3 - ื ืืฆื ืื ืึธื ืคึฟืจืขื ืงืืึธืฅ ืคึฟืึทืจ ืืึธื ืืืึธืจืื ื
ืืื ื ืื ืคืึธืจืฉืืขืืื ื ืืขืืจืืงืก ืืขื ืขื ืงืึทื ืคืืืืขืจื ื ืืฉื ืคึฟืึทืจ ืื ืืขืื ืืขืงืกื, ืึธืืขืจ ืคึฟืึทืจ ืืืื ืฉืืึทื, ืืืจ ืืึทืจืคึฟื ืฆื ืคืึทืจืืื ืื ืจืืงืืืขืก ืคืื ืื ืงืืึธืฅ ืืขืงืข ืืื ืจืืงืืืขืก ืคึฟืึทืจ ืืืึธืก ืคืึธืจืฉืืขืืื ื ืืขืืจืืงืก ืืขื ืขื ืงืึทื ืคืืืืขืจื.
ื ื, ืืื ืืื ืืกืืขืจ ืืื ืกืืจ ืฆื ืืึธืื ืื ืคึผืื ืืืขื ืฆืืื ืคืื ืคึผืึทืกืืจืื ื ืคืื ืึท ืคืึธืจืฉืืขืืื ื ืืื ืฆืืืขื ื.
ืืืื, ืืืขื ืึท ืคืึธืจืฉืืขืืื ื ืืื ืฆืืืขื ื ืึทืงืขืจื ืคึฟืึทืจ ืึท ืืขืื ืฉืืึทื, ืขืก ืืืขื ืืืื ืึท ืจืขืคึฟืขืจืขื ืฅ ืฆื ืึท ืกืคึผืขืฆืืคืืฉ ืืขืื ืืื ืกืคึผืขืฆืืคืืฉ ืคึผืึทืจืึทืืขืืขืจ ืืืึทืืืขืก ืืื ืื ืคึผืื ืืืขื ืืืจืืคืืจืื ื ืฆืืื ืืื ืืขืืืืขืจ ืคืื ืื ืืขืื. ืืึทืงืืืขื ืื ืืขืืขืื ืืื ืคึฟืึธืจืืึทืฆืืข ื ืืฆื ืืืืื ืื ืืืื ืื ื pg_stat_statements โ ืืณืืื ืคืืจืืืื.
ืืขืคึฟืื ืขื ืื queryid ืคืื ืื ืึธื ืคึฟืจืขื ืืื ืืขืจืืืึทื ืืืงื ืื ืคึผืึธืืืฆืืข ืืื ืื log_query ืืืฉ
SELECT *
INTO log_query_rec
FROM log_query
WHERE query_md5hash = log_md5hash AND timepoint = log_timepoint ;
log_query_rec.query=regexp_replace(log_query_rec.query,';+','','g');
FOR pg_stat_history_rec IN
SELECT
queryid ,
query
FROM
pg_stat_db_queries
WHERE
database_id = log_database_id AND
queryid is not null
LOOP
pg_stat_query = pg_stat_history_rec.query ;
pg_stat_query=regexp_replace(pg_stat_query,'n+',' ','g');
pg_stat_query=regexp_replace(pg_stat_query,'t+',' ','g');
pg_stat_query=regexp_replace(pg_stat_query,' +',' ','g');
pg_stat_query=regexp_replace(pg_stat_query,'$.','%','g');
log_query_text = trim(trailing ' ' from log_query_rec.query);
pg_stat_query_text = pg_stat_query;
--SELECT log_query_rec.query like pg_stat_query INTO found_flag ;
IF (log_query_text LIKE pg_stat_query_text) THEN
found_flag = TRUE ;
ELSE
found_flag = FALSE ;
END IF;
IF found_flag THEN
UPDATE log_query SET queryid = pg_stat_history_rec.queryid WHERE query_md5hash = log_md5hash AND timepoint = log_timepoint ;
activity_string = ' updated queryid = '||pg_stat_history_rec.queryid||
' for log_query with id = '||log_query_rec.id
;
RAISE NOTICE '%',activity_string;
EXIT ;
END IF ;
END LOOP ;
ืึทืคืืขืจืืืึธืจื
ืืื ืึท ืจืขืืืืืึทื, ืื ืืืกืงืจืืืื ืืืคึฟื ืืื ืืขืคึฟืื ืขื ืืืึทื ืึทืคึผืืึทืงืืืฉืึทื ืืื , ืึทืืึทืืื ื ืืืจ ืฆื ืืึธืื ืืขืจ ืืื ืคึฟืึธืจืืึทืฆืืข ืคึฟืึทืจ ืึทื ืึทืืืกืืก ืืืขื ืจืืืึทืืืืื ื ืืืขืจืืืฉืื ื ืึธื ืคึฟืจืขื ืคืึธืจืฉืืขืืื ื ืื ืกืึทืืึทื ืฅ.
ืืึธืืฉ, ืคืื ืงืืจืก, ืืื ืืืื ืคึผืขืจืืขื ืืขื ืืืื ืื ื, ืขืก ืืืขื ื ืึธื ืืืื ื ืืืืืง ืฆื ืึทืจืืขืื ืืืืฃ ืื ืึทืืืขืจืืืึทื ืคึฟืึทืจ ืกืขืืื ื ืืื ืืฉืึทื ืืื ื ืื ืืจืืืก ืคืื ืื ืืึทืื ืืึธืืืื ืืืง. ืืขืจ ืคึผืจืึธืืืขื ืืื ื ืึธื ื ืืฉื ืกืึทืืืื ืืื ืื ืึทืืืขืืืื ืข ืคืึทื. ืขืก ืืืขื ืืืกืืึธืืข ืืืื ืืฉืืงืึทืืืข.
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