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Adds check for log rotation, command-line options, DB chema inside script.

main
Yasen Pramatarov 2024-05-23 12:05:54 +03:00
parent 032bd1dc8a
commit f2ea57804b
2 changed files with 127 additions and 32 deletions
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2
.gitignore vendored 100644
View File

@ -0,0 +1,2 @@
jvb*.log
jitsi-stats.db

147
jvb/jitsi-stats
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@ -1,14 +1,12 @@
#!/usr/bin/env bash
#grep -e 'Videobridge.createConference\|Conference.expire' jvb.log > 11
### Variables
# log files
LOGFILE="../../jvb.log"
ROTATED_LOGFILE="../../jvb.log.1"
LOGFILE="./jvb.log"
ROTATED_LOGFILE="./jvb.log.1"
# SQLite database file
DB="../../jitsi-stats.db"
DB="./jitsi-stats.db"
###
@ -16,6 +14,33 @@ DB="../../jitsi-stats.db"
db_get_state='SELECT filename, filetime, position, inode FROM state WHERE id = 1;'
db_set_state_template="UPDATE state SET time=datetime('now'), filename='%s', filetime='%s', position='%s', inode='%s' WHERE id = 1;"
db_insert_template="INSERT INTO conferences (conference_name, conference_id, start, end) VALUES ('%s', '%s', '%s', '%s');"
db_create="
DROP TABLE conferences;
CREATE TABLE conferences (
id INTEGER PRIMARY_KEY,
conference_name TEXT,
conference_id TEXT,
start TEXT,
end TEXT
);
DROP TABLE state;
CREATE TABLE state (
id INTEGER PRIMARY_KEY,
time TEXT,
filename TEXT,
filetime INTEGER,
position INTEGER CHECK(typeof(position)='integer'),
inode INTEGER
);
INSERT OR REPLACE INTO state (id, time, filename, filetime, position, inode) VALUES (1, '1970-01-01 00:00:00.000', '', 0, 0, 0);"
db_flush="
DELETE FROM conferences;
DELETE FROM state;
INSERT OR REPLACE INTO state (id, time, filename, filetime, position, inode) VALUES (1, '1970-01-01 00:00:00.000', '', 0, 0, 0);"
###
# DB functions
# Get the last processed state from the database
get_state() {
@ -32,23 +57,18 @@ set_state() {
sqlite3 "$DB" "$db_set_state"
}
# Retrieve last log file and position inside it
IFS='|' read -r last_file last_filetime last_pos last_inode <<< $(get_state)
# Initialize logfile vars
last_pos=${last_pos:-0}
current_inode=$(stat -c '%i' "$LOGFILE")
current_filetime=$(stat -c '%Y' "$LOGFILE")
# Local assoc array for conference events tracking
declare -A start_times
###
# Main parsing funstion
jvb_log_parse() {
local file=$1
local start_pos=$2
local new_last_pos="$start_pos"
# Local assoc array for conference events tracking
declare -A start_times
# We open the file and start reading from $start_pos bytes
exec 3<"$file"
while IFS= read -r line; do
@ -82,24 +102,97 @@ jvb_log_parse() {
echo "$new_last_pos"
}
# parse the rotated log file
if [[ "$last_file" == "$LOGFILE" && -f "$ROTATED_LOGFILE" ]]; then
echo "Processing the rotated log file: $ROTATED_LOGFILE"
###
# commandline options
case "$1" in
--create-db|-d)
sqlite3 "$DB" "$db_create"
echo "Database created."
exit 0
;;
--flush|-f)
sqlite3 "$DB" "$db_flush"
echo "Tables flushed."
exit 0
;;
--check|-c)
# Retrieve last log file and position inside it
IFS='|' read -r last_file last_filetime last_pos last_inode <<< $(get_state)
# Initialize logfile vars
current_inode=$(stat -c '%i' "$LOGFILE")
current_filetime=$(stat -c '%Y' "$LOGFILE")
if [[ "$last_file" == '' || "$last_inode" == 0 ]]; then
echo "It looks like a fresh install. You can now run log parsing."
exit 0
fi
# report
echo "Last file: $last_file"
echo "Last filetime: $last_filetime"
echo "Last inode: $last_inode"
echo "Last processed position: $last_pos"
echo "Current filetime: $current_filetime"
echo "Current inode: $current_inode"
if [[ "$last_file" != "$LOGFILE" || "$last_inode" != "$current_inode" ]]; then
echo "Log file has rotated."
else
echo "Log file has not rotated."
fi
if [[ "$current_filetime" -ne "$last_filetime" ]]; then
echo "New lines have been added to the log."
else
echo "No new lines in the log."
fi
exit 0
;;
--parse|-p)
# Retrieve last log file and position inside it
IFS='|' read -r last_file last_filetime last_pos last_inode <<< $(get_state)
# Initialize logfile vars
last_pos=${last_pos:-0}
current_inode=$(stat -c '%i' "$LOGFILE")
current_filetime=$(stat -c '%Y' "$LOGFILE")
# Detect if the logfile was rotated (same inode, smaller size - copytruncate in logrotate)
# parse the rotated log file
current_size=$(stat -c '%s' "$LOGFILE")
if [[ "$last_inode" == "$current_inode" && "$current_size" -lt "$last_pos" && -f "$ROTATED_LOGFILE" ]]; then
echo "Logfile was rotated. Processing the rotated log file: $ROTATED_LOGFILE"
last_pos=$(jvb_log_parse "$ROTATED_LOGFILE" 0)
last_file="$ROTATED_LOGFILE"
last_inode=$(stat -c '%i' "$ROTATED_LOGFILE")
last_filetime=$(stat -c '%Y' "$ROTATED_LOGFILE")
set_state "$last_file" "$last_filetime" "$last_pos" "$last_inode"
fi
fi
# parse the current log file
echo "Processing the current log file: $LOGFILE"
new_last_pos=$(jvb_log_parse "$LOGFILE" "$last_pos")
# parse the current log file
echo "Processing the current log file: $LOGFILE"
new_last_pos=$(jvb_log_parse "$LOGFILE" "$last_pos")
# DEBUG
echo "New last position after parsing: $new_last_pos"
# DEBUG
echo "New last position after parsing: $new_last_pos"
# update the state in db
set_state "$LOGFILE" "$current_filetime" "$new_last_pos" "$current_inode"
# update the state in db
set_state "$LOGFILE" "$current_filetime" "$new_last_pos" "$current_inode"
echo "Data import finished."
echo "Data import finished."
exit 0
;;
*)
echo -e "Usage:\n\t$0 [OPTION]\nOptions:\n\t--create-db|-d - create the database\n\t--flush|-f - flush the tables\n\t--check|-c - check for new data\n\t--parse|-p - parse the logs"
exit 1
;;
esac