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parse-replication-logs.js
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parse-replication-logs.js
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'use strict';
const fs = require('fs');
let DATE;
const START_BACKUP = 'Backup ID:';
const START_REPLICATION = 'Start restore';
const START_ENRICHMENT = 'Restore done';
function _printPrettyTimeElapsedBetweenTwoDates(olderDate, date) {
const secondsElapsed = _getSecondsElapsedBetweenTwoDates(olderDate, date);
return _printPrettyTimeElapsed(secondsElapsed);
}
function _printPrettyTimeElapsed(secondsElapsed) {
const hours = Math.trunc(secondsElapsed / 60 / 60);
const secondsMinusHours = secondsElapsed - (hours * 60 * 60);
const minutes = Math.trunc(secondsMinusHours / 60);
const seconds = Math.round(secondsMinusHours - (minutes * 60), 0);
return `${hours}h ${minutes}min ${seconds}s`;
}
function _getSecondsElapsedBetweenTwoDates(olderDate, date) {
return (date.getTime() - olderDate.getTime()) / 1000;
}
function _extractTimestampFromLogLine(logLine) {
const rx = /[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}\.[0-9]* \+[0-9]{4}/g;
const match = rx.exec(logLine);
return new Date(match[0]);
}
function _filterLinesInDate(logLines) {
return logLines.filter((line) => line.startsWith(DATE));
}
function _extractTimestampFromContent(logLines, content) {
const logLineWithTimestamp = logLines.find((line) => line.includes(content));
return _extractTimestampFromLogLine(logLineWithTimestamp);
}
function _editItemIfComplete(collection, key) {
if (collection[key].endTimestamp && collection[key].startTimestamp) {
collection[key] = {
operation: collection[key].operation,
elapsed: _getSecondsElapsedBetweenTwoDates(collection[key].startTimestamp, collection[key].endTimestamp),
};
}
}
function _findItemsInLogLines(logLines) {
const findingItems = {};
const rxLaunch = /.* launching item ([0-9]*) (.*)/g;
const rxFinished = /.* finished item ([0-9]*) .*/g;
for (const logLine of logLines) {
rxLaunch.lastIndex = 0;
rxFinished.lastIndex = 0;
const matchLaunch = rxLaunch.exec(logLine);
const matchFinished = rxFinished.exec(logLine);
if (matchLaunch) {
const line = matchLaunch[0];
const opId = matchLaunch[1].toString();
const op = matchLaunch[2];
if (!findingItems[opId]) {
findingItems[opId] = {};
}
findingItems[opId].startTimestamp = _extractTimestampFromLogLine(line);
findingItems[opId].operation = op;
_editItemIfComplete(findingItems, opId);
}
if (matchFinished) {
const line = matchFinished[0];
const opId = matchFinished[1].toString();
if (!findingItems[opId]) {
findingItems[opId] = {};
}
findingItems[opId].endTimestamp = _extractTimestampFromLogLine(line);
_editItemIfComplete(findingItems, opId);
}
}
return findingItems;
}
function _categorize(foundItems) {
const sequenceItems = {};
const tableDataItems = {};
const constraintItems = {};
const indexItems = {};
const fkConstraintItems = {};
sequenceItems.totalElapsed = 0;
sequenceItems.operations = [];
tableDataItems.totalElapsed = 0;
tableDataItems.operations = [];
constraintItems.totalElapsed = 0;
constraintItems.operations = [];
indexItems.totalElapsed = 0;
indexItems.operations = [];
fkConstraintItems.totalElapsed = 0;
fkConstraintItems.operations = [];
for (const operationInfo of Object.values(foundItems)) {
if (operationInfo.operation.startsWith('FK CONSTRAINT')) {
fkConstraintItems.totalElapsed += operationInfo.elapsed;
fkConstraintItems.operations.push(operationInfo);
}
if (operationInfo.operation.startsWith('CONSTRAINT')) {
constraintItems.totalElapsed += operationInfo.elapsed;
constraintItems.operations.push(operationInfo);
}
if (operationInfo.operation.startsWith('INDEX')) {
indexItems.totalElapsed += operationInfo.elapsed;
indexItems.operations.push(operationInfo);
}
if (operationInfo.operation.startsWith('SEQUENCE')) {
sequenceItems.totalElapsed += operationInfo.elapsed;
sequenceItems.operations.push(operationInfo);
}
if (operationInfo.operation.startsWith('TABLE DATA')) {
tableDataItems.totalElapsed += operationInfo.elapsed;
tableDataItems.operations.push(operationInfo);
}
}
return {
sequenceItems,
tableDataItems,
constraintItems,
indexItems,
fkConstraintItems,
};
}
function _sortByElapsed(categoryItems) {
categoryItems.operations = categoryItems.operations.sort(_compareOperation);
return categoryItems;
}
function _compareOperation(operationA, operationB) {
if (operationA.elapsed > operationB.elapsed) {
return -1;
} else if (operationA.elapsed < operationB.elapsed) {
return 1;
} else {
return 0;
}
}
function _categorizeAndSortByElapsed(foundItems) {
const {
sequenceItems,
tableDataItems,
constraintItems,
indexItems,
fkConstraintItems,
} = _categorize(foundItems);
return {
sequenceItems: _sortByElapsed(sequenceItems),
tableDataItems: _sortByElapsed(tableDataItems),
constraintItems: _sortByElapsed(constraintItems),
indexItems: _sortByElapsed(indexItems),
fkConstraintItems: _sortByElapsed(fkConstraintItems),
};
}
function _do(logLines) {
const foundItems = _findItemsInLogLines(logLines);
const {
sequenceItems,
tableDataItems,
constraintItems,
indexItems,
fkConstraintItems,
} = _categorizeAndSortByElapsed(foundItems);
console.log(`FK CONSTRAINT total duration : ${_printPrettyTimeElapsed(fkConstraintItems.totalElapsed)}`);
for (let i = 0; i < 3 && fkConstraintItems.operations.length > 0; ++i) {
console.log(`\t${fkConstraintItems.operations[i].operation} : ${_printPrettyTimeElapsed(fkConstraintItems.operations[i].elapsed)}`);
}
console.log(`CONSTRAINT total duration : ${_printPrettyTimeElapsed(constraintItems.totalElapsed)}`);
for (let i = 0; i < 3 && constraintItems.operations.length > 0; ++i) {
console.log(`\t${constraintItems.operations[i].operation} : ${_printPrettyTimeElapsed(constraintItems.operations[i].elapsed)}`);
}
console.log(`INDEX total duration : ${_printPrettyTimeElapsed(indexItems.totalElapsed)}`);
for (let i = 0; i < 3 && indexItems.operations.length > 0; ++i) {
console.log(`\t${indexItems.operations[i].operation} : ${_printPrettyTimeElapsed(indexItems.operations[i].elapsed)}`);
}
console.log(`SEQUENCE total duration : ${_printPrettyTimeElapsed(sequenceItems.totalElapsed)}`);
for (let i = 0; i < 3 && sequenceItems.operations.length > 0; ++i) {
console.log(`\t${sequenceItems.operations[i].operation} : ${_printPrettyTimeElapsed(sequenceItems.operations[i].elapsed)}`);
}
console.log(`TABLE DATA total duration : ${_printPrettyTimeElapsed(tableDataItems.totalElapsed)}`);
for (let i = 0; i < 3 && tableDataItems.operations.length > 0; ++i) {
console.log(`\t${tableDataItems.operations[i].operation} : ${_printPrettyTimeElapsed(tableDataItems.operations[i].elapsed)}`);
}
}
async function main() {
try {
const args = process.argv.slice(2);
const logfile = args[0];
DATE = args[1];
const logs = fs.readFileSync(logfile, 'utf8');
let logLines = logs.split('\n');
logLines = _filterLinesInDate(logLines);
const startBackupTimestamp = _extractTimestampFromContent(logLines, START_BACKUP);
const startReplicationTimestamp = _extractTimestampFromContent(logLines, START_REPLICATION);
const startEnrichmentTimestamp = _extractTimestampFromContent(logLines, START_ENRICHMENT);
const endTimestamp = _extractTimestampFromLogLine(logLines.slice(-1));
console.log(`Durée de récupération du backup: ${_printPrettyTimeElapsedBetweenTwoDates(startBackupTimestamp, startReplicationTimestamp)}`);
console.log(`Durée de réplication: ${_printPrettyTimeElapsedBetweenTwoDates(startReplicationTimestamp, startEnrichmentTimestamp)}`);
console.log(`Durée de l'enrichissement: ${_printPrettyTimeElapsedBetweenTwoDates(startEnrichmentTimestamp, endTimestamp)}`);
console.log(`Durée totale: ${_printPrettyTimeElapsedBetweenTwoDates(startBackupTimestamp, endTimestamp)}`);
_do(logLines);
} catch (error) {
console.error('\n', error);
process.exit(1);
}
}
if (require.main === module) {
main().then(
() => process.exit(0),
(err) => {
console.error(err);
process.exit(1);
},
);
}