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added sync mutex for consistency checks and backup

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This commit is contained in:
azivner
2018-01-04 21:37:36 -05:00
parent a6a687c4a6
commit 663bd1a8fe
7 changed files with 61 additions and 40 deletions
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23
services/backup.js
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@@ -6,6 +6,7 @@ const fs = require('fs-extra');
const dataDir = require('./data_dir');
const log = require('./log');
const sql = require('./sql');
const sync_mutex = require('./sync_mutex');
async function regularBackup() {
const now = new Date();
@@ -21,17 +22,25 @@ async function regularBackup() {
}
async function backupNow() {
const now = utils.nowDate();
// we don't want to backup DB in the middle of sync with potentially inconsistent DB state
const releaseMutex = await sync_mutex.acquire();
const backupFile = dataDir.BACKUP_DIR + "/" + "backup-" + utils.getDateTimeForFile() + ".db";
try {
const now = utils.nowDate();
fs.copySync(dataDir.DOCUMENT_PATH, backupFile);
const backupFile = dataDir.BACKUP_DIR + "/" + "backup-" + utils.getDateTimeForFile() + ".db";
log.info("Created backup at " + backupFile);
fs.copySync(dataDir.DOCUMENT_PATH, backupFile);
await sql.doInTransaction(async () => {
await options.setOption('last_backup_date', now);
});
log.info("Created backup at " + backupFile);
await sql.doInTransaction(async () => {
await options.setOption('last_backup_date', now);
});
}
finally {
releaseMutex();
}
}
async function cleanupOldBackups() {