Merge pull request #1121 from nymkappa/feature/database-migration-update
Wrap migration with transactions
This commit is contained in:
wiz
GitHub
commit
a9c1dc3726
@ -1,62 +1,144 @@
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import { PoolConnection } from 'mysql2/promise';
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import config from '../config';
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import { DB } from '../database';
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import logger from '../logger';
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const sleep = (ms: number) => new Promise( res => setTimeout(res, ms));
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class DatabaseMigration {
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private static currentVersion = 2;
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private queryTimeout = 120000;
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private statisticsAddedIndexed = false;
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constructor() { }
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/**
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* Entry point
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*/
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public async $initializeOrMigrateDatabase(): Promise<void> {
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if (!await this.$checkIfTableExists('statistics')) {
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await this.$initializeDatabaseTables();
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logger.info('MIGRATIONS: Running migrations');
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await this.$printDatabaseVersion();
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// First of all, if the `state` database does not exist, create it so we can track migration version
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if (!await this.$checkIfTableExists('state')) {
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logger.info('MIGRATIONS: `state` table does not exist. Creating it.');
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try {
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await this.$createMigrationStateTable();
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} catch (e) {
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logger.err('MIGRATIONS: Unable to create `state` table, aborting in 10 seconds. ' + e);
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await sleep(10000);
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process.exit(-1);
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}
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logger.info('MIGRATIONS: `state` table initialized.');
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}
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let databaseSchemaVersion = 0;
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try {
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databaseSchemaVersion = await this.$getSchemaVersionFromDatabase();
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} catch (e) {
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logger.err('MIGRATIONS: Unable to get current database migration version, aborting in 10 seconds. ' + e);
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await sleep(10000);
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process.exit(-1);
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}
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logger.info('MIGRATIONS: Current state.schema_version ' + databaseSchemaVersion);
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logger.info('MIGRATIONS: Latest DatabaseMigration.version is ' + DatabaseMigration.currentVersion);
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if (databaseSchemaVersion >= DatabaseMigration.currentVersion) {
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logger.info('MIGRATIONS: Nothing to do.');
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return;
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}
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// Now, create missing tables. Those queries cannot be wrapped into a transaction unfortunately
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try {
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await this.$createMissingTablesAndIndexes(databaseSchemaVersion);
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} catch (e) {
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logger.err('MIGRATIONS: Unable to create required tables, aborting in 10 seconds. ' + e);
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await sleep(10000);
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process.exit(-1);
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}
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if (await this.$checkIfTableExists('state')) {
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const databaseSchemaVersion = await this.$getSchemaVersionFromDatabase();
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if (DatabaseMigration.currentVersion > databaseSchemaVersion) {
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logger.info('MIGRATIONS: Upgrading datababse schema');
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try {
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await this.$migrateTableSchemaFromVersion(databaseSchemaVersion);
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}
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} else {
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await this.$migrateTableSchemaFromVersion(0);
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logger.info(`MIGRATIONS: OK. Database schema have been migrated from version ${databaseSchemaVersion} to ${DatabaseMigration.currentVersion} (latest version)`);
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} catch (e) {
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logger.err('MIGRATIONS: Unable to migrate database, aborting. ' + e);
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}
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}
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private async $initializeDatabaseTables(): Promise<void> {
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return;
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}
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/**
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* Create all missing tables
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*/
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private async $createMissingTablesAndIndexes(databaseSchemaVersion: number) {
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await this.$setStatisticsAddedIndexedFlag(databaseSchemaVersion);
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const connection = await DB.pool.getConnection();
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for (const query of this.getInitializeTableQueries()) {
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await connection.query<any>({ sql: query, timeout: this.queryTimeout });
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try {
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await this.$executeQuery(connection, this.getCreateElementsTableQuery(), await this.$checkIfTableExists('elements_pegs'));
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await this.$executeQuery(connection, this.getCreateStatisticsQuery(), await this.$checkIfTableExists('statistics'));
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if (databaseSchemaVersion < 2 && this.statisticsAddedIndexed === false) {
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await this.$executeQuery(connection, `CREATE INDEX added ON statistics (added);`);
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}
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connection.release();
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logger.info(`Initial database tables have been created`);
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}
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private async $migrateTableSchemaFromVersion(version: number): Promise<void> {
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const connection = await DB.pool.getConnection();
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for (const query of this.getMigrationQueriesFromVersion(version)) {
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await connection.query<any>({ sql: query, timeout: this.queryTimeout });
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}
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} catch (e) {
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connection.release();
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await this.$updateToLatestSchemaVersion();
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logger.info(`Database schema have been migrated from version ${version} to ${DatabaseMigration.currentVersion} (latest version)`);
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throw e;
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}
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}
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private async $getSchemaVersionFromDatabase(): Promise<number> {
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const connection = await DB.pool.getConnection();
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const query = `SELECT number FROM state WHERE name = 'schema_version';`;
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const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
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connection.release();
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return rows[0]['number'];
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/**
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* Special case here for the `statistics` table - It appeared that somehow some dbs already had the `added` field indexed
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* while it does not appear in previous schemas. The mariadb command "CREATE INDEX IF NOT EXISTS" is not supported on
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* older mariadb version. Therefore we set a flag here in order to know if the index needs to be created or not before
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* running the migration process
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*/
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private async $setStatisticsAddedIndexedFlag(databaseSchemaVersion: number) {
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if (databaseSchemaVersion >= 2) {
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this.statisticsAddedIndexed = true;
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return;
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}
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private async $updateToLatestSchemaVersion(): Promise<void> {
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const connection = await DB.pool.getConnection();
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const query = `UPDATE state SET number = ${DatabaseMigration.currentVersion} WHERE name = 'schema_version'`;
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const [rows] = await connection.query<any>({ sql: query, timeout: this.queryTimeout });
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try {
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// We don't use "CREATE INDEX IF NOT EXISTS" because it is not supported on old mariadb version 5.X
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const query = `SELECT COUNT(1) hasIndex FROM INFORMATION_SCHEMA.STATISTICS
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WHERE table_schema=DATABASE() AND table_name='statistics' AND index_name='added';`;
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const [rows] = await this.$executeQuery(connection, query, true);
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if (rows[0].hasIndex === 0) {
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logger.info('MIGRATIONS: `statistics.added` is not indexed');
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this.statisticsAddedIndexed = false;
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} else if (rows[0].hasIndex === 1) {
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logger.info('MIGRATIONS: `statistics.added` is already indexed');
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this.statisticsAddedIndexed = true;
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}
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} catch (e) {
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// Should really never happen but just in case it fails, we just don't execute
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// any query related to this indexing so it won't fail if the index actually already exists
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logger.err('MIGRATIONS: Unable to check if `statistics.added` INDEX exist or not.');
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this.statisticsAddedIndexed = true;
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}
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connection.release();
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}
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/**
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* Small query execution wrapper to log all executed queries
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*/
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private async $executeQuery(connection: PoolConnection, query: string, silent: boolean = false): Promise<any> {
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if (!silent) {
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logger.info('MIGRATIONS: Execute query:\n' + query);
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}
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return connection.query<any>({ sql: query, timeout: this.queryTimeout });
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}
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/**
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* Check if 'table' exists in the database
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*/
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private async $checkIfTableExists(table: string): Promise<boolean> {
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const connection = await DB.pool.getConnection();
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const query = `SELECT COUNT(*) FROM information_schema.tables WHERE table_schema = '${config.DATABASE.DATABASE}' AND TABLE_NAME = '${table}'`;
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@ -65,11 +147,132 @@ class DatabaseMigration {
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return rows[0]['COUNT(*)'] === 1;
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}
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private getInitializeTableQueries(): string[] {
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/**
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* Get current database version
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*/
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private async $getSchemaVersionFromDatabase(): Promise<number> {
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const connection = await DB.pool.getConnection();
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const query = `SELECT number FROM state WHERE name = 'schema_version';`;
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const [rows] = await this.$executeQuery(connection, query, true);
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connection.release();
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return rows[0]['number'];
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}
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/**
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* Create the `state` table
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*/
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private async $createMigrationStateTable(): Promise<void> {
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const connection = await DB.pool.getConnection();
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try {
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const query = `CREATE TABLE IF NOT EXISTS state (
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name varchar(25) NOT NULL,
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number int(11) NULL,
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string varchar(100) NULL,
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CONSTRAINT name_unique UNIQUE (name)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8;`;
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await this.$executeQuery(connection, query);
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// Set initial values
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await this.$executeQuery(connection, `INSERT INTO state VALUES('schema_version', 0, NULL);`);
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await this.$executeQuery(connection, `INSERT INTO state VALUES('last_elements_block', 0, NULL);`);
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connection.release();
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} catch (e) {
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connection.release();
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throw e;
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}
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}
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/**
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* We actually execute the migrations queries here
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*/
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private async $migrateTableSchemaFromVersion(version: number): Promise<void> {
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const transactionQueries: string[] = [];
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for (const query of this.getMigrationQueriesFromVersion(version)) {
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transactionQueries.push(query);
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}
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transactionQueries.push(this.getUpdateToLatestSchemaVersionQuery());
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const connection = await DB.pool.getConnection();
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try {
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await this.$executeQuery(connection, 'START TRANSACTION;');
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await this.$executeQuery(connection, 'SET autocommit = 0;');
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for (const query of transactionQueries) {
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await this.$executeQuery(connection, query);
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}
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await this.$executeQuery(connection, 'COMMIT;');
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connection.release();
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} catch (e) {
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await this.$executeQuery(connection, 'ROLLBACK;');
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connection.release();
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throw e;
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}
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}
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/**
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* Generate migration queries based on schema version
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*/
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private getMigrationQueriesFromVersion(version: number): string[] {
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const queries: string[] = [];
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queries.push(`CREATE TABLE IF NOT EXISTS statistics (
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id int(11) NOT NULL,
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if (version < 1) {
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if (config.MEMPOOL.NETWORK !== 'liquid' && config.MEMPOOL.NETWORK !== 'liquidtestnet') {
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queries.push(this.getShiftStatisticsQuery());
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}
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}
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return queries;
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}
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/**
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* Save the schema version in the database
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*/
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private getUpdateToLatestSchemaVersionQuery(): string {
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return `UPDATE state SET number = ${DatabaseMigration.currentVersion} WHERE name = 'schema_version';`;
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}
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/**
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* Print current database version
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*/
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private async $printDatabaseVersion() {
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const connection = await DB.pool.getConnection();
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try {
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const [rows] = await this.$executeQuery(connection, 'SELECT VERSION() as version;', true);
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logger.info(`MIGRATIONS: Database engine version '${rows[0].version}'`);
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} catch (e) {
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logger.info(`MIGRATIONS: Could not fetch database engine version. ` + e);
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}
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connection.release();
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}
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// Couple of wrappers to clean the main logic
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private getShiftStatisticsQuery(): string {
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return `UPDATE statistics SET
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vsize_1 = vsize_1 + vsize_2, vsize_2 = vsize_3,
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vsize_3 = vsize_4, vsize_4 = vsize_5,
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vsize_5 = vsize_6, vsize_6 = vsize_8,
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vsize_8 = vsize_10, vsize_10 = vsize_12,
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vsize_12 = vsize_15, vsize_15 = vsize_20,
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vsize_20 = vsize_30, vsize_30 = vsize_40,
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vsize_40 = vsize_50, vsize_50 = vsize_60,
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vsize_60 = vsize_70, vsize_70 = vsize_80,
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vsize_80 = vsize_90, vsize_90 = vsize_100,
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vsize_100 = vsize_125, vsize_125 = vsize_150,
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vsize_150 = vsize_175, vsize_175 = vsize_200,
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vsize_200 = vsize_250, vsize_250 = vsize_300,
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vsize_300 = vsize_350, vsize_350 = vsize_400,
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vsize_400 = vsize_500, vsize_500 = vsize_600,
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vsize_600 = vsize_700, vsize_700 = vsize_800,
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vsize_800 = vsize_900, vsize_900 = vsize_1000,
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vsize_1000 = vsize_1200, vsize_1200 = vsize_1400,
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vsize_1400 = vsize_1800, vsize_1800 = vsize_2000, vsize_2000 = 0;`;
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}
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private getCreateStatisticsQuery(): string {
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return `CREATE TABLE IF NOT EXISTS statistics (
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id int(11) NOT NULL AUTO_INCREMENT,
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added datetime NOT NULL,
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unconfirmed_transactions int(11) UNSIGNED NOT NULL,
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tx_per_second float UNSIGNED NOT NULL,
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@ -114,42 +317,13 @@ class DatabaseMigration {
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vsize_1400 int(11) NOT NULL,
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vsize_1600 int(11) NOT NULL,
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vsize_1800 int(11) NOT NULL,
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vsize_2000 int(11) NOT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=utf8;`);
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queries.push(`ALTER TABLE statistics ADD PRIMARY KEY (id);`);
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queries.push(`ALTER TABLE statistics MODIFY id int(11) NOT NULL AUTO_INCREMENT;`);
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return queries;
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vsize_2000 int(11) NOT NULL,
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CONSTRAINT PRIMARY KEY (id)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8;`;
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}
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private getMigrationQueriesFromVersion(version: number): string[] {
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const queries: string[] = [];
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if (version < 1) {
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if (config.MEMPOOL.NETWORK !== 'liquid' && config.MEMPOOL.NETWORK !== 'liquidtestnet') {
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queries.push(`UPDATE statistics SET
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vsize_1 = vsize_1 + vsize_2, vsize_2 = vsize_3,
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vsize_3 = vsize_4, vsize_4 = vsize_5,
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vsize_5 = vsize_6, vsize_6 = vsize_8,
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vsize_8 = vsize_10, vsize_10 = vsize_12,
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vsize_12 = vsize_15, vsize_15 = vsize_20,
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vsize_20 = vsize_30, vsize_30 = vsize_40,
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vsize_40 = vsize_50, vsize_50 = vsize_60,
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vsize_60 = vsize_70, vsize_70 = vsize_80,
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vsize_80 = vsize_90, vsize_90 = vsize_100,
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vsize_100 = vsize_125, vsize_125 = vsize_150,
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vsize_150 = vsize_175, vsize_175 = vsize_200,
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vsize_200 = vsize_250, vsize_250 = vsize_300,
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vsize_300 = vsize_350, vsize_350 = vsize_400,
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vsize_400 = vsize_500, vsize_500 = vsize_600,
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vsize_600 = vsize_700, vsize_700 = vsize_800,
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vsize_800 = vsize_900, vsize_900 = vsize_1000,
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vsize_1000 = vsize_1200, vsize_1200 = vsize_1400,
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vsize_1400 = vsize_1800, vsize_1800 = vsize_2000, vsize_2000 = 0`);
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}
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queries.push(`CREATE TABLE IF NOT EXISTS elements_pegs (
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private getCreateElementsTableQuery(): string {
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return `CREATE TABLE IF NOT EXISTS elements_pegs (
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block int(11) NOT NULL,
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datetime int(11) NOT NULL,
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amount bigint(20) NOT NULL,
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@ -159,23 +333,7 @@ class DatabaseMigration {
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bitcointxid varchar(65) NOT NULL,
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bitcoinindex int(11) NOT NULL,
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final_tx int(11) NOT NULL
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) ENGINE=InnoDB DEFAULT CHARSET=utf8;`);
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queries.push(`CREATE TABLE IF NOT EXISTS state (
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name varchar(25) NOT NULL,
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number int(11) NULL,
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string varchar(100) NULL
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) ENGINE=InnoDB DEFAULT CHARSET=utf8;`);
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queries.push(`INSERT INTO state VALUES('schema_version', 0, NULL);`);
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queries.push(`INSERT INTO state VALUES('last_elements_block', 0, NULL);`);
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}
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if (version < 2) {
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queries.push(`CREATE INDEX IF NOT EXISTS added ON statistics (added);`);
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}
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return queries;
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) ENGINE=InnoDB DEFAULT CHARSET=utf8;`;
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}
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}
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@ -270,47 +270,47 @@ class Statistics {
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private getQueryForDaysAvg(div: number, interval: string) {
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return `SELECT id, UNIX_TIMESTAMP(added) as added,
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CAST(avg(unconfirmed_transactions) as FLOAT) as unconfirmed_transactions,
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CAST(avg(tx_per_second) as FLOAT) as tx_per_second,
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CAST(avg(vbytes_per_second) as FLOAT) as vbytes_per_second,
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CAST(avg(vsize_1) as FLOAT) as vsize_1,
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CAST(avg(vsize_2) as FLOAT) as vsize_2,
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CAST(avg(vsize_3) as FLOAT) as vsize_3,
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CAST(avg(vsize_4) as FLOAT) as vsize_4,
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CAST(avg(vsize_5) as FLOAT) as vsize_5,
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CAST(avg(vsize_6) as FLOAT) as vsize_6,
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CAST(avg(vsize_8) as FLOAT) as vsize_8,
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CAST(avg(vsize_10) as FLOAT) as vsize_10,
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CAST(avg(vsize_12) as FLOAT) as vsize_12,
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CAST(avg(vsize_15) as FLOAT) as vsize_15,
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CAST(avg(vsize_20) as FLOAT) as vsize_20,
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CAST(avg(vsize_30) as FLOAT) as vsize_30,
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CAST(avg(vsize_40) as FLOAT) as vsize_40,
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CAST(avg(vsize_50) as FLOAT) as vsize_50,
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CAST(avg(vsize_60) as FLOAT) as vsize_60,
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CAST(avg(vsize_70) as FLOAT) as vsize_70,
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CAST(avg(vsize_80) as FLOAT) as vsize_80,
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CAST(avg(vsize_90) as FLOAT) as vsize_90,
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CAST(avg(vsize_100) as FLOAT) as vsize_100,
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CAST(avg(vsize_125) as FLOAT) as vsize_125,
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CAST(avg(vsize_150) as FLOAT) as vsize_150,
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CAST(avg(vsize_175) as FLOAT) as vsize_175,
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CAST(avg(vsize_200) as FLOAT) as vsize_200,
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CAST(avg(vsize_250) as FLOAT) as vsize_250,
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CAST(avg(vsize_300) as FLOAT) as vsize_300,
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||||
CAST(avg(vsize_350) as FLOAT) as vsize_350,
|
||||
CAST(avg(vsize_400) as FLOAT) as vsize_400,
|
||||
CAST(avg(vsize_500) as FLOAT) as vsize_500,
|
||||
CAST(avg(vsize_600) as FLOAT) as vsize_600,
|
||||
CAST(avg(vsize_700) as FLOAT) as vsize_700,
|
||||
CAST(avg(vsize_800) as FLOAT) as vsize_800,
|
||||
CAST(avg(vsize_900) as FLOAT) as vsize_900,
|
||||
CAST(avg(vsize_1000) as FLOAT) as vsize_1000,
|
||||
CAST(avg(vsize_1200) as FLOAT) as vsize_1200,
|
||||
CAST(avg(vsize_1400) as FLOAT) as vsize_1400,
|
||||
CAST(avg(vsize_1600) as FLOAT) as vsize_1600,
|
||||
CAST(avg(vsize_1800) as FLOAT) as vsize_1800,
|
||||
CAST(avg(vsize_2000) as FLOAT) as vsize_2000 \
|
||||
CAST(avg(unconfirmed_transactions) as DOUBLE) as unconfirmed_transactions,
|
||||
CAST(avg(tx_per_second) as DOUBLE) as tx_per_second,
|
||||
CAST(avg(vbytes_per_second) as DOUBLE) as vbytes_per_second,
|
||||
CAST(avg(vsize_1) as DOUBLE) as vsize_1,
|
||||
CAST(avg(vsize_2) as DOUBLE) as vsize_2,
|
||||
CAST(avg(vsize_3) as DOUBLE) as vsize_3,
|
||||
CAST(avg(vsize_4) as DOUBLE) as vsize_4,
|
||||
CAST(avg(vsize_5) as DOUBLE) as vsize_5,
|
||||
CAST(avg(vsize_6) as DOUBLE) as vsize_6,
|
||||
CAST(avg(vsize_8) as DOUBLE) as vsize_8,
|
||||
CAST(avg(vsize_10) as DOUBLE) as vsize_10,
|
||||
CAST(avg(vsize_12) as DOUBLE) as vsize_12,
|
||||
CAST(avg(vsize_15) as DOUBLE) as vsize_15,
|
||||
CAST(avg(vsize_20) as DOUBLE) as vsize_20,
|
||||
CAST(avg(vsize_30) as DOUBLE) as vsize_30,
|
||||
CAST(avg(vsize_40) as DOUBLE) as vsize_40,
|
||||
CAST(avg(vsize_50) as DOUBLE) as vsize_50,
|
||||
CAST(avg(vsize_60) as DOUBLE) as vsize_60,
|
||||
CAST(avg(vsize_70) as DOUBLE) as vsize_70,
|
||||
CAST(avg(vsize_80) as DOUBLE) as vsize_80,
|
||||
CAST(avg(vsize_90) as DOUBLE) as vsize_90,
|
||||
CAST(avg(vsize_100) as DOUBLE) as vsize_100,
|
||||
CAST(avg(vsize_125) as DOUBLE) as vsize_125,
|
||||
CAST(avg(vsize_150) as DOUBLE) as vsize_150,
|
||||
CAST(avg(vsize_175) as DOUBLE) as vsize_175,
|
||||
CAST(avg(vsize_200) as DOUBLE) as vsize_200,
|
||||
CAST(avg(vsize_250) as DOUBLE) as vsize_250,
|
||||
CAST(avg(vsize_300) as DOUBLE) as vsize_300,
|
||||
CAST(avg(vsize_350) as DOUBLE) as vsize_350,
|
||||
CAST(avg(vsize_400) as DOUBLE) as vsize_400,
|
||||
CAST(avg(vsize_500) as DOUBLE) as vsize_500,
|
||||
CAST(avg(vsize_600) as DOUBLE) as vsize_600,
|
||||
CAST(avg(vsize_700) as DOUBLE) as vsize_700,
|
||||
CAST(avg(vsize_800) as DOUBLE) as vsize_800,
|
||||
CAST(avg(vsize_900) as DOUBLE) as vsize_900,
|
||||
CAST(avg(vsize_1000) as DOUBLE) as vsize_1000,
|
||||
CAST(avg(vsize_1200) as DOUBLE) as vsize_1200,
|
||||
CAST(avg(vsize_1400) as DOUBLE) as vsize_1400,
|
||||
CAST(avg(vsize_1600) as DOUBLE) as vsize_1600,
|
||||
CAST(avg(vsize_1800) as DOUBLE) as vsize_1800,
|
||||
CAST(avg(vsize_2000) as DOUBLE) as vsize_2000 \
|
||||
FROM statistics \
|
||||
WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW() \
|
||||
GROUP BY UNIX_TIMESTAMP(added) DIV ${div} \
|
||||
@ -320,7 +320,7 @@ class Statistics {
|
||||
private getQueryForDays(div: number, interval: string) {
|
||||
return `SELECT id, UNIX_TIMESTAMP(added) as added, unconfirmed_transactions,
|
||||
tx_per_second,
|
||||
CAST(avg(vbytes_per_second) as FLOAT) as vbytes_per_second,
|
||||
CAST(avg(vbytes_per_second) as DOUBLE) as vbytes_per_second,
|
||||
vsize_1,
|
||||
vsize_2,
|
||||
vsize_3,
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user