Change endpoint from persons to people

backend/apis/nodejs/node_modules/knex/scripts/stress-test/knex-stress-test.js

@@ -0,0 +1,212 @@
+const Knex = require('../../lib');
+
+const toxiproxy = require('toxiproxy-node-client');
+const toxicli = new toxiproxy.Toxiproxy('http://localhost:8474');
+const rp = require('request-promise-native');
+const delay = require('../../lib/execution/internal/delay');
+
+// init instances
+const pg = Knex({
+  client: 'pg',
+  connection:
+    'postgres://postgres:postgresrootpassword@localhost:25432/postgres',
+  pool: { max: 50 },
+});
+
+const pgnative = Knex({
+  client: 'pgnative',
+  connection:
+    'postgres://postgres:postgresrootpassword@localhost:25433/postgres',
+  pool: { max: 50 },
+});
+
+const mysql2 = Knex({
+  client: 'mysql2',
+  connection:
+    'mysql://root:mysqlrootpassword@localhost:23306/?charset=utf8&connectTimeout=500',
+  pool: { max: 50 },
+});
+
+const mysql = Knex({
+  client: 'mysql',
+  connection:
+    'mysql://root:mysqlrootpassword@localhost:23306/?charset=utf8&connectTimeout=500',
+  pool: { max: 50 },
+});
+
+const mssql = Knex({
+  client: 'mssql',
+  connection: {
+    port: 21433,
+    user: 'sa',
+    password: 'S0meVeryHardPassword',
+    server: 'localhost',
+    requestTimeout: 500,
+  },
+  pool: { max: 50 },
+});
+
+/* TODO: figure out how to nicely install oracledb node driver on osx
+const oracledb = Knex({
+  client: 'oracledb',
+  connection: {
+    user          : "travis",
+    password      : "travis",
+    connectString : "localhost/XE",
+    // https://github.com/oracle/node-oracledb/issues/525
+    stmtCacheSize : 0
+  },
+  pool: { max: 50 }
+});
+*/
+
+const counters = {};
+
+function setQueryCounters(instance, name) {
+  const counts = (counters[name] = { queries: 0, results: 0, errors: 0 });
+  instance.on('query', () => (counts.queries += 1));
+  instance.on('query-response', () => (counts.results += 1));
+  instance.on('query-error', () => (counts.errors += 1));
+}
+
+setQueryCounters(pg, 'pg');
+setQueryCounters(mysql, 'mysql');
+setQueryCounters(mysql2, 'mysql2');
+setQueryCounters(mssql, 'mssql');
+
+const _ = require('lodash');
+
+// start printing out counters
+let lastCounters = _.cloneDeep(counters);
+
+setInterval(() => {
+  const reqsPerSec = {};
+  for (const key of Object.keys(counters)) {
+    reqsPerSec[key] = {
+      queries: (counters[key].queries - lastCounters[key].queries) / 2,
+      results: (counters[key].results - lastCounters[key].results) / 2,
+      errors: (counters[key].errors - lastCounters[key].errors) / 2,
+    };
+  }
+  console.log(
+    '------------------------ STATS PER SECOND ------------------------'
+  );
+  console.dir(reqsPerSec, { colors: true });
+  console.log(
+    '------------------------------- EOS ------------------------------'
+  );
+  lastCounters = _.cloneDeep(counters);
+}, 2000);
+
+async function killConnectionsPg(client) {
+  return client.raw(`SELECT pg_terminate_backend(pg_stat_activity.pid)
+    FROM pg_stat_activity
+    WHERE pg_stat_activity.datname = 'postgres'
+      AND pid <> pg_backend_pid()`);
+}
+
+async function killConnectionsMyslq(client) {
+  const [rows] = await client.raw(`SHOW FULL PROCESSLIST`);
+  await Promise.all(rows.map((row) => client.raw(`KILL ${row.Id}`)));
+}
+
+async function killConnectionsMssql() {
+  const rows = await mssql('sys.dm_exec_sessions').select('session_id');
+  await Promise.all(rows.map((row) => mssql.raw(`KILL ${row.session_id}`)));
+}
+
+async function main() {
+  async function loopQueries(prefix, query) {
+    const queries = () => [...Array(50).fill(query)];
+
+    // eslint-disable-next-line no-constant-condition
+    while (true) {
+      try {
+        await Promise.all(queries());
+      } catch (err) {
+        console.log(prefix, err);
+      }
+    }
+  }
+
+  async function recreateProxy(serviceName, listenPort, proxyToPort) {
+    try {
+      await rp.delete({
+        url: `${toxicli.host}/proxies/${serviceName}`,
+      });
+    } catch (err) {
+      /* empty */
+    }
+
+    const proxy = await toxicli.createProxy({
+      name: serviceName,
+      listen: `0.0.0.0:${listenPort}`,
+      upstream: `${serviceName}:${proxyToPort}`,
+    });
+
+    // add some latency
+    await proxy.addToxic(
+      new toxiproxy.Toxic(proxy, {
+        type: 'latency',
+        attributes: { latency: 1, jitter: 1 },
+      })
+    );
+
+    // cause connections to be closed every 500 bytes
+    await proxy.addToxic(
+      new toxiproxy.Toxic(proxy, {
+        type: 'limit_data',
+        attributes: { bytes: 5000 },
+      })
+    );
+  }
+
+  // create TCP proxies for simulating bad connections etc.
+  async function recreateProxies() {
+    await recreateProxy('postgresql', 25432, 5432);
+    await recreateProxy('postgresql', 25433, 5433);
+    await recreateProxy('mysql', 23306, 3306);
+    await recreateProxy('oracledb', 21521, 1521);
+    await recreateProxy('mssql', 21433, 1433);
+  }
+
+  await recreateProxies();
+
+  loopQueries('PSQL:', pg.raw('select 1'));
+  loopQueries('PSQL TO:', pg.raw('select 1').timeout(20));
+
+  loopQueries('PGNATIVE:', pgnative.raw('select 1'));
+  loopQueries('PGNATIVE TO:', pgnative.raw('select 1').timeout(20));
+
+  loopQueries('MYSQL:', mysql.raw('select 1'));
+  loopQueries('MYSQL TO:', mysql.raw('select 1').timeout(20));
+
+  // mysql2 still crashes app (without connection killer nor timeouts)
+  // https://github.com/sidorares/node-mysql2/issues/731
+  //  loopQueries('MYSQL2:', mysql2.raw('select 1'));
+  //  loopQueries('MYSQL2 TO:', mysql2.raw('select 1').timeout(20));
+
+  loopQueries('MSSQL:', mssql.raw('select 1'));
+  loopQueries('MSSQL TO:', mssql.raw('select 1').timeout(20));
+
+  setInterval(recreateProxies, 2000);
+
+  // eslint-disable-next-line no-constant-condition
+  while (true) {
+    await delay(20); // kill everything every quite often from server side
+    try {
+      await Promise.all([
+        killConnectionsPg(pg),
+        killConnectionsPg(pgnative),
+        killConnectionsMyslq(mysql),
+        //        killConnectionsMyslq(mysql2),
+        killConnectionsMssql(),
+      ]);
+    } catch (err) {
+      console.log('KILLER ERROR:', err);
+    }
+  }
+}
+
+process.on('exit', () => console.log('- STATS PRINT NEAR END LOGS ')); // marker for grep...
+main();