diff --git a/packages/hydrooj/package.json b/packages/hydrooj/package.json
index e5cf030c..f5a323d7 100644
--- a/packages/hydrooj/package.json
+++ b/packages/hydrooj/package.json
@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "4.0.2",
+    "version": "4.0.3",
     "bin": "bin/hydrooj.js",
     "main": "src/plugin-api",
     "module": "src/plugin-api",
diff --git a/packages/hydrooj/src/handler/judge.ts b/packages/hydrooj/src/handler/judge.ts
index b7c13570..08c600e9 100644
--- a/packages/hydrooj/src/handler/judge.ts
+++ b/packages/hydrooj/src/handler/judge.ts
@@ -1,5 +1,6 @@
 import assert from 'assert';
 import yaml from 'js-yaml';
+import { omit } from 'lodash';
 import { ObjectID } from 'mongodb';
 import {
     JudgeResultBody, ProblemConfigFile, RecordDoc, TestCase,
@@ -209,7 +210,7 @@ class JudgeConnectionHandler extends ConnectionHandler {
     }
 
     async message(msg) {
-        if (msg.key !== 'ping' && msg.key !== 'prio') logger[['status', 'next'].includes(msg.key) ? 'debug' : 'info']('%o', msg);
+        if (msg.key !== 'ping' && msg.key !== 'prio') logger[['status', 'next'].includes(msg.key) ? 'debug' : 'info']('%o', omit(msg, 'key'));
         if (msg.key === 'next') await next(msg);
         else if (msg.key === 'end') {
             if (!msg.nop) await end({ judger: this.user._id, ...msg }).catch((e) => logger.error(e));
diff --git a/packages/hydrooj/src/handler/record.ts b/packages/hydrooj/src/handler/record.ts
index 4a03611d..23ddf5c0 100644
--- a/packages/hydrooj/src/handler/record.ts
+++ b/packages/hydrooj/src/handler/record.ts
@@ -1,4 +1,4 @@
-import { debounce, omit } from 'lodash';
+import { omit, throttle } from 'lodash';
 import { FilterQuery, ObjectID } from 'mongodb';
 import {
     ContestNotAttendedError, ContestNotFoundError, ForbiddenError, PermissionError,
@@ -303,7 +303,7 @@ class RecordDetailConnectionHandler extends ConnectionHandler {
     cleanup: bus.Disposable = () => { };
     rid: string = '';
     disconnectTimeout: NodeJS.Timeout;
-    debounceSend: any;
+    throttleSend: any;
 
     @param('rid', Types.ObjectID)
     async prepare(domainId: string, rid: ObjectID) {
@@ -334,7 +334,7 @@ class RecordDetailConnectionHandler extends ConnectionHandler {
             if (!problem.canViewBy(pdoc, this.user)) throw new PermissionError(PERM.PERM_VIEW_PROBLEM_HIDDEN);
         }
 
-        this.debounceSend = debounce(this.send, 1000);
+        this.throttleSend = throttle(this.send, 1000);
         this.rid = rid.toString();
         this.cleanup = bus.on('record/change', this.onRecordChange.bind(this));
         this.onRecordChange(rdoc);
@@ -359,7 +359,7 @@ class RecordDetailConnectionHandler extends ConnectionHandler {
         if (![STATUS.STATUS_WAITING, STATUS.STATUS_JUDGING, STATUS.STATUS_COMPILING, STATUS.STATUS_FETCHED].includes(rdoc.status)) {
             this.sendUpdate(rdoc);
             this.disconnectTimeout = setTimeout(() => this.close(4001, 'Ended'), 30000);
-        } else this.debounceSend(rdoc);
+        } else this.throttleSend(rdoc);
     }
 }
 
diff --git a/packages/utils/lib/utils.ts b/packages/utils/lib/utils.ts
index 7ca8f1e9..6f4c1ced 100644
--- a/packages/utils/lib/utils.ts
+++ b/packages/utils/lib/utils.ts
@@ -9,11 +9,11 @@ import { ObjectID } from 'mongodb';
 import Logger from 'reggol';
 
 Logger.levels.base = process.env.DEV ? 3 : 2;
-Logger.targets[0].showTime = 'MM/dd hh:mm:ss';
+Logger.targets[0].showTime = 'dd hh:mm:ss';
 Logger.targets[0].label = {
     align: 'right',
-    width: 10,
-    margin: 2,
+    width: 9,
+    margin: 1,
 };
 
 export { Logger };