diff --git a/jsk_robot_common/jsk_robot_startup/launch/robot_databse_mongo_server.launch b/jsk_robot_common/jsk_robot_startup/launch/robot_databse_mongo_server.launch
new file mode 100644
index 0000000000..9a826b441d
--- /dev/null
+++ b/jsk_robot_common/jsk_robot_startup/launch/robot_databse_mongo_server.launch
@@ -0,0 +1,36 @@
+<launch>
+  <!-- logging database -->
+  <param name="robot/database" value="jsk_robot_lifelog"/>
+
+  <!-- use central data base -->
+  <!-- <arg name="host" default="localhost" /> -->
+  <arg name="host" default="musca.jsk.imi.i.u-tokyo.ac.jp" />
+  <arg name="port" default="27017" />
+
+  <!-- default value -->
+  <arg name="use_daemon" default="true" />
+  <arg name="db_path" default="/var/lib/robot/mongodb_store"/>
+  <arg name="defaults_path" default=""/>
+  <arg name="replicator_dump_path" default="/tmp/replicator_dumps"/>
+  <arg name="queue_size" default="100" />
+  <arg name="use_localdatacenter" default="true" />
+
+  <!-- mongodb_store_inc.launch -->
+  <param name="mongodb_use_daemon" value="$(arg use_daemon)" />
+  <param name="mongodb_port" value="$(arg port)" />
+  <param name="mongodb_host" value="$(arg host)" />
+
+  <node name="config_manager" pkg="mongodb_store" type="config_manager.py" >
+    <param name="defaults_path" value="$(arg defaults_path)"/>
+  </node>
+
+  <node name="message_store" pkg="mongodb_store" type="message_store_node.py" >
+    <param name="mongodb_use_localdatacenter" value="$(arg use_localdatacenter)" />
+    <param name="queue_size" value="$(arg queue_size)" />
+  </node>
+
+  <node name="replicator_node" pkg="mongodb_store" type="replicator_node.py" >
+    <param name="replicator_dump_path" value="$(arg replicator_dump_path)"/>
+  </node>
+
+</launch>
diff --git a/jsk_robot_common/jsk_robot_startup/lifelog/README.md b/jsk_robot_common/jsk_robot_startup/lifelog/README.md
index 7ac192515a..13d5e9125e 100644
--- a/jsk_robot_common/jsk_robot_startup/lifelog/README.md
+++ b/jsk_robot_common/jsk_robot_startup/lifelog/README.md
@@ -85,3 +85,45 @@ Save object detection result to database
 * `~robot_frame` (String, default: `base_footprint`)
 
   robot base tf frame
+
+
+## Examples
+
+You can start a mongodb logging system using `lifelog/mongodb.launch` and `lifelog/common_logger.launch` files.
+ See [jsk_pr2_lifelog/db_client.launch](https://github.com/jsk-ros-pkg/jsk_robot/blob/5d90d483aaa674d33968f34db83f53cd3d018bd4/jsk_pr2_robot/jsk_pr2_startup/jsk_pr2_lifelog/db_client.launch), [fetch_lifelog.xml](https://github.com/jsk-ros-pkg/jsk_robot/blob/921097b7a9c16cd99d0eb8f9f271bda4784dadc5/jsk_fetch_robot/jsk_fetch_startup/launch/fetch_lifelog.xml) and [jsk_baxter_lifelog/db_client.launch](https://github.com/jsk-ros-pkg/jsk_robot/blob/c03dc5af06d8b7786b4212b132047acaa229eb0e/jsk_baxter_robot/jsk_baxter_startup/jsk_baxter_lifelog/db_client.launch) for examples.
+
+## Sample client
+
+Sample program to retrieve stored data can be found at [jsk_robot_startup/scripts/robot_databse_monogo_example.py](./scripts/robot_databse_monogo_example.py).
+
+To connect replicator server (musca), you need to start [jsk_robot_startup/launch/robot_databse_monogo_server.launch](./launch/robot_databse_monogo_server.launch). Please be careful about `ROS_MASTER_URI`, because `robot_databse_monogo_server.launch` will starts same node name as robot system nodes, thus it may corrupt some settings.
+
+## Troubleshooting
+
+If you encounter following error
+```
+[ERROR] [1666693339.502586]: Could not get message store services. Maybe the message store has not been started? Retrying..
+[ERROR] [1666693339.502586]: Could not get message store services. Maybe the message store has not been started? Retrying..
+```
+
+1) Is mongodb service working correctly?
+```
+sudo systemctl status mongodb.service
+sudo systemctl start mongodb.service
+```
+
+2) Is `mongo` command works?
+```
+mongo localhost:27017
+```
+
+3) Check /etc/mongodb.conf
+```
+$ cat /etc/mongodb.conf | grep -v ^#
+dbpath=/var/lib/mongodb
+logpath=/var/log/mongodb/mongodb.log
+logappend=true
+bind_ip = 0.0.0.0
+journal=true
+```
+Default `bind_jp` is `127.0.0.1`, and it not work on some machines, see [#1706](https://github.com/jsk-ros-pkg/jsk_robot/issues/1706) for more info.
diff --git a/jsk_robot_common/jsk_robot_startup/lifelog/common_logger.launch b/jsk_robot_common/jsk_robot_startup/lifelog/common_logger.launch
index 4d53b2e6e4..337b95ba23 100644
--- a/jsk_robot_common/jsk_robot_startup/lifelog/common_logger.launch
+++ b/jsk_robot_common/jsk_robot_startup/lifelog/common_logger.launch
@@ -6,6 +6,7 @@
   <arg name="save_joint_states" default="true" />
   <arg name="save_speech" default="true" />
   <arg name="save_smach" default="true" />
+  <arg name="save_vqa" default="false" />
   <arg name="save_base_trajectory" default="false" />
   <arg name="save_object_detection" default="false" />
   <arg name="save_action" default="false" />
@@ -236,6 +237,18 @@
       </rosparam>
     </node>
 
+    <!-- save mongo data -->
+    <node if="$(arg save_vqa)"
+          name="vqa_logger"
+          pkg="jsk_robot_startup" type="mongo_record.py"
+          machine="$(arg machine)"
+          respawn="$(arg respawn)">
+      <rosparam subst_value="true">
+        topics:
+        - /vqa/caption_result
+      </rosparam>
+    </node>
+
     <!-- base trajecotry logger -->
     <node if="$(arg save_base_trajectory)"
           name="base_trajectory_logger"
diff --git a/jsk_robot_common/jsk_robot_startup/scripts/robot_databse_mongo_dump.py b/jsk_robot_common/jsk_robot_startup/scripts/robot_databse_mongo_dump.py
new file mode 100755
index 0000000000..4f23e1c5f0
--- /dev/null
+++ b/jsk_robot_common/jsk_robot_startup/scripts/robot_databse_mongo_dump.py
@@ -0,0 +1,131 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+#
+# Copied from https://github.com/strands-project/mongodb_store/blob/melodic-devel/mongodb_store/scripts/mongodb_play.py
+#
+from __future__ import print_function
+
+import argparse
+import calendar
+import cv2
+import datetime
+import json
+import mongodb_store.util as mg_util
+import os
+import pymongo
+import rospy
+import sys
+import yaml
+
+from cv_bridge import CvBridge
+from dateutil import tz
+from sensor_msgs.msg import Image, CompressedImage
+
+UTC = tz.gettz('UTC')
+JST = tz.gettz('Asia/Tokyo')
+
+MongoClient = mg_util.import_MongoClient()
+
+TIME_KEY = '_meta.inserted_at'
+
+def max_time(collection):
+    return collection.find_one(sort=[(TIME_KEY, pymongo.DESCENDING)])['_meta']['inserted_at']
+
+def min_time(collection):
+    return collection.find_one(sort=[(TIME_KEY, pymongo.ASCENDING)])['_meta']['inserted_at']
+
+def to_ros_time(dt):
+    return rospy.Time(calendar.timegm(dt.utctimetuple()), dt.microsecond * 1000)
+
+def to_datetime(rt):
+    return datetime.datetime.utcfromtimestamp(rt.secs) + datetime.timedelta(microseconds     = rt.nsecs / 1000)
+
+def ros_time_strftime(rt, format):
+    """ converts a ros time to a datetime and calls strftime on it with the given format """
+    return to_datetime(rt).strftime(format)
+
+def mkdatetime(date_string):
+    return datetime.datetime.strptime(date_string, '%Y-%m-%d %H:%M:%S')
+
+def main(argv):
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--host", default="musca.jsk.imi.i.u-tokyo.ac.jp")
+    parser.add_argument("--port", "-p", default=27017)
+    parser.add_argument("--database", "-d", default="jsk_robot_lifelog")
+    parser.add_argument("--collection", "-c", default="basil")
+    parser.add_argument("--start", "-s", default="", help='start datetime of query, defaults to the earliest date stored in db, across all requested collections. Formatted "Y-m-d H:M" e.g. "2022/07/14 06:38:00"')
+    parser.add_argument("--end", "-e", default="", help='end datetime of query, defaults to the latest date stored in db, across all requested collections. Formatted "Y-m-d H:M" e.g. "2022/07/14 06:39:00"')
+    args = parser.parse_args()
+    bridge = CvBridge()
+
+    print("Connecting ... {}:{}".format(args.host, args.port))
+    mongo_client=MongoClient(args.host, args.port)
+    collection = mongo_client[args.database][args.collection]
+    print("Selected  ... {}/{}".format(args.database,args.collection))
+
+    # make sure there's an index on time in the collection so the sort operation doesn't require the whole collection to be loaded
+    collection.ensure_index(TIME_KEY)
+
+    # get the min and max time across all collections, conver to ros time
+    if args.start:
+        start_time = mkdatetime(args.start).replace(tzinfo=JST)
+    else:
+        start_time = min_time(collection).replace(tzinfo=UTC).astimezone(JST)
+
+    if args.end:
+        end_time = mkdatetime(args.end).replace(tzinfo=JST)
+    else:
+        end_time = max_time(collection).replace(tzinfo=UTC).astimezone(JST)
+
+    print("  From : {}".format(start_time.strftime('%Y-%m-%d %H:%M:%S')))
+    print("  To   : {}".format(end_time.strftime('%Y-%m-%d %H:%M:%S')))
+
+    documents = collection.find({TIME_KEY: { '$gte': start_time, '$lte': end_time}}, sort=[(TIME_KEY, pymongo.ASCENDING)])
+    documents_count = documents.count()
+    print("This document contains {} messages".format(documents_count))
+    # print(documents[0]['_meta']['inserted_at'])
+    # print(documents[documents_count-1]['_meta']['inserted_at'])
+
+    dirname = collection.full_name + start_time.strftime('_%Y-%m-%d_%H:%M:%S_') + end_time.strftime('_%Y-%m-%d_%H:%M:%S')
+    if not os.path.exists(dirname):
+        os.mkdir(dirname)
+    msg_classes = {}
+    for d in documents:
+        stored_class = d['_meta']['stored_class']
+        input_topic = d['_meta']['input_topic']
+        inserted_at = d['_meta']['inserted_at']
+        ros_time = to_ros_time(inserted_at)
+        if stored_class in msg_classes:
+            msg_class = msg_classes[stored_class]
+        else:
+            try:
+                msg_class = msg_classes[stored_class] = mg_util.load_class(stored_class)
+            except ImportError as e:
+                print(";;")
+                print(";; ImportError: {}".format(e))
+                print(";;")
+                print(";; try install ros-{}-{}".format(os.environ['ROS_DISTRO'], stored_class.split('.')[0].replace('_','-')))
+                print(";;")
+                sys.exit(-1)
+        message = mg_util.dictionary_to_message(d, msg_class)
+
+        if type(message) == Image:
+            filename = "{}{}.jpg".format(ros_time.to_nsec(), input_topic.replace('/','-'))
+            image = bridge.imgmsg_to_cv2(message)
+            cv2.imwrite(os.path.join(dirname, filename), image)
+        elif type(message) == CompressedImage:
+            filename = "{}{}.jpg".format(ros_time.to_nsec(), input_topic.replace('/','-'))
+            image = bridge.compressed_imgmsg_to_cv2(message)
+            cv2.imwrite(os.path.join(dirname, filename), image)
+        else:
+            filename = "{}{}.json".format(ros_time.to_nsec(), input_topic.replace('/','-'))
+            with open(os.path.join(dirname, filename), "wb") as f:
+                # f.write(yaml.dump(yaml.load(str(message)), allow_unicode=True))
+                f.write(json.dumps(yaml.load(str(message)), indent=4, ensure_ascii=False))
+        print("Writing.. {} ({})".format(filename, inserted_at))
+
+
+# processes load main so move init_node out
+if __name__ == "__main__":
+    main(sys.argv)
diff --git a/jsk_robot_common/jsk_robot_startup/scripts/robot_databse_mongo_example.py b/jsk_robot_common/jsk_robot_startup/scripts/robot_databse_mongo_example.py
new file mode 100755
index 0000000000..ccd784752f
--- /dev/null
+++ b/jsk_robot_common/jsk_robot_startup/scripts/robot_databse_mongo_example.py
@@ -0,0 +1,109 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import base64
+import numpy as np
+import pickle
+import rospy
+import sys
+
+# date
+from datetime import datetime, timedelta, tzinfo
+from dateutil import tz
+import calendar
+import pytz
+
+# mongo
+from mongodb_store.message_store import MessageStoreProxy
+import mongodb_store.util as MU
+import pymongo
+
+# message
+from jsk_robot_startup.lifelog.logger_base import LoggerBase
+from sensor_msgs.msg import CompressedImage
+from smach_msgs.msg import SmachContainerStatus
+
+# image processing
+from cv_bridge import CvBridge
+import cv2
+
+# global variabels
+JST = tz.gettz('Asia/Tokyo')
+bridge = CvBridge()
+
+# sample functions
+def query_latest_smach():
+    try:
+        rospy.loginfo("Loading last smach execution...")
+        last_msg, _ = msg_store.query(
+            SmachContainerStatus._type,
+            {"info": "START"},
+            single=True,
+            sort_query=[("_meta.inserted_at", pymongo.DESCENDING)]
+        )
+        msgs = msg_store.query(
+            SmachContainerStatus._type,
+            {"header.stamp.secs": {"$gt": last_msg.header.stamp.secs}},
+            sort_query=[("_meta.inserted_at", pymongo.ASCENDING)]
+        )
+
+        def status_to_img(msg):
+            if sys.version_info.major < 3:
+                local_data_str = pickle.loads(msg.local_data)
+            else:
+                local_data_str = pickle.loads(
+                    msg.local_data.encode('utf-8'), encoding='utf-8')
+            print("{} @{}".format(local_data_str['DESCRIPTION'],
+                                  datetime.fromtimestamp(msg.header.stamp.to_sec(), JST)))
+            imgmsg = None
+            if 'IMAGE' in local_data_str and local_data_str['IMAGE']:
+                imgmsg = CompressedImage()
+                imgmsg.deserialize(base64.b64decode(local_data_str['IMAGE']))
+            return imgmsg
+
+        return filter(lambda x: x is not None, map(lambda x: status_to_img(x[0]), msgs))
+    except Exception as e:
+        rospy.logerr('failed to load images from db: %s' % e)
+    return None
+
+
+def query_images(now  = datetime.now(JST)-timedelta(hours=0),
+                 then = datetime.now(JST)-timedelta(hours=1)):
+    try:
+        rospy.loginfo("Loading images...")
+        msgs = msg_store.query(
+            CompressedImage._type,
+            {"_meta.inserted_at": {"$lt": now, "$gte": then}},
+            sort_query=[("_meta.inserted_at", pymongo.ASCENDING)]
+        )
+        return map(lambda x: x[0], msgs)
+    except Exception as e:
+        rospy.logerr('failed to load images from db: %s' % e)
+    return None
+
+if __name__ == '__main__':
+    rospy.init_node('sample_robot_database')
+    db_name = 'jsk_robot_lifelog'
+    col_name = 'basil' # pr1012, fetch17 etc..
+    msg_store = MessageStoreProxy(database=db_name, collection=col_name)
+
+    print("> sample program for robot database")
+    print("> 1: get latest smach data")
+    print("> 2: get last 1 hours image data")
+    #key = int(input("> {1, 2, 3..} : "))
+    key = 2
+
+    if key == 1:
+        msgs = query_latest_smach()
+    elif key == 2:
+        msgs = query_images(then = datetime(2022, 11,  1, 17,  0, tzinfo=JST),
+                            now  = datetime(2022, 11,  1, 20, 10, tzinfo=JST))
+    else:
+        print("unknown inputs...")
+
+    # show data..
+    for msg in msgs:
+        print(" @{}".format(datetime.fromtimestamp(msg.header.stamp.to_sec(), JST)))
+        cv_image = bridge.compressed_imgmsg_to_cv2(msg, "bgr8")
+        cv2.imshow('image', cv_image)
+        cv2.waitKey(50)