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CS4224 MongoDB Project - Team 11

Retrive the project from this github repo

Team members

  • Nguyen Hung Tam A0112059N
  • Bui Do Hiep A0126502U
  • Adrian Bratteby A0175596L

Setup

  1. Make sure that you setup all 5 nodes such that they have passwordless ssh access to each other. It is required that you have node 8 and npm installed. ssh into one server and do following steps
  2. Clone this repo into the home dir of the node. Make sure that the folder is named CS4224-MongoDB. Go inside CS4224-MongoDB folder.
  3. Update the nodes.txt with your nodes ip and hostnames.
  4. Go inside CS4224-MongoDB folder and run
$ npm install
  1. Enable execution for all .sh files. Simply run
$ chmod +x *.sh
  1. Run following command to install mongodb on 5 nodes (mongodb will be installed /temp/mongodb/) and start the shard cluster.
$ ./setup_shards.sh
  1. Run following command to download the data. If you want to test on other set of data, make sure that your data folder is located at home directory and named data before running the command
$ ./prepare_data.sh

Running Experiment

Firstly ssh to one node and go inside CS4224-MongoDB. Run following command

$ ./run.sh <number_clients> <concern_level> <max_transactions>

Where number_clients is either 10, 20 or 40 and concern_level is either local or majority. max_transactions is optional, indicate the maximum number of transactions you want to run, if not specified, then all transactions in the input fill will be executed.

Note that concern_level = local means using local for read concern and 1 for write concern, while concern_level = majority means using majority for both read and write concern.

Logging

All log files are located in ~/log/. Each client will print out in the corresponding test case log folder named ~/log/<numner_clients>-<concern_level>, while the stats file (throughput of clients of the test case) is inside ~/log/<numner_clients>-<concern_level>-stats.txt The summary of the test case is inside ~/log/summary-<numner_clients>-<concern_level>.txt which contains min max average throughput.