CSCI 5408 Group Project – Building a simple and portable distributed database, DDBMS, and analytics systems solution

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Description

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Project Objective:
By completing this project, a student will be able to describe concepts in modelling notation (e.g.,
Entity-Relation Diagrams or UML) and how they would be used. A student will be able to describe
the most common designs for core database system components including the query optimizer,
query executor, storage manager, access methods, and transaction processor. By completing this
task, a student will be able to explain the techniques used for data replication, allocation during the
database design process, and data analytics
In this project, each group is required to create a light-weight distributed database management
system (e.g. metadata management, data structure design, data storing, retrieval, building database
and logs, analysis, and security), with custom database structure for in memory operations using
various data structures such as Arrays, Tree, Linked Lists etc., and custom file design for persistent
storage.
Plagiarism Policy:
• This project is a group task. Collaboration of any type (outside the assigned group) amounts to
a violation of the academic integrity policy and will be reported to the AIO.
• Content cannot be copied verbatim from any source(s). Please understand the concept and
write in your own words. In addition, cite the actual source. Failing to do so will be considered
as plagiarism and/or cheating.
• The Dalhousie Academic Integrity policy applies to all material submitted as part of this course.
Please understand the policy, which is available at:
https://www.dal.ca/dept/university_secretariat/academic-integrity.html
Project Rubric:
Based on the discussion board rubric (McKinney, 2018)
Excellent (20%) Proficient (15%) Marginal (10%) Unacceptable (0%)
Completeness
including
Citation
All required tasks
are completed
Submission
highlights tasks
completion.
However, missed
some tasks in
between, which
created a
disconnection
Some tasks are
completed, which
are disjoint in
nature.
Incorrect and irrelevant
Correctness All parts of the
given tasks are
correct
Most of the given
tasks are correct
However, some
Most of the given
tasks are
incorrect. The
submission
Incorrect and
unacceptable
Project Requirement
CSCI 5408 (Winter 2022) saurabh.dey@dal.ca
portions need minor
modifications
requires major
modifications.
Novelty The submission
contains novel
contribution in
key segments,
which is a clear
indication of
application
knowledge
The submission
lacks novel
contributions. There
are some evidences
of novelty, however,
it is not significant
The submission
does not contain
novel
contributions.
However, there is
an evidence of
some effort
There is no novelty
Clarity The written or
graphical
materials, and
developed
applications
provide a clear
picture of the
concept, and
highlights the
clarity
The written or
graphical materials,
and developed
applications do not
show clear picture
of the concept.
There is room for
improvement
The written or
graphical
materials, and
developed
applications fail to
prove the clarity.
Background
knowledge is
needed
Failed to prove the
clarity. Need proper
background knowledge
to perform the tasks
Group Work Evidence of group
work, meeting
logs, Coordination
Evidence of group
work. However,
missed meeting
logs, room for
improvement in
Coordination
Missed meeting
logs, failed to
display group
coordination
No group work done.
Project is unacceptable
Project Requirements
In this project, you need to build a simple distributed database management system (D2_DB) that
will operate in 2 Linux virtual instances in the Google Cloud Platform. Your team should explore and
implement data structure concepts for creating the databases, its management system, and security.
In addition, your team should build an analytics engine to perform basic data analytics. Your database
should handle requests handle from 2 users (one user for each VM instance). The database
management system layer should provide a command-line interface (Graphical User Interface is not
required), and perform various functionalities of database management system listed below.
Functional Requirements:

Module 1: DB Design
1. You need to identify one or two linear data structure(s), which can be used for query, and
data processing.
2. Once the data is processed it can be stored in a customized file format, which will be
considered as your persistent storage
Customized File Format cannot be in any of these formats – JSON/XML/CSV/Serialized or
binary
3. You need to maintain data dictionary or meta data file for each local DBMS, and a global
metadata file; You can use same customized file format to maintain the data dictionary.
Project Requirement
CSCI 5408 (Winter 2022) saurabh.dey@dal.ca

Module 2: Query Implementation
1. Your application should validate and execute the following operations.
(Standard SQL command and queries only)
a. Create database
b. Use database
c. Create table
d. Insert into table
e. Select from table with single where condition (AND || OR || NOT are not required)
f. Update one column with single where condition (AND not required)
g. Delete a row with single where condition

Module 3: Transaction Processing
1. Your system should identify what is a transaction and what is a normal query.
2. In case of transaction, you cannot write the data immediately to persistent storage, you need
to perform the operation in the linear data structure.
3. Transaction follows ACID properties, so you need to consider that. [Hint: It can be achieved
by scanning logs]
{You do need to work on concurrency control. Single distributed transaction is sufficient}

Module 4: Log Management
You need to create 3 Logs – JSON format is allowed for Logs
a. General Logs: query execution time, state of the database (e.g. how many tables are
there with number of records at a given time)
b. Event Logs: changes in database, concurrent transactions, crash reports, etc.
c. Query Logs: capture user queries and timestamp of query submission
{Do not use any in-build package or libraries; You need to perform normal file read write operations
to capture the query, timestamp, login details, data change etc.}

Module 5: Data Modelling – Reverse Engineering
1. Your application should provide option for generating an ERD based on current database
state.
2. User will provide the database name, and the application will create ERD based on the
metadata, and data files.
{You do not have to create any graphical ERD, a text file containing tables, columns, relationships,
cardinality will be sufficient}

Module 6: Export Structure & Value
1. Your application should provide an option for exporting structure and values (in standard
SQL format) for each database, which is selected by the end user.
2. This is like SQL dump (structure+value) created by any standard DBMS Export option.
3. You cannot use any external packages, and as mentioned, your export format must be in SQL
4. Your data dump must capture the current state of the database (E.g. if there is any update
performed on a data, it must be reflected in the data dump. Do not write create or insert
statements from console input to a file as the SQL export. You must dynamically generate it)

Project Requirement
CSCI 5408 (Winter 2022) saurabh.dey@dal.ca

Module 7: Analytics
1. The D2_DB application should provide some basic analytics – The results must be written in
files, and displayed on screen
a. How many queries (valid + invalid) are submitted by Database. (E.g. ran in VM1
instance)
E.g.: >> count queries;
“user SDEY submitted 10 queries for DB1 running on Virtual Machine 1”
“user Alex submitted 3 queries for DB2 running on Virtual Machine 2”
b. How many Update operations are successfully executed by Tables
E.g. >> count update DB1;
“Total 9 Update operations are performed on Employee”
“Total 3 Update operations are performed on Department”

Module 8: User Interface & Login Security
1. Your user interface design should be basic console based
2. It must provide access to the valid user only.
3. User interface can be menu driven, and provide options for registration or login
4. For registration, it should accept the userID, password, and security questions/answers – and
store all information in the User_Profile text file
a. Use some hashing like md5, Sha1 etc. and store the hashed UserID, hashed password
in the file. (you can use Java libraries for hashing)
b. You do not have to encrypt security question/answer.
5. If a registered user wants to access the system he/she/they needs to provide valid UserID,
and password, which will be hashed, and checked with the entry available in the User_Profile
text file. The security answer will also be asked at login. Since you are building a distributed
database management system, User_Profile text file needs to be present in both vistual
machine instances.
6. Once the users gain access, they get 5 options.
E.g.
1. Write Queries
2. Export
3. Data Model
4. Analytics
7. The “Write Queries” option should work for both normal queries and transaction.
Deliverables:
Phase 1 (Feasibility Study and Design): (2%)
• Each group will work on the problem and identify a solution.
• Each group will perform a feasibility study and submit a short-recorded group presentation
with their meeting Logs. (only 1-member can present for 10 min. as group representative)
• Each group will submit their tentative design, and implementation plan (maximum 5 pages.
Include citations if you use any source for background study, coding skills, or concepts.)
Phase 2 (Go-Live and Project Closure): (20%)
• Each group will complete the task incorporating the changes suggested in Phase 1
Project Requirement
CSCI 5408 (Winter 2022) saurabh.dey@dal.ca
• Each group will complete the project implementation and record the details in the form of a
final report
• Each group will submit a report (40 to 65 pages) and a recorded group presentation
explaining major code blocks, and demonstration of the product. (every member needs to
present)
o Final Report should contain architecture details, design details, implementation
details of each module, use case, test case, meeting logs etc.
• There will be a synchronous Q&A session with each group at the end of the course
Visual Representation for your understanding
GCP VM 1 running Linux GCP VM 2 running Linux
D2_DB Package
Java Code + Data Files_VM1 +
Folders_VM1 + Meta Data_Local_VM1
+ Meta Data_Global
D2_DB Package
Java Code + Data Files_VM2 +
Folders_VM2 + Meta Data_Local_VM2
+ Meta Data_Global
ssh to either VM and execute your Java
code, which will perform the
Distributed DB operation
Local Machine
Cloud Machine 1 Cloud Machine 2