CSCE5360 –Reading Assignment Number ___2____
Your Name: Mounika Pandhiri
Paper title: Fast Serializable Multi-Version Concurrency Control for Main-Memory Database Systems
You should understand what the problem(s) (or issue(s)) that the paper is addressing, and their solution(s), which must be described in the reading assignment by your own words. Please do not copy and paste from the assigned paper.
1. Clear statements of the problem(s) (or issue(s)) that the paper is addressing (upto 2 pages only):
Providing Serializability is one of the most common feature of the present day databases. The most important transaction property among ACID properties of transactions is the Isolation. Isolation gives a misconception to each transaction that is independent of other transactions and is executed separately whereas in reality, the transactions are executed concurrently in background. In order to provide isolation, the concept of serialization is used by DBMS. But the actual problem lies in implementing the serializability efficiently. Many systems use Snapshot Isolation, which is an alternative for serializability. But it does not provide full serializability and in order to incorporate serializability in to existing snapshot isolation results in higher costs.
The most common way to implement serializability is to use the technique of two-phase locking where the read and write locks are maintained for data items. Using this locks helps in executing the
The paper should be written in APA format using Times New Roman, 12-point font. It should be no less than 500 words and written in paragraph format. You will need to include in-text citations and references.
The purpose of this assignment is to give you an opportunity to apply some of the critical reading strategies you have evaluated.
1. The paper fulfills the purpose of the assignment as described in the syllabus and in this document (up to 10 points)
The advantages of interrupt driven I/O over programmed I/O is that in interrupt driven I/O the interrupt mechanisms free I/O devices quickly.
Reduce time to access the required data: DDBMS allows to store copies of a data in multiple branches.
Using the sequential I/O we can optimize the performance of our configuration. For writing the intensive fields its better to avoid either RAID 5 or RAID 6 rather than that we can use RAID 1 or 10.
3. The paper must end with a short paragraph that states a conclusion. The conclusion and thesis must be consistent.
Paragraph 1: Must briefly explain the issue and state your position on it (do not present any reasons).
MPI: The fault-tolerance mechanism in MPI depends either on handling failure in the application itself or implementing regular checkpoint files.
* Do a first reading that uses underlining, annotation, and summary to make sure you understand what the writer is saying. Go back to any sections that need clarification.
The aim of work is to provide service guarantees when multiple synchronous requests are present with high disk throughput. To address this problem we consider BFQ and modified versions of BFQ. It is found that MBFQV1 gives a better performance when compared with the BFQ. MBFQV2 is the suggested new disk scheduler which preserve both guarantees and a high throughput. In MBFQV2 we observed that the throughput, speed of transfer were better compared to the other schedulers for the normal size applications.
g. Explanation of the central points from the article(s): Avoid just using a quote from a source. Explain what you think the author means.
It is a set of technologies using which we can copy and then distribute data and the database objects from one database to another and then carry out synchronization between the databases to maintain the consistency of the data.
Apply each of the following questions to the paper you’ve selected to read. Provide thorough and thoughtful answers so the author can easily and appropriately revise.
I was always inspired by the idea of storing large amounts of structured and unstructured data. Therefore I chose to finish my concentration in Data Management.