I am developing a mechanism for exchanging data between two or more processes using shared memory on Linux. The problem is that a certain degree of concurrency control is required to maintain share
Tag: Consistency
VDP consistency level does not apply the application consistent backup crash uniform backup
There are three backup states in the VDP backup state: consistency level is not applicable, application-consistent backup (Application-Consistent Backup), crash-consistent backup (Crash-consistent
Concurrent – Select consistency model for concurrent programming language
I am in the design phase of a programming language, and I am currently considering concurrency. I need to find a consistency model, that is, how to process data through concurrent processes program
PT-Table-Checksum data consistency use reference
pt-table-checksum is an artifact to check the consistency of MySQL data. With the pt-table-sync tool, it is perfect. There are many articles about this on the Internet, so I won’t introduce too muc
Stability detection of consistency hash algorithm and its problems and solvement strategies
Join a machine node:
assumes p2p network To add a new machine node N(new), then N(new) must first establish a connection with the N(x) node in the p2p network, and use N(x) to find the corres
Consistency hash algorithm implementation (pseudo code)
Refer to this blog for the principle of consistent Hash algorithm, and the introduction is more detailed: https://www.cnblogs.com/lpfuture/p/5796398.html
Preset scene: all requests Then, acco
5 implementations of talking DB and cache consistency
Data is stored in the database. In order to speed up business access, we put some data in the database in the cache. Then the question is, how to ensure the consistency of the data in the db and th
Consistency
Distributed classic structure
As shown in the figure, when the front end receives the request, By calculating the hash value of the key, the hash value is modulo 3, and then distributed to di
High concurrent cache consistency problem
When the data is read:
Check the cache first, and the cache can’t check the database, and then put the checked results in the cache. These are basically not controversial.
But when the
Consistent Hachi Distribution
hash_ring
#- *- coding: utf-8 -*-
“”” hash_ring
~~~~~~~~~~~~~
Implements consistent hashing that can be used when
the number of server nodes can increase or decrease (like in memcached) .