springdatagraphexperiments's Introduction
Added explicit locking to MemberServiceImpl.refer to avoid deadlocks. MUST USE: @Indexed(unique = true) private Long memberId; Otherwise the index-lock on the id will not be held, so that multiple nodes with that id might get created. The MemberServiceImplTest.testUniquenessInMultiThreadedScenario is a bit artificial, in a real scenario it would: * not create all referrals to a single member * use a bigger batch granularity (not just ONE referrer but a bunch of messages from a queue in one) * probably a finer grained locking (e.g. on both members or a subset of the members (category node)) locking both members could result in a deadlock if you had both referrals a->b and b->b in two concurrent threads at the same time which results in a deadlock exception (no stalling) and would have to be retried
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
๐ Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. ๐๐๐
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google โค๏ธ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.