Kubernetes sticky session

1. What is sticky session in Kubernetes?
2. What is a sticky session?
3. What is the difference between session affinity and sticky session?
4. Why sticky sessions are needed?
5. What is sticky session vs cookie?
6. What is sticky vs non sticky sessions?
7. When should you not use sticky sessions?
8. How do you test a sticky session?
9. What is the difference between round robin and sticky sessions?
10. Is session better than cookie?
11. How do you stop a sticky session?
12. What is sticky session in spring boot?
13. What can sticky sessions affect?
14. When should you not use sticky sessions?
15. What is sticky session in Apache?
16. What is the difference between round robin and sticky sessions?
17. How do you test a sticky session?
18. How do you stop a sticky session?

What is sticky session in Kubernetes?

Sticky sessions or session affinity, is a feature that allows you to keep a session alive for a certain period of time. In a Kubernetes cluster, all the traffic from a client to an application, even if you scale from 1 to 3 or more replicas, will be redirected to the same pod.

What is a sticky session?

What is a sticky session. Session stickiness, a.k.a., session persistence, is a process in which a load balancer creates an affinity between a client and a specific network server for the duration of a session, (i.e., the time a specific IP spends on a website).

What is the difference between session affinity and sticky session?

Session affinity, also known as “sticky sessions”, is the function of the load balancer that directs subsequent requests from each unique session to the same Dgraph in the load balancer pool.

Why sticky sessions are needed?

However, you can use the sticky session feature (also known as session affinity) to enable the load balancer to bind a user's session to a specific target. This ensures that all requests from the user during the session are sent to the same target.

What is sticky session vs cookie?

Sticky session are likely to stay on same server when the first request comes and provided from same server for each request. Where as cookie based session are nothing but keeping the data on client machine in browser. can be served from any server which is available.

What is sticky vs non sticky sessions?

To summarize, In case of Sticky Sessions, all your requests will be directed to the same physical web server while in case of a non-sticky load balancer may choose any webserver to serve your requests.

When should you not use sticky sessions?

Stateless applications: In stateless applications, sticky sessions are unnecessary, since user data is part of the client request itself and are not stored on the server.

How do you test a sticky session?

To test the sticky sessions configuration changes, start the Tomcat instances and the Apache HTTP server and follow the test procedure in this section. Operation Console on the back-end machines. Verify that the behavior in a clustered environment is the same as in a single-server environment.

What is the difference between round robin and sticky sessions?

The round-robin algorithm is used to route a user's first request to a web server when sticky load balancers are used to load balance in a round-robin manner. Requests are then forwarded to the same server until the sticky session expires. At this point, a new sticky session is created via the round-robin method.

Is session better than cookie?

Sessions are more secured compared to cookies, as they save data in encrypted form. Cookies are not secure, as data is stored in a text file, and if any unauthorized user gets access to our system, he can temper the data.

How do you stop a sticky session?

Read from Cache and DB eventually for consistency, while write all your cached data into DB at regular intervals. The Cache and DB datastructure should have expiration time as well and you can reset the time everytime an action happens. This is an approach if you want to avoid Sticky sessions.

What is sticky session in spring boot?

Session affinity (or sticky sessions) means that requests to a clustered web application will be routed to the node that originally issued the HTTP session cookie. If that application instance should be taken offline, then session replication ensures that the relevant state is available on another node.

What can sticky sessions affect?

Since requests for a user are always routed to the same machine that first served the request for that session, sticky sessions can cause uneven load distribution across servers.

When should you not use sticky sessions?

Stateless applications: In stateless applications, sticky sessions are unnecessary, since user data is part of the client request itself and are not stored on the server.

What is sticky session in Apache?

Overview. Sticky Session is a method used with Load Balancing, to achieve server affinity. In other words, it assigns a particular client with a particular server instance behind Load Balancer, so that HTTP session doesn't get lost across application instances.

What is the difference between round robin and sticky sessions?

The round-robin algorithm is used to route a user's first request to a web server when sticky load balancers are used to load balance in a round-robin manner. Requests are then forwarded to the same server until the sticky session expires. At this point, a new sticky session is created via the round-robin method.

How do you test a sticky session?

To test the sticky sessions configuration changes, start the Tomcat instances and the Apache HTTP server and follow the test procedure in this section. Operation Console on the back-end machines. Verify that the behavior in a clustered environment is the same as in a single-server environment.

How do you stop a sticky session?

Read from Cache and DB eventually for consistency, while write all your cached data into DB at regular intervals. The Cache and DB datastructure should have expiration time as well and you can reset the time everytime an action happens. This is an approach if you want to avoid Sticky sessions.