mapstore | Multicore optimized in-memory data store in Go

Good evening.

The purpose of this component is to create a map taking data from observable curentLocation. loadInitialLocation() and newMap() in useEffect() should only be called once, and updateMap() in autorun() is called whenever the obrservable curentLocation changes.

The issue is: newMap() shouldn't be called until loadInitialLocation() finishes its job which is to get data from server and load the result into observable curentLocation. Now newMap() is called when obrservable curentLocation is null.

I tried this in the useEffect():

I'm using MapStore to persist the data into Database.

My application is a multi-tenant application so if new tenant comes in how to create a map at run time in mapstore..

if you see in the below code, currently I have hardcoded for tenant-1.

this is my configuration class

I am trying to use MapStore backed by Cassandra. For that pushing those MapStore and MapLoader implementations to Hazelcast member using ClientUserCodeDeploymentConfig as follows

JPAMapStore missing in latest version of Hibernate-Spring.

Its Available in hazelcast-spring-3.2.4.jar, However i am not able to find it latest version of Hibernate-Spring.

I am trying to use JPA based Mapstore for my Spring Boot Application

Question - Can I share the same hazelcast cluster (cache) between the multiple application while using the write behind and read through functionality using map store and map loaders

Details

• I have enterprise environment have the multiple application and want to use the single cache
• I have multiple application(microservices) ie. APP_A, APP_B and APP_C independent of each other.
• I am running once instance of each application and each node will be the member node of the cluster.
• APP_A has MAP_A, APP_B has MAP_B and APP_C has MAP_C. Each application has MapStore for their respective maps.
• If a client sends a command instance.getMap("MAP_A").put("Key","Value") . This has some inconsistent behavior. Some time I see data is persistent in database but some times not.

Note - I wan to use the same hazelcast instance across all application, so that app A and access data from app B and vice versa.

I am assuming this is due to the node who handles the request. If request is handle by node A then it will work fine, but fails if request is handled by node B or C. I am assuming this is due to Mapstore_A implementation is not available with node B and C.

Am I doing something wrong? Is there something we can do to overcome this issue?

Thanks in advance.

Lets say, I have several Hazelcast members (servers) spread across world (e.g. Germany, Russia and etc).

It was required to store/split data in database by region and all data should be accessible from any server via IMap backed by MapStore.

I recently read this article which fulfills my requirement, but I am not sure about how will MapStore behave.

Crucial moment is that, if member1 (e.g. Russia) requests data from IMap with key owned by member2 (e.g. Germany), on which side MapStore.load() will be called?

I have a leaflet map (using Vue and vue2-leaflet) with many predefined nodes and connections between them (stored in a neo4j database). When the user clicks on a node (@mouseup, actually), all its connections are shown as a polyline. I want to be able to click on any of these connections on the map (the lines) and do stuff with it, like delete for example (there would be a popup or something with actions, but that's not important here).

The problem I'm having is that the click event doesn't record the connection ID (or anything that would identify which connection was in fact clicked). I could of course create one polyline for each connection, but I suspect the problem would persist, and it's not a really solution in my case, as I don't know how many connections each node has, and v-for doesn't seem to work with polylines (at least I wasn't able to make it work).

This is the nodes markers code:

Redux Map Store by props name.

Hello Everybody I am trying to open one popper at the time on click. I am surprised there is not an example of this on the React Material site. Right now I am trying to render multiple markers with their own popper. However, all of poppers are opening onClick here is my code. PS: I will attach a picture below to provide details of my problem.