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From monstereo <mehmetozangu...@gmail.com>
Subject Re: The Apache Ignite book - I have some confusion when reading?
Date Sun, 05 Aug 2018 15:54:12 GMT
last question is-> in replicated mode all nodes are primary node?


monstereo wrote
> Especially chapter 4 Architecture deep dive
> 
> Now: 
> 1) primary node is the node where we do igniteCache.put(2)="any string". I
> mean node which we put data in to cache is primary node?
> 
> 2) let's say we have primary node(includes some cache datas, cache name
> cache1), now we create another node, then we take the distributed
> cache(igniteCache.getOrCreateCache("cache1") and we put new element to the
> node igniteCache.put(3)="data", now this new node is also primary node?
> 
> 3) I have known that when client node wants to read cache, firstly it
> reads
> from primary node. But book says ->
>             
*
>   *  "up to 2.5 version, all read requests from the client node
> to replicated cache goes
> through the primary node, which can impact a severe performance issue. It
> was fixed as
> a bug20 and resolved in version 2.5"*.
*
> That's means, client can read data any backup node?(without going primary
> node)
> 
> 4) For data replication book says there are 2 forms ->
*
> *Master-slave
> Peer-to-peer*
*
> but there is no explanation for which ignite should use in default. Or how
> can i
> force to use one specific form?
> 
> 5) Book says that (for Peer-to-peer)->
*
> *The loss of any node does not prevent access to the data store.*
*
> Now, let's say I have one node which includes cache store factory xml
> configuration which updates database or get datas from database.
> Now, I create another node, but this node has no cache store factoy xml
> configuration. 
> When node which has  cache store factory xml configuration fails, other
> node(s) will be update database ?
> 
> 
> 
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/





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