---------- Forwarded message ---------- From: Hanson Char <[EMAIL PROTECTED]> Date: May 11, 2005 9:28 PM Subject: Re: Query regarding remote cache To: Hariprasath Manivannan <[EMAIL PROTECTED]>
The given URL is referring to the use of "remote cache" in JCS, which is not applicable to the use of lateral cache. Lateral cache is rather a "distributed index", which AFAIK tries to partition the entire cache into different nodes, but with no guarantee that the replicates of the same cache item is consistent among all nodes. So is the original concern related to Remote or Lateral ? Hanson On 5/11/05, Hariprasath Manivannan <[EMAIL PROTECTED]> wrote: > Hi Hanson, > > I am looking into the following configuration for my needs: > > http://jakarta.apache.org/jcs/RemoteAuxCache.html > > Also my understanding about Remote Cache vs Lateral cache is: > The remote cache can get updates from the local cache only. > Lateral cache is also a kind of remote cache, but it can send update to the > local cache. > > > > Regards, > Hari > > > On 5/11/05, Hanson Char <[EMAIL PROTECTED]> wrote: > > Hari, > > > > I am starting to think we are talking about different things here. We > > should clarify the terminology. > > > > 1) Are you referring to the use of a) remote cache server or b) > > lateral cache in JCS ? > > 2) What does it mean by "Remote Cache Synchronization" ? Is it an > > extra step involved in the use of lateral cache ? For AFAIK, there is > > no such thing in using the remote cache server. > > > > H > > > > On 5/11/05, Hariprasath Manivannan <[EMAIL PROTECTED]> wrote: > > > Hi Hanson, > > > > > > I have attached a word doc depicting the problem. > > > > > > > > > > > > Regards, > > > Hari > > > > > > > > > On 5/11/05, Hanson Char <[EMAIL PROTECTED] > wrote: > > > > What do you mean by "synchronization" ? Do you mean when B tries to > > > > update it's local cache, or C tries to update it's local cache, or > > > > both ? In all cases, A at most will only be affected by a bunch of > > > > cache item delete requests. > > > > > > > > Hanson > > > > > > > > On 5/11/05, Hariprasath Manivannan <[EMAIL PROTECTED] > wrote: > > > > > Hi Hanson, > > > > > > > > > > Thanks for reply. > > > > > > > > > > To clarify things about my query : The client A is again another > J2EE > > > > > application. I referred to client because it uses the data from my > > > datastore > > > > > application B. > > > > > > > > > > The scenario that I am worried is: If a new client application C > wants > > > to > > > > > use data from my store(using cache), then a cache will be setup at > > > client C > > > > > and at the contents will also be stored in the cache at "B"(My data > > > store > > > > > application). When synchronization happens, the cache at A will > updated > > > to > > > > > have the stuff that "C" requested. > > > > > > > > > > Regards, > > > > > Hari > > > > > > > > > > > > > > > On 5/11/05, Hanson Char < [EMAIL PROTECTED]> wrote: > > > > > > When you say "client" side A and "server" side B, do you mean A is > a > > > > > > client of server B, both using JCS (in remote cache mode) ? > > > > > > > > > > > > If so, when B synchronizes with the remote cache, the > corresponding > > > > > > cache items are flushed from A, so the client will never hold data > not > > > > > > relevant to it. > > > > > > > > > > > > Hanson Char > > > > > > > > > > > > On 5/11/05, Hariprasath Manivannan < [EMAIL PROTECTED]> > wrote: > > > > > > > Hi, > > > > > > > > > > > > > > I am planning to use the remote cache feature of JCS in my J2EE > > > based > > > > > > > application. Basically my core application is a static > data-store. > > > Since > > > > > the > > > > > > > data is static, I decided to use the remote cache feature as > this > > > can > > > > > reduce > > > > > > > the RMI calls and network traffic. > > > > > > > > > > > > > > Now if I have a cache and both server side and client side, then > I > > > may > > > > > face > > > > > > > issue during the remote caches synchronization. The server side > > > cache > > > > > will > > > > > > > be a global cache containing all the cached objects. This is > fine. > > > But > > > > > once > > > > > > > synchronization is complete, the client cache's will become > similar > > > in > > > > > > > content to the server side cache. So for any given client > > > application > > > > > cache > > > > > > > will be holding data which is not relevant to that application. > > > > > > > > > > > > > > Is there any way where by I still maintain the remote cache, but > > > > > synchronize > > > > > > > with primary cache server "selectively" - based on a application > ID > > > or > > > > > > > something like that. > > > > > > > > > > > > > > Regards, > > > > > > > Hari > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > Cheers, > > > > > Hariprasath Manivannan, > > > > > M : (006) 016 970 8470. > > > > > http://kl-diary.blogspot.com > > > > > > > > > > > > > > > > > > > > > -- > > > Cheers, > > > Hariprasath Manivannan, > > > M : (006) 016 970 8470. > > > http://kl-diary.blogspot.com > > > > > > > > > > > > -- > > Cheers, > Hariprasath Manivannan, > M : (006) 016 970 8470. > http://kl-diary.blogspot.com > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
