The servers in a Remote Cache Cluster do not synchronize. Instead, they stay in sync by sending items to each other and by retrieving from each other.
The servers in the cluster are connected to each other in the same way that the client is connected to the primary, except for one difference. The remote servers will try to retrieve from other servers when the request originates externally and the cluster consistency setting is true. If the primary goes down, the client will connect to the failover. When the primary comes back up, the client will reconnect to the primary. The primary will not try to load all the data that may have been put int he failvoer actively; instead it does it reactively. If the client requests data that is not in the primary, the primary will ask the failover server if the data is around. If so, it will be retrieved and copied to the primary. Yes, if the failover crashes before the data makes it to the primary, the data is lost, at least until the failover starts again. This is a cache, not a db. It provides a pretty reliable storage mechanism. . . . So, the items are sent from the primary to the failover just are they are sent from the client to the primary. They are queued internally and sent as quickly as possible. You can configure the queue by using a thread pool. Aaron --- On Thu, 8/14/08, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > From: [EMAIL PROTECTED] <[EMAIL PROTECTED]> > Subject: JCS Cluster - sync timing > To: "JCS Users List" <jcs-users@jakarta.apache.org> > Cc: "JCS Users List" <jcs-users@jakarta.apache.org> > Date: Thursday, August 14, 2008, 6:49 AM > Are there any timing settings for synchronization on a JCS > cluster? > > For example, I have JCS server A and server B, both part of > the cluster. > Server A gets some objects, how long does it take Server B > to get those > same objects? Is it done immediately? Periodically? Is > this setting > modifiable? > > Rick Francisco > Programmer Analyst - Information Services > Kohl's Department Stores > (262) 703 - 6790 > [EMAIL PROTECTED] > > CONFIDENTIALITY NOTICE: > This is a transmission from Kohl's Department Stores, > Inc. > and may contain information which is confidential and > proprietary. > If you are not the addressee, any disclosure, copying or > distribution or use of the contents of this message is > expressly prohibited. > If you have received this transmission in error, please > destroy it and notify us immediately at 262-703-7000. > > CAUTION: > Internet and e-mail communications are Kohl's property > and Kohl's reserves the right to retrieve and read any > message created, sent and received. Kohl's reserves the > right to monitor messages by authorized Kohl's > Associates at any time > without any further consent. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
