Caché

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Hi All,

On button click from my zen page am calling the $System.SQL.ShowPlan() to calculate the cost of the SQL query.

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We are updating from 2015.1.1 to  2017.2. I am testing the Hot JVM functionality to see if our current functionality is working in the new version of 2017.

I am having a problem trying to make it "fail".

Last answer 7 days ago Last comment 7 days ago
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The use of the InterSystems Virtual IP (VIP) address built-in to Caché database mirroring has certain limitations. In particular, it can only be used when mirror members reside the same network subnet. When multiple data centers are used, network subnets are not often “stretched” beyond the physical data center due to added network complexity (more detailed discussion here). For similar reasons, Virtual IP is often not usable when the database is hosted in the cloud.

Network traffic management appliances such as load balancers (physical or virtual) can be used to achieve the same level of transparency, presenting a single address to the client applications or devices. The network traffic manager automatically redirects clients to the current mirror primary’s real IP address. The automation is intended to meet the needs of both HA failover and DR promotion following a disaster. 

Last comment 7 days ago
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