So you thought you were finished configuring your AWS target, eh? I already posted a previous time on how to address a fault with the RMEM, but now we’re onto the WMEM. Wait, WM-what? No, I fear a DBAs work is never over and when it comes to the cloud, our skill set has just expanded from what it was when we worked on-premise! Our trusty Delphix Admin Console keeps track of settings on all our sources and targets, informing us when the settings aren’t set to what is recommended, so that we’ll be aware of any less than optimal…
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So you’ve deployed targets with Delphix on AWS and you receive the following error: It’s only a warning, but it states that you’re default of 87380 is below the recommended second value for the ipv4.tcp.rmem property. Is this really an issue and do you need to resolve it? As usual, the answer is “it depends” and its all about on how important performance is to you. What is net.ipv4.tcp.rmem? To answer this question, we need to understand network performance. I’m no network admin, so I am far from an expert on this topic, but as I’ve worked more often in…
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I’ve been discussing for years about the importance of network to database performance, especially once I started working on VLDBs, (Very Large Databases) but its a topic that often is disregarded. Now that I’m working more and more in the cloud, it’s become more evident the importance of the network to our survival. For each and every cloud project I’ve been involved in, there is evidently going to be multiple challenges that turn to the network administrator for a solution. I don’t blame the administrator in any way when he becomes exasperated by our requests. As it is my solemn…