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[quote=jsteele]For those who are interested, I think I have figured out what is going on. I did a minor upgrade to the database cluster on Saturday morning. At 12:55 am Sunday morning, a backup ran. I think this backup crashed the primary database node (the cluster has two storage nodes). But, the cluster kept running on the secondary node. I didn't notice that the first node had crashed. After the crash, the primary node no longer received new data since it was dead.

At 12:55 am this morning (last night), the backup process ran again and crashed the secondary node, causing the cluster to completely crash and putting the forums out of service. This morning, when I learned that the cluster had crashed, I started the primary node. Since it had not been collecting data since 12:55 am Sunday, all of Sunday's posts were gone. Those posts probably exist on the secondary node, but that node won't start. It probably won't start because the data between the two nodes is inconsistent and the solution will probably be to wipe out all data on the secondary node. But, I am still working on this.

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