Thanks Denis.
I did give that a try in the meantime and it sorted it out. Do you know how much of a performance delta it made? Thanks, Raymond. *From:* Denis Magda [mailto:dma...@apache.org] *Sent:* Friday, December 1, 2017 4:15 PM *To:* user@ignite.apache.org *Subject:* Re: Did the default page size change between Ignite 2.2 and 2.3 The page default size was changed to 4KB in 2.3 because of performance considerations: https://apacheignite.readme.io/docs/durable-memory-tuning#section-page-size Roll the size back to 2KB manually in your cluster configuration to get rid off this exception. — Denis On Nov 30, 2017, at 6:16 PM, Raymond Wilson <raymond_wil...@trimble.com> wrote: I am upgrading from Ignite 2.2 to 2.3. I use persistent storage and have an existing data store. When activating the cluster I get the following error in the C# client: class org.apache.ignite.IgniteCheckedException: Failed to verify store file (invalid page size) [expectedPageSize=4096, filePageSize=2048] I didn’t set a specific page size in 2.2 or 2.3. Did this change? Thanks, Raymond.