I regularly use the Export tool to download an XML backup of my database, and the latest file is more than double the size of the previous one (from 4.4 MB to 8.9). The earlier file was from three days before the latest one, and only three posts were added during that time. What could cause this?
XML Export Is Suddenly Huge (5 posts)
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ophion
Posted 8 months ago # -
Have you opened it up in a text editor to take a peek?
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Posted 8 months ago #Yes, of course. Nothing leaps to the fore.
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Did you add any new plug-ins since the last one? If you run the before & after file through a program that checks for file differences it'll point you to anything that's changed.
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Posted 8 months ago #Creating a diff was my first task, but its contents puzzled me. The patch file itself was 5 MB, so visual scanning was daunting even there. Many entries seemed to be duplicated with odd spacing and diacriticals (encoding issue? corrupt file?). My export this morning resulted in a 4.4 MB file. A diff between it and the previous 4.4 MB export yields what one would expect.
As to plug-ins, I did switch recently from WordPress Stats to Jetpack (with only the Stats module enabled).
Again, my question was about possible causes. The large discrepancy in size is what led me to dig into the files; I am concerned that something similar may have happened but without the ballooning, potentially silently leaving me--and surely thousands of others, if there is an issue--with invalid backup files.
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