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We automatically hide URLs, though the URL you shared (no protocol, not an original top-level domain like .com) wasn't identified as a URL. I've edited your post to fix that, and also removed the image.
As to the issue, it is unexpected. I have a multisite test site and don't have the same issue, there is only one entry in wp_sitemeta for the key wp_installer_network.
And looking at our plugin code—which writes that "option" in only one place, via the update_site_option function, it's hard to see how it would be added multiple times (thousands of times in your case).
Following the WordPress code for the update_site_option function, it would appear that it might happen if retrieving the option value returned false, in which case the update function would believe there was no existing value and so create a new one.
In any case, more than a single entry is redundant and so the first thing I would do is to delete all but one of the existing entries, and then to check whether more entries are created (in case this was an issue previously that generated all of those entries).
Let me know if you need help with that.
The topic ‘[Closed] infinite inserts for meta_key "wp_installer_network" into wp_sitemeta table’ is closed to new replies.