MobileRead Forums - View Single Post - Suddently Search Unusably Slow, Cannot Delete Tag

idwtgyai · 01-22-2021, 02:18 AM

I recently upgraded my OS (Fedora 33). Now, I cannot use calibre because all searches are too slow. It doesn't matter what or where I search. The main Search field and the tag search are both too slow; it takes 30 seconds per character. It's unusable.

In trying to fix this, I also managed to delete the tag group from the left-side pane, which lists authors, languages, series, formats, etc. I don't know how to add the tags group back. This is not a major problem, but I would like to get it back, of course.

When I try to search anything, the "Worker" process spikes to 100 % CPU usage.

My suspicion is that there is a bad tag. When I go to the tag manager, I see there is one tag at the very top that has special characters in it. But, when I try to "recycle" this tag, the whole application crashes. I can delete other tags this way, though, so I'm pretty sure I should get rid of that tag, even if it is not the root cause.

I have a pretty large library of 4300+ books.

Any ideas? How do I delete this one tag? Do you think this slowness could be cause by one bad tag?

01-22-2021, 02:18 AM	#1
idwtgyai Member Posts: 21 Karma: 10 Join Date: Aug 2017 Device: kobo	Suddently Search Unusably Slow, Cannot Delete Tag I recently upgraded my OS (Fedora 33). Now, I cannot use calibre because all searches are too slow. It doesn't matter what or where I search. The main Search field and the tag search are both too slow; it takes 30 seconds per character. It's unusable. In trying to fix this, I also managed to delete the tag group from the left-side pane, which lists authors, languages, series, formats, etc. I don't know how to add the tags group back. This is not a major problem, but I would like to get it back, of course. When I try to search anything, the "Worker" process spikes to 100 % CPU usage. My suspicion is that there is a bad tag. When I go to the tag manager, I see there is one tag at the very top that has special characters in it. But, when I try to "recycle" this tag, the whole application crashes. I can delete other tags this way, though, so I'm pretty sure I should get rid of that tag, even if it is not the root cause. I have a pretty large library of 4300+ books. Any ideas? How do I delete this one tag? Do you think this slowness could be cause by one bad tag?