+++ /dev/null
-When the `search` plugin is enabled, with the options:
-
-```
-# search plugin
-# path to the omega cgi program
-omega_cgi: /usr/lib/cgi-bin/omega/omega
-# use google site search rather than internal xapian index?
-google_search: 0
-```
-
-Then we see the following error when editing a page from the web browser UI or running `ikiwiki --rebuild`:
-
-```
-Error: Exception: Db block overwritten - are there multiple writers?
-```
-
-The issue goes away when we disable the 'search' plugin.
-
-We're running ikiwiki version 3.20180228-1.
-
-> Every time?
-> I used to see an error (this one, I think) intermittently on OS X, on incremental rebuilds only.
-> Haven't seen it in a while, though.
-> Maybe something got fixed upstream.
-> What OS, and what version of Xapian and Omega?
-> (1.4.11 for me.)
-> Maybe worth blowing away `.ikiwiki/xapian/`, as described in [[tips/inside_dot_ikiwiki]]?
->
-> --[[schmonz]]
->
->> We've removed the `.ikiwiki/xapian` directory before performing a rebuild, including actually rebooting the host OS. The search appears to work for a while, but once the wiki has been live for a while (and subject to edits on the web interface), the issue reappears.
->>
->> * OS: Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-47-generic x86_64)
->> * xapian-tools/bionic-updates,bionic-security,now 1.4.5-1ubuntu0.1 amd64
->> * xapian-omega/bionic,now 1.4.5-1 amd64
->>
->> I've upgraded our installations of both Xapian components and will let you know if that fixes it.
->> -- jsewell
->>
->>> Updating appeared to fix it. Sorry for not trying that sooner. Thanks for the help.
->>> -- jsewell