About 3-4k of these an hour:
2013-11-11 06:47:23 mw1006 enwiki: Used automatic re-authentication for Lua script <hex...>.
Filing under MediaWiki product because it seems unlikely that each message represents an actual disconnect and more likely that one error state is mistaken for another.
Re-authentication (+ logging) were added in https://gerrit.wikimedia.org/r/#/c/93872/ to work around https://github.com/nicolasff/phpredis/issues/403.
Version: unspecified
Severity: normal