[mythtv-users] mythfilldatabase problems
dwilson at solidstatesoftware.com
Fri Sep 2 19:09:13 UTC 2011
On 08/31/2011 12:47 PM, Michael T. Dean wrote:
> On 08/31/2011 12:19 PM, Dan Wilson wrote:
>> With the Dish Network lineup configured on Schedules Direct, I get
>> mythfilldatabase failures. --dd-grab-all never works (timeouts).
>> Individual daily grabs sometimes work, but fail more often than not.
>> Confusingly, some daily grabs seem to have worked, but a subsequent
>> mythfilldatabase run claims that no data is present and repeats the grab
>> again (which still doesn't seem to have worked).
>> Connecting to
>> HTTP request sent, awaiting response... 200 OK
>> Length: unspecified [text/xml]
>> Saving to: “STDOUT”
>> [<=> ] 38,720 7.85K/s 2011-08-31 10:43:47.010 DataDirect: Your
>> subscription expires on Wed Sep 28 11:23 PM
>> [<=> ] 237,994 --.-K/s in 19m 47s
>> 2011-08-31 11:03:29 (200 B/s) - Read error at byte 237994 (Connection
>> timed out).Retrying.
> perhaps? (Only if you're using ext4 for the file system that holds the
> mysql database data--likely your root file system.)
Indeed, that thread had pertinent information, although the problem
didn't seem to be the ext4 file system.
I believe that the timeout occurred because the database accesses were
simply taking too long. mythfilldatabase would appear to hang because it
was waiting for data from data direct, but data direct had already timed
out on the download. So mythfilldatabase waited until it's own timeout
I ordered an SSD drive and it arrived today. After copying
/var/lib/mysql onto the new drive, then mounting it on top of
/var/lib/mysql, I brought mysqld and mythbackend back up.
Individual daily updates dropped from 18+ minutes on the regular hard
drive (when they didn't time out and fail) to 2 minutes on the SSD, and
I haven't seen a single failure so far.
However, I still see the problem where mythfilldatabase runs, says it
updates the schedule for a day, but then an immediate re-run of
mythfilldatabase says there isn't any data present for that day and it
runs that day's update again (which also doesn't seem to work). It
doesn't fail on every day, but it seems to fail consistently on the same
My next test was: mythfilldatabase --dd-grab-all
It took 25 minutes, and didn't time out! This is a first since switching
Information Center/System Status says I have 14 days worth of data. The
Scheduled Programs page shows at least one program being recorded on
I think I'm in business! Switching to an SSD for the mysql database was
worth every penny of the $74 I paid (including overnight shipping from
Thanks for the help,
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