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Sunday, 20 May 2018 Dereel
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Still more housework
Topic: general Link here

Somehow the housework isn't letting up. Another 3 dish washer loads (5 since yesterday morning) are probably one way to measure the amount of work that I did, and there was enough left over in the evening for a sixth load. Thank God it's not always like this.


The 18 minute umount
Topic: technology, opinion Link here

Time for another photo backup today, as usual with Yvonne waiting impatiently for it to finish. And it took its time: instead of the usual 15 minutes it took 25. And then I had the same thing I saw last weekend: it hung after the final df:

That's exactly what happened on Tuesday. On that occasion I had suspected that it was something to do with umount flushing buffers, but I didn't see any activity. Today I took another look. Yes, umount was running. The disk was no longer mounted, but there was I/O activity, quite a bit in fact: round 150 32 kB transfers per second, 4.8 MB/s, probably enough to saturate the slow external disk. OK, that makes sense—up to a point. After 3 minutes I was puzzled, but given that I had a panic last time, I let it run.

18 minutes! That's over 5 GB of I/O! Why? In each case, I had deleted about 150 GB of temporary files, and the rsync process had to remove them on the backup. But that's a lot of metadata.

Tuesday's panic was related to soft updates. Why? Why should the backup disk run with soft updates? But it was:

/dev/da2p1 on /photobackup (ufs, local, noatime, soft-updates, writes: sync 6 async 0, reads: sync 1 async 0)

Time to reconsider.


Monday, 21 May 2018 Dereel Images for 21 May 2018
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More house construction issues
Topic: Stones Road house, general, opinion Link here

For a while I've noticed that one of the power points in the kitchen was loose:


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As I said, “typical of my favourite electrician, Jim Lannen”. But there's not much of an issue: remove the face plate and screw the frame back tightly into its socket.

Unfortunately, that's not that simple: the frame is broken!

 
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How did that happen? It could have also been the tiler who replaced the ornamental tiles that he had installed upside-down. Certainly at that time the frame was still intact:


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So it seems that it was screwed back in again with so much tension that it finally broke. For once, Jim is off the hook.


This page contains (roughly) yesterday's and today's entries. I have a horror of reverse chronological documents, so all my diary entries are chronological. This page normally contains the last two days, but if I fall behind it may contain more. You can find older entries in the archive. Note that I often update a diary entry a day or two after I write it.     Do you have a comment about something I have written? This is a diary, not a “blog”, and there is deliberately no provision for directly adding comments. But I welcome feedback and try to reply to all messages I receive. See the diary overview for more details. If you do send me a message relating to something I have written, please indicate whether you'd prefer me not to mention your name. Otherwise I'll assume that it's OK to do so.


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