Latest Astropulse Status

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Eric Korpela Project Donor
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Message 1645119 - Posted: 21 Feb 2015, 23:38:12 UTC

Sorry for the long time with no updates. It's been a few busy weeks for me. First there was the ICON EUV critical design review (CDR) to prepare for. Now I'm in a panic about getting the automation in our calibration facility up and running before next week, and I'm preparing for a talk I'm giving next week. It hasn't left a lot of time for updates.

Well, as you've surmised, the repair on the Astropulse database came to a screeching halt a couple weeks ago when the impossible happened. We were moving files to free up space and then linking them back in. The script was checking before a file was moved to see if it was already a link or if it was a file to prevent a link being moved on top of a file, using the standard unix command "test -f" which returns true for files and false for links. Except on that day it returned true for about 10 links in a row. About the only thing I can come up with for a reason would be a bug in the xfs file system or in the "test" command, which is built into bash.

Anyway about 4.5 million astropulse signals lost their data blobs when that happened. This isn't as bad as it seems because that blob is just a little chunk of the workunit that can be recovered from the original data file.

But we decided that marvin was too tight on disk space for this reorganization, so we move the astropulse database and all its data to another machine where we made a dump of all the signals, dropped the old data chunks, added new ones, and now we're reloading all the signals at which point we will move everything back to marvin. Matt says the reload will probably be done Monday, then another day or two to copy everything back to marvin.
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Message 1645120 - Posted: 21 Feb 2015, 23:41:31 UTC - in response to Message 1645119.  

Thanks for the update Eric.

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Message 1645131 - Posted: 22 Feb 2015, 0:19:07 UTC

Gotta love those "That can't be happening... but it is happening" moments.

Thanks for the update before you get back to your other 50 things that need to all be done at the same time.
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Message 1645133 - Posted: 22 Feb 2015, 0:28:58 UTC - in response to Message 1645131.  

Gotta love those "That can't be happening... but it is happening" moments.

Thanks for the update before you get back to your other 50 things that need to all be done at the same time.

Fifty? Last I heard it was 159 :)

Thanks for the update Eric :)

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Message 1645159 - Posted: 22 Feb 2015, 3:17:30 UTC

Thank you for the update Pookers. You may now have a cupcake.
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Message 1645180 - Posted: 22 Feb 2015, 4:40:09 UTC

The harder you run, the behinder you gets....

Your efforts are appreciated.

:D..g

"Sour Grapes make a bitter Whine." <(0)>
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Message 1645205 - Posted: 22 Feb 2015, 6:04:08 UTC

Thank you for the update and all your dedication.

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Message 1645212 - Posted: 22 Feb 2015, 6:26:38 UTC

Thanks for the update Eric.


BTW the shirt count is less than seven. Will try and update thing tomorrow.
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Message 1645233 - Posted: 22 Feb 2015, 10:03:26 UTC - in response to Message 1645159.  

Thank you for the update Pookers. You may now have a cupcake.


Not indulging in bribery were we?


Thanks for the update Eric, and I trust you enjoyed the cupcake ;-)
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Message 1645244 - Posted: 22 Feb 2015, 10:30:11 UTC

Thank you for the update, Eric:)
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Message 1645265 - Posted: 22 Feb 2015, 12:18:54 UTC - in response to Message 1645244.  

Thank you for the update, Eric:)


+100


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Message 1645523 - Posted: 23 Feb 2015, 6:09:58 UTC - in response to Message 1645233.  

Thank you for the update Pookers. You may now have a cupcake.


Not indulging in bribery were we?


Thanks for the update Eric, and I trust you enjoyed the cupcake ;-)


Of course she was:) I bet that cupcake was awesome too!
And thanks for the update Eric. We know you have many irons in the fire.
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Message 1645926 - Posted: 24 Feb 2015, 9:28:25 UTC - in response to Message 1645119.  

Eric, thanks for the update.
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Message 1646100 - Posted: 24 Feb 2015, 22:51:20 UTC

Thank's for the update Eric
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Message 1647301 - Posted: 27 Feb 2015, 15:09:56 UTC - in response to Message 1647299.  

New fangled? Unix has been around a lot longer than MS-DOS! :-P
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Message 1647326 - Posted: 27 Feb 2015, 16:34:47 UTC - in response to Message 1647307.  
Last modified: 27 Feb 2015, 16:35:05 UTC

MSDOS was based off CP/M which was developed in 1973-1974. So even the beginnings of both programs are in the same timeline.
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Message 1647335 - Posted: 27 Feb 2015, 16:59:10 UTC

Remember PET DOS? Now THERE was a stable system.

:))

"Sour Grapes make a bitter Whine." <(0)>
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Message 1647432 - Posted: 27 Feb 2015, 20:24:45 UTC - in response to Message 1647335.  

Remember PET DOS? Now THERE was a stable system. :))

A fine example of KISS implementation! :-)
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Message 1649125 - Posted: 4 Mar 2015, 14:21:16 UTC

Can we get status update, please?
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Message 1649129 - Posted: 4 Mar 2015, 14:24:35 UTC - in response to Message 1649125.  

Can we get status update, please?

+1
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