MobileRead Forums - View Single Post - Error communicating with device

ViktorShchedrin · 02-19-2011, 08:12 AM

Hi Kovid, hard13

thanks for the 0.7.46 and https://www.mobileread.com/forums/sho...d.php?t=121633

i know about Memtest86 etc, my current desktop is about 6 year old, HDD 1/2 year old, free disk space about 125Gb, no problem with hardware, i suppose.

sorry for many details - i think may be it will help to understand problem - library folder - total about 22000 ebooks authors 6500 - 10054 epubs 11536 lit 1472 mobi files about 23 Gb disk space, metadata.db about 23Mb have duplicates, i have not idea how to sort everything by batch, only 4000 have isbn.

Preferences:
- excluded both Calibre library folder and Calibre folder from anti-virus scanning
- lower calibre job priority to low

the result of the Calibre run
98 mins 36 sec
Error communicating with device
Runtime error
Calibre crashed

faster than previous version about 10% - 54% 51m22s 62% 59m09s 72% 69m32s ( my last test - yesterday -0.7.45 - 109m35s 100% job finished and Runtime error shown and crashed )

start again
command line "calibredb restore_database --really-do-it"
memory usage from 57Mb to folder J 124Mb folder P 176Mb and folder Z 200Mb, updating database memory usage starts from 200Mb and used no more than 220Mb, 15% - 225Mb 20% 232Mb 25% 239Mb 38% 255 43% 262Mb 50% 274Mb 57% 281Mb 65% 286Mb 75% 298Mb 95% 323Mb 99% 358Mb (about 1,0-1,4Mb per 1% inreased linearly i think), cpu usage between 2-8% up to 60%, total work time about 4 hours ( or more precisely - 228 mins) - crashed -

Restoring database failed with error
Traceback ( most recent call last):
File "site-packages\calibre\library\restore.py", line 105, in run
File "site-packages\calibre\library\restore.py", line 231, in replace_db
WindowsError: [Error 2]

questions, sorry -
1) can i stop the job ? - "get list of books on device" before to start Calibre usual way ? some editing of Calibre config file or so ?
2) and start job "get list of books on device" manually ? restart Calibre after edit the config ?
3) may be good idea to have comand line exe for the job "get list of books on device" ?
4) what wrong with command line "calibredb restore_database --really-do-it" ?

any advice - many thanks

02-19-2011, 08:12 AM	#6
ViktorShchedrin Connoisseur Posts: 56 Karma: 10 Join Date: Jan 2011 Location: Ukraine Kiev Device: sony prs 505	0.7.46 and the PC with a 22000 books library... Hi Kovid, hard13 thanks for the 0.7.46 and https://www.mobileread.com/forums/sho...d.php?t=121633 i know about Memtest86 etc, my current desktop is about 6 year old, HDD 1/2 year old, free disk space about 125Gb, no problem with hardware, i suppose. sorry for many details - i think may be it will help to understand problem - library folder - total about 22000 ebooks authors 6500 - 10054 epubs 11536 lit 1472 mobi files about 23 Gb disk space, metadata.db about 23Mb have duplicates, i have not idea how to sort everything by batch, only 4000 have isbn. Preferences: - excluded both Calibre library folder and Calibre folder from anti-virus scanning - lower calibre job priority to low the result of the Calibre run 98 mins 36 sec Error communicating with device Runtime error Calibre crashed faster than previous version about 10% - 54% 51m22s 62% 59m09s 72% 69m32s ( my last test - yesterday -0.7.45 - 109m35s 100% job finished and Runtime error shown and crashed ) start again command line "calibredb restore_database --really-do-it" memory usage from 57Mb to folder J 124Mb folder P 176Mb and folder Z 200Mb, updating database memory usage starts from 200Mb and used no more than 220Mb, 15% - 225Mb 20% 232Mb 25% 239Mb 38% 255 43% 262Mb 50% 274Mb 57% 281Mb 65% 286Mb 75% 298Mb 95% 323Mb 99% 358Mb (about 1,0-1,4Mb per 1% inreased linearly i think), cpu usage between 2-8% up to 60%, total work time about 4 hours ( or more precisely - 228 mins) - crashed - Restoring database failed with error Traceback ( most recent call last): File "site-packages\calibre\library\restore.py", line 105, in run File "site-packages\calibre\library\restore.py", line 231, in replace_db WindowsError: [Error 2] questions, sorry - 1) can i stop the job ? - "get list of books on device" before to start Calibre usual way ? some editing of Calibre config file or so ? 2) and start job "get list of books on device" manually ? restart Calibre after edit the config ? 3) may be good idea to have comand line exe for the job "get list of books on device" ? 4) what wrong with command line "calibredb restore_database --really-do-it" ? any advice - many thanks