Re: [Virtuoso-users] Page set checksum error on backup_online.

2016-09-03 Thread Hugh Williams 
Hi Piret,

Have you attempted a  "Crash Recovery When The Normal Crash Recovery Fails” 
which rebuild schema and system keys etc as detailed in  the docs at:

http://docs.openlinksw.com/virtuoso/backup_recovery/ 


as I don’t see why you cannot try this ?

Also, do you have "Log Audit Trail" and "On-line Backups" enabled as indicated  
the backup docs above, which is always recommend such you can can always 
recover to the last known good state of the database ?

Best Regards
Hugh Williams
Professional Services
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> On 2 Sep 2016, at 09:26, Piret Lattikas  wrote:
> 
> Hi, Hugh.
> 
> Thank you for your response.
> 
> Yesterday evening another virtuoso crashed during the backup set by 
> virtuoso inner scheduler with the same error:
> 
> 20:13:12 Backing up page 293
> 20:13:12 page set checksum ck=d368ab6a pck=5368ab6a xor = 8000
> 20:13:12 /usr/bin/virtuoso-t() [0xb07467]
> 
> 20:13:12 /usr/bin/virtuoso-t() [0xb15a4c]
> 20:13:12 /lib/x86_64-linux-gnu/libpthread.so.0(+0x8182) [0x7ff19d613182]
> 20:13:12 /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7ff19cc1d47d]
> 20:13:12 GPF: disk.c:298 page set checksum error
> 
> Today I run the integrity check as you suggested and it also stopped 
> with the following error:
> 
> 07:57:36 Backup to /dev/null started
> 07:57:36 Dumping the schema tables
> 07:57:36 Dumping the registry
> 07:57:36 Dumping the schema done
> 08:05:05 /usr/bin/virtuoso-t() [0xb07467]
> 
> 08:05:05 /usr/bin/virtuoso-t() [0xb15a4c]
> 08:05:05 /lib/x86_64-linux-gnu/libpthread.so.0(+0x8182) [0x7fb0752c9182]
> 08:05:05 /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) [0x7fb0748d347d]
> 08:05:05 GPF: page.c:899 out of order
> 
> Suggesting that our virtuoso is corrupt, but making a crash dump is not 
> an option for us due to the error in the database after restoring with 
> date fields, that I have reported already.
> The previous virtuoso-users mail list thread: 
> https://www.mail-archive.com/search?l=virtuoso-users@lists.sourceforge.net&q=subject:%22Re%5C%3A+%5C%5BVirtuoso%5C-users%5C%5D+SQL+Error+on+insert+with+virtuoso+7.2.1%22&o=newest.
>  
> AS I remember I sent a test scenario how I could reproduce it to 
> Patrick, but have not gotten any feedback on the matter yet.
> 
> The version of virtuoso:
> # virtuoso-t -?
> Virtuoso Open Source Edition (Column Store) (multi threaded)
> Version 7.2.3-dev.3215-pthreads as of Jan 20 2016
> Compiled for Linux (x86_64-pc-linux-gnu)
> Copyright (C) 1998-2015 OpenLink Software
> 
> What can cause the "page.c:899 out of order" corruption, to know how to 
> avoid it? We have been using virtuoso for some time without any problems.
> 
> Best regards.
> 
> Piret
> 
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Re: [Virtuoso-users] Virtuoso CORS support missing vary header

2016-09-03 Thread Hugh Williams 
Hi Adrian,

ACAO header can be set as detailed at:


http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtTipsAndTricksGuideCORSSetup
 

http://enable-cors.org/server_virtuoso.html 


Not sure about Vary header though ?

Best Regards
Hugh Williams
Professional Services
OpenLink Software, Inc.  //  http://www.openlinksw.com/
Weblog   -- http://www.openlinksw.com/blogs/
LinkedIn -- http://www.linkedin.com/company/openlink-software/
Twitter  -- http://twitter.com/OpenLink
Google+  -- http://plus.google.com/100570109519069333827/
Facebook -- http://www.facebook.com/OpenLinkSoftware
Universal Data Access, Integration, and Management Technology Providers

> On 1 Sep 2016, at 14:55, Adrian Gschwend  wrote:
> 
> Hi group,
> 
> I've enabled CORS as described on
> http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtTipsAndTricksCORsEnableSPARQLURLs.
> 
> 
> This result in the server mirroring the value of the Origin header in
> ACAO-Header. I think because of this "Origin" should be the value of the
> Vary-Header.
> 
> Is there a way to set the Vary-Header correctly?
> 
> thanks
> 
> Adrian
> 
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