Re: [Firebird-devel] isc_dpb_dbkey_scope

2022-06-03 Thread Pól Ua L . via Firebird-devel
Hi again Jim, and thanks for your replies - it's interesting reading about the history of MVCC inter alia - see below. Your answers bring up a couple of questions though. > One day I was driving down Route 3 in Manchester, New Hampshire, that > rather than keeping multiple page images, I coul

Re: [Firebird-devel] Operating system call pthread_mutex_lock failed. Error code 22 #Fb 4.0.1 #Centos 7

2022-06-03 Thread Alex Peshkoff via Firebird-devel
On 5/27/22 23:06, Lucas Schatz wrote: Installed, now wait for the error, probably only next week With that dump I've more or less understood where bug happens. But fixing that may be not quick. I'm almost sure that use of big enough linger (600 or 900 or even bigger) should make this bug ha

Re: [Firebird-devel] Operating system call pthread_mutex_lock failed. Error code 22 #Fb 4.0.1 #Centos 7

2022-06-03 Thread Lucas Schatz
Hello Just do clarify, 600-900 seconds or ms? I think makes sense to be ms, anyway I'll put 30 seconds just to be sure, because almost every second the DB gets attached As soon as I have news I'll post here (hope not), at most probably next month I'll give a feedback Thanks Em sex., 3 de jun. de

Re: [Firebird-devel] Operating system call pthread_mutex_lock failed. Error code 22 #Fb 4.0.1 #Centos 7

2022-06-03 Thread Alex Peshkoff via Firebird-devel
On 6/3/22 14:58, Lucas Schatz wrote: Hello Just do clarify, 600-900 seconds or ms? I think makes sense to be ms, anyway I'll put 30 seconds just to be sure, because almost every second the DB gets attached As soon as I have news I'll post here (hope not), at most probably next month I'll give a

Re: [Firebird-devel] Write Ahead Logs. MVCC

2022-06-03 Thread Jim Starkey
Traditional database journalling logged page before-images (to allow a database to be rolled back to a point in time), page after-images (to roll forward from a backup for disaster recovery), or both.  Ether technique eliminates a single point of failure (the disk). Interbase originally offere