Maintenance damaged GDB
Multiply the wrong page's number by the page size of the database. Convert the number to hex value Open the database with a hex editor, go to offset - the number you calculated. At that position you will see the wrong number - change it to the right one, save and you are ready to backup restore. In your case if the page size is 4096(4K). We are working on a new approach to community-based support and during this transition period we are not adding any new threads to this forum. All Questions; Why wont my web page show up when i type in the address Me Too. Question Updated 9 years ago. Do not know what I am doing wrong.
Repair damaged GDB
Hello,
I'michael getting the pursuing error when trying to acess a GDB file:
Data source file seems corrupt
wróng page typé
page 664 is definitely of wrong type (anticipated 7, discovered 5)
I attempted to recuperate data with gfix, gbák and isqI but I couIdn't link to the DB; it appears it'beds damaged at a extremely primary level.
If anybody provides encountered the exact same, is presently there any possibility to recover the information, using Interbase ór thrid-párty SW?
And whát leads to this crime? I've seen about IB bugs, concurrent strings, garbage collectors, but no specific factors. Any help?
Thanks a lot in advance
I'michael getting the pursuing error when trying to acess a GDB file:
Data source file seems corrupt
wróng page typé
page 664 is definitely of wrong type (anticipated 7, discovered 5)
I attempted to recuperate data with gfix, gbák and isqI but I couIdn't link to the DB; it appears it'beds damaged at a extremely primary level.
If anybody provides encountered the exact same, is presently there any possibility to recover the information, using Interbase ór thrid-párty SW?
And whát leads to this crime? I've seen about IB bugs, concurrent strings, garbage collectors, but no specific factors. Any help?
Thanks a lot in advance
My firebird SQL data source got damaged lately, and I'm not sure why.
The mistake I obtained when it occurred was:
'Mistake while performing SQL declaration:in- SQLCODE: -902n- database file seems corrupt (/home/firebird/mydb.fdb)n- wrong page typen- page 305659 can be of wrong type (expected 7, found 109)in- inner Firebird persistence check (error during savepoint backout (290), file: exe.cpp line: 4056)', -902, 335544335)
The declaration performed before the error had been an place or update, but I perform a lot of those (in little batches) before doing a commit that I create certain to do each time.
After fixing it with gfix, I observed that the transaction count (and Era) beliefs got reset down. I believe this regular, but I'd like to know if it'beds normal to have got these figures boost all the time.
I furthermore guess not really getting a sweep span in the damaged version is part of the issue?
Right here are usually fbstat output for thecorrupteddocument, and below for thesetdocument.
Actual issue: is certainly now there a potential link between the crime of the database and the higher quantities in the statistics above?
I learn the manual but I doubt the corruption is associated. Just need to create certain since I don't know why these high numbers proceeded to go back straight down after making use of
gfix
on the damaged file.I also wear't recognize why there is usually no sweep span displaying for the corrupted document.
Possibly I shouldn't talk to on StackOverflow since it't not straight programming related? Is definitely there a much better place for this kind of query?
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1 Solution
The error indicates a data corruption of the data source on a storage space level. This cannot end up being triggered by the transaction count number. The error
wrong page typen- page 305659 is certainly of wrong type (anticipated 7, discovered 109)
Means that Firebird anticipated to read through page of type 7 (index B-tree page), but got type 109 (which is definitely not a identified page type). How this issue arrived about is certainly hard to say for certain, but leads to can end up being issues like bugs in Firebird, strength interruptions or Firebird process killed during write of that page (or another page that improperly pointed to an given but abandoned page), regular tampering with the database file, poor areas on the difficult get, etc.
Your transaction account is usually not 'extremely higher'. The deal number will increment with each deal began, until you strike the optimum (231- 1 in Firebird 2.5 and earlier, or 248in Firebird 3 and higher), at which stage you need to backup and regain the data source to reset the purchase count. The purchase amount of 474956 is between 218and 219, in some other words and phrases there has been enough deal space left.
Likewise theGenerationindicates the amount of periods the header page (very first page of the data source document) provides been recently rewritten. This occurs at minimum as soon as for each deal begin, and for some other adjustments.
The reason that the purchase count was reset, is definitely because you backed up and refurbished the database making use of
gbak
. Gbak creates a logical backup of the database (the framework and data, but not really the actual layout of datapages), and when you recover it, a new data source will become developed and the framework and information will be written in 2 or more transactions (based on config options of gbak a one deal will end up being used for all information, or a transaction per desk).The sweep time period was established because on preliminary development of the database it wasn't, which suggests the default value of 20000, and now on restore it has been set clearly.
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