Missing Transaction Logs

Jan 19, 2007

can anyone please point me in the right direction as to how to go about rebuilding the transaction log files on a database?

here is the scenario:

1 - transaction log drive failed and transaction log file is basically gone.

2 - database file is fine.

3 - backup is too old or for all intents and purposes non-existent.

the server initially showed the database as suspect. the database was detached and an attempt was made to attach it with a recovered copy of the transaction log file but apparently it was too corrupted and the server didn't like it.

any suggestions would be greatly appreciated.

by the way, after looking at some of the posts here, i tried ApexSQL Log and Red-Gate Rescue bundle but these tools seem to require a database to at least show up on the database list, even if it is suspect.

the database doesn't even show up on the list since it was detached.

thanks in advance.

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May 28, 2008

Good day. I am a non-programmer but one tasked to "check" on the recent error in our company's systems.

In summary, most, if not all Tables were deleted from the different databases. Add to that, the logs prior to the event were also lost or deleted. Yes we do have back ups but restoring wasn't that simple. Another domain server was corrupted causing further delays in the restoration.

This is the second time it has happened and the events were 31 days apart. We would like to identify the causes for our preventive actions. Is there a hardware/software problem that may have caused these? Of course, we would like to rule out that it was done intentionally... but if you guys think otherwise, i'd like to further ask how we can validate the theory.

Thank you very much...

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Aug 30, 2000

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Aug 2, 2004

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Jan 8, 2008

Hello,
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Jun 5, 2002

I have seen quite a few people post this type of problem, but I am finding few solutions. Your advice and/or experiences are greatly appreciated.

Here's my scenario:

Environment: Windows NT 4.0 SP 6, SQL 7.0 (set up for Transactional Replication)

Problem: We have several remote dB machines configured for full recovery. On these machines are several dB's that are capturing aprox. 280 data points per second per unit. (Each dB represents one unit, and we have 21 units) No problem here. The problem is the transaction logs, that obviously grow profusely, will not SHRINK after, backups, dbcc commands and TSQL has been issued in failed attempts to shrink the logs. (in other words we've tried everything)

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Jun 7, 2001

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May 4, 2000

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Jan 19, 2001

Hi all,

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Aug 28, 2000

Hi all,

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Jul 11, 2000

I am currently having a problem with a transaction log not emptying even when backed up and truncated. I have done a full database backup and then a transaction log backup expecting this to flush the log however the log is not emptied and it is growing larger and larger. Even when I truncate the log it still doesn't free any space up. Can anybody out there spot the fundemental error in my working??? most grateful. Andy (SQL allegedly)

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May 24, 2003

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Aug 20, 1999

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Aug 11, 1999

I have a MS SQL Server 6.5/SP5A database running on NT 4.0/SP4 Enterprise Edition with MS Cluster Server. On my Production box, I dump the transaction logs every 30 minutes. I need to recreate a point in time on a separate TEST box with the same hardware/software. I created a "DBA database" from a previous night of Production - no problem. However, when I start applying the transaction logs, it complains about being out of sequence. The timestamps that it is reporting are accurate for the transaction logs, but it is basically using the database load time to compare it with. (Granted I am moving from one box to another, but I didn't think this would be a problem). I created a "DBA database" on Production, went through the same steps, and it takes the database load and the transaction logs. I am assuming that the sequence numbers on the transaction logs are identified internally on the file, not per server? Ideas as to why it would complain on an out of sequence condition (Error 4305) when I move to a different box?

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Transaction Logs Full

Aug 31, 2001

when i try to delete the records it gives the errror
suggest me how to deal with this problem
=====
Msg 1105, Level 17, State 2
Can't allocate space for object 'Syslogs' in database
'armaster' because the 'logsegment' segment is full. If you ran out of
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Nov 1, 2004

I have just come from an Oracle background and am trying to equate SQL server methodologies to Oracle. I have a couple of questions based on the same principle which is the usage of multiple transaction logs. This is what I have been able to find out from the docs and other posts:

If you have multiple transaction logs they will all be used in a sequential manner before being wrapped around. That is, they will all be filled before they are reused.

My first question is will they be used sequentially or concurrently. SQL Server seems to stripe everything so I am inclined to believe the latter. This question has been asked before but from other posts/docs there seems to be a difference of opinion. I am of course equating transaction logs to redo/archived logs so I want to know categorically (links would be greatly appreciated) as it will have a huge impact on any disaster and recovery plans that I implement.

The second question is a spin off and may or may not be relevant dependant on the answer of the first. If the transaction logs are written to concurrently, that is, entries are striped, why bother with multiple logs? I don't see any benefits. In fact, in a recovery scenario recovering transactions from mutliple striped logs would appear to adversely affect MTTR.

Feel free to point out the errors of my ways as I am all ears and eager to learn.

Thanks in advance.

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Nov 5, 2004

All,

I am new-ish to SQL servers, and I am having a real issue with my tansaction logs. I am running a SQL 7.0 server, on a NT 4 platform, with SQL SP4 and NT SP 6a.

I recieve error 4213, which according to the Microsoft website means that a non-logged operation has occured. So, first question, what is a non-logged operation?

I understand that essentially the error is saying that by performing the transaction log it will not be able to restore the DB to a point in time (i.e. the point of a TRN backup), but I am at a loss as to what could have caused this. Any Ideas?

I have scripted the job (which can be seen at the end of this thread), and I don't think that I have done anything wrong, but if you can check it would be most helpful. I have also ensured that the 'Truncate on checkpoint' is not selected.

Please can someone start pointing me in a direction that can help.

Thanks in advance.

Stewart

Script:

set nocount on
declare @dbname varchar(40)
declare @dumplogname char(80)
declare @dumppath varchar (30)

select @dumppath = 'D:MSSQL7BACKUP'

declare dblist_cursor cursor
for select name
from master..sysdatabases
where name not in ('model', 'Northwind', 'pubs', 'tempdb', 'msdb', 'master', 'distribution')

open dblist_cursor

fetch next from dblist_cursor into @dbname

while @@fetch_status = 0
begin
select @dumplogname = @dumppath + @dbname + '_tlog_'
+ cast(datepart(year, getdate()) as varchar(10))
+ replace(str(cast(datepart(month, getdate()) as varchar(10)), 2, 0), ' ', '0')
+ replace(str(cast(datepart(day, getdate()) as varchar(10)), 2, 0), ' ', '0')
+ replace(str(cast(datepart(hour, getdate()) as varchar(10)), 2, 0), ' ', '0')
+ replace(str(cast(datepart(minute, getdate()) as varchar(10)), 2, 0), ' ', '0')
+ '.TRN'

BACKUP LOG @dbname
TO DISK = @dumplogname
WITH INIT, NOUNLOAD, NOSKIP, STATS = 10, NOFORMAT

RESTORE VERIFYONLY FROM DISK = @dumplogname
WITH FILE = 1, NOUNLOAD

fetch next from dblist_cursor into @dbname
end

deallocate dblist_cursor

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Dec 14, 2004

Hi All,

Just after some feedback on a scenario where we have full logging setup on one of the databases, and the transaction logs are backed up every 60min. At 0000-0100 the log jumps from being a few thousand k up to over 1.7gb.
I did some profiling for this time, and it appears that this jump is related to the reindexing of the indexes on the database.

Is this normal for the log file to jump in size so much? Or is this an indication of some other issue (potentially with the indexes)?

Is there any way that the reindexing can be excluded from the log files or is this a necessity?

Thanks in advance for your help.

Cheers
Troy

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