Reconstructing a database.

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3
votes
1answer
4k views

Postgres is stuck in recovery mode

I have a stand-alone instance of PostgreSQL which is in recovery mode. It has been saying 2014-03-24 18:45:57 MDT FATAL: the database system is starting up For many hours, and ps shows: postgres ...
4
votes
0answers
268 views

RDS MYSQL instance rebooted and won't load INNODB table

So my production db in RDS apparently either crashed or was rebooted during a version update, and upon being restarted mysql couldn't load one of the innodb tables: as evidenced by the following error ...
1
vote
3answers
252 views

Is bulk-logged recovery model ever a good choice if point-in-time restore is not needed?

Is the Bulk-Logged recovery model in SQL Server ever preferable to Simple if point-in-time restore is never needed? I have read many articles about transaction log models, but cannot find a clear ...
0
votes
1answer
101 views

mysql Replication and Point in time Recovery

I have a master and a slave mysql database (version 5.1). Is it possible to dump the database only on the slave side? If I do a dump with mysqldump I have a fulldump. Which files can I use for a point ...
0
votes
1answer
3k views

ORA-15081: failed to submit an I/O operation to a disk

I have a test environment for Oracle single instance on ASM 11.2.0.3. I have restored database from tape and during the recovery, the system crashed by some I/O error. I restarted the server, ...
0
votes
1answer
312 views

Mysql trying to recover from Hard disk failure [duplicate]

Am trying to get a database up and running after having a hard disk crash, got the data recovered. mysql can only start with the innodb_force_recovery set as 5 or 6. When started I can get a table ...
0
votes
1answer
133 views

postgresql backup and recovery

I’m trying to set up backup strategy for a production postgreSQL DB. It will have large amount of data and it should be running 24 X 7. Could you recommend some backup & recovery strategies that ...
1
vote
1answer
184 views

Using “Generate Scripts” with EMERGENCY/SINGLE USER mode

I am trying to create an INSERT script to salvage data from a single table in a corrupt database. I've succesfully put the database online and put it in EMERGENCY / SINGLE USER mode (following this ...
1
vote
3answers
1k views

Why is Mongo stuck in STARTUP2?

I have a Mongo replica set with a few secondaries. A box, which hosts a secondary instance, crashed and lost the database. I started the secondary Mongo instance again and now it's stuck in STARTUP2 ...
0
votes
1answer
56 views

MySQL warm up time after restart because of lost connection

MySQL 5.6.10 on Windows 7. I'm cleaning up and paring down a large INNODB table. Its .ibd file is originally 22 gigs. While I was in the middle of an ALTER, dropping some columns, the mysqld.exe ...
2
votes
4answers
5k views

SQL Server mirrored database is stuck in recovery mode

I have a database that is stuck in recovery mode for few days already. There are multiple threads about this, but the solutions there don't work for me. Here is what I tried already: RESTORE ...
2
votes
2answers
624 views

View scripts ran by a specific user?

I read in a stackoverflow post that you can restore scripts from the past 24 hours by using this query: Use <database> SELECT execquery.last_execution_time AS [Date Time], execsql.text AS ...
3
votes
1answer
10k views

Recover MySQL database from data folder without ibdata1 from ibd files

My WAMP directory accidentally get deleted by another user. Only data folder in MySQLis available. And, in that only database-folders (folders in "\bin\mysql\mysql5.6.12\data\" with name of databases) ...
0
votes
0answers
36 views

Preserving tablespace and databases from previous install?

I goofed and destroyed my postgresql 9.2/postgis 2.1 installation under freebsd 9.2 by trying to install mapnik which, for my inconvenience, overwrote it with 9.0. I have, on another spindle, a ...
0
votes
0answers
1k views

Oracle Transaction recovery: lock conflict caught and ignored

In alert log there are a lot of "Transaction recovery: lock conflict caught and ignored" statements. I've found some information, that this error is caused when there is an active dead transaction. ...
1
vote
1answer
291 views

Firebird database recovery and protection

I'm sure many companies are running critical Firebird database servers in production 24/7. Other than regular backups, what backup/recovery/protection techniques are available? I am also interested in ...
3
votes
2answers
11k views

RMAN list archivelogs that are needed for to recover specified backup

I've taken backup of datafiles in 31.12.2013. It completed datafile backups successfully, but archivelog backups failed. Now, I want to determine what archivelogs should I backup to be sure that my ...
0
votes
2answers
2k views

why archived log size is small but fast recovery area still has a lot free space

when recovery database I met a strange problem,my recovery script as follow: RUN { SET UNTIL TIME 'DEC 25 2013 09:00:00' ; RESTORE DATABASE; RECOVER DATABASE; } but rman report as ...
0
votes
0answers
136 views

Recover deleted records from filestream-enabled table

I have a SQL Server database that I wrongly executed a delete script on it that removed an important records from a filestream-enabled table called Images. after the execution immediately I created a ...
1
vote
0answers
253 views

InnoDB: error: space object of table

131212 10:35:18 InnoDB: error: space object of table 'main/wp_m_membership_levels', InnoDB: space id 119 did not exist in memory. Retrying an open. 131212 10:35:18 InnoDB: error: space object of ...
1
vote
1answer
2k views

Recovering MYSQL databases

I needed to reinstall the WAMP server on Windows and in the process it reinstalled MYSQL as well. Now when I login to phpmyadmin, I can see my databases with the tables listed on the left side ...
1
vote
0answers
781 views

Analyzing MySQL crash due to corrupt InnoDB page. Failed page checksum

Lately we have been pestered by infrequent sporadic database crashes on one of our MySQL instances. Each time it is due to a failed page checksum. It happens on a specific database but spans multiple ...
0
votes
1answer
6k views

Mysql backup from ibdata1, ib_logfile1, ib_logfile0

I accidentally deleted my word press mysql DB. Below is the list of log files that i see in my directory where i am hoping i can get back some of my data. I actually converted the first file ...
0
votes
1answer
661 views

FATAL: catalog is missing 1 attribute(s) for relid 2662

I have a server with PostgreSQL9.1-903 (Windows 7 Professional). After a power cut my database is inaccessible (I presume that the database is corrupted). The postgreSQL service starts but the ...
0
votes
2answers
201 views

How to guess or recover a timestamp conversion in sqllite?

I am in the middle of tiny forensic effort =) I am trying to transfer transactions from Money IQ (IOS) to My Wallet+ (IOS) as both apps use sqlite. Money IQ uses a standard unixepoch timestamp. ...
1
vote
1answer
422 views

Recover corrupted blocks in Oracle 10g XE

I am using Oracle 10g XE. I've noticed corrupted block error in datafile 1 in alert log. As I've found Oracle XE doesn't support Block Media Recovery(needs to be Enterprise Edition). So I did the ...
3
votes
1answer
94 views

Update old database with SQL dump

I had to recover a database with a some months old full backup. I have however in my possession a most recent but unfortunately incomplete SQL dump for this same database done with mysqldump. Is ...
1
vote
1answer
219 views

Starting up sql server after hard-drive recovery

So I'm in a bit of a pickle. My primary work computer has recently crashed and some of the windows files were corrupted I tried repairing but did not work. This computer was running a program that ...
0
votes
1answer
733 views

Getting File not found error doing point in time database restore in SQL Server 2008

So I'm testing out some of our DR stuff and tried to restore a point in time backup from one of our main databases to a new database on the same server. I am admin on the box and I'm RDP'd into the ...
1
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0answers
91 views

Configuring MySQL for Power Failure

I have absolutely no experience with databases and MySql. Now the problem is I have an embedded device running a MySQL database with a web based application. The problem is when I shutdown my embedded ...
1
vote
1answer
239 views

Recover oracle 10g database from old data files

I have an Oracle 10g database. Unfortunately, our machine and system crashed and all the backups and Oracle archive logs, but we have old image copies of our data files and one of the control file ...
2
votes
2answers
2k views

Postgres corrupted DB recovery

Is there a way to recover data from partially damaged Postgres DB? My HDD was damaged in transport, I was able to recover most of the files but I cannot connect to the DB or use dump: I'm getting ...
-1
votes
1answer
296 views

Recovering a dropped column?

I have a PostgreSQL table: CREATE TABLE essays ( id serial primary key, content text ); I inserted a few rows, then ran: ALTER TABLE essays DROP COLUMN content; How can I recover the ...
6
votes
2answers
511 views

Two Different Sources Taking Transaction Log Backups

I have inherited a database server with SQL Server 2005. The databases have full recovery mode with hourly transaction log backups. There are two sources taking full backups overnight and hourly ...
3
votes
1answer
2k views

What happens if the mysql database's innodb log files are lost?

What I did was /etc/init.d/mysql stop then removed the files: ib_logfile0, ib_logfile1 then modified my.cnf file, variable: innodb_log_file_size and then: /etc/init.d/mysql start and allowed ...
4
votes
1answer
373 views

Is there any interruption of service when switching recovery models?

I need to switch to FULL recovery model for several SQL Server 2008 databases. However these are in production. Whilst doing these things out of hours is good practice I wanted to plan for any down ...
0
votes
3answers
252 views

Oracle DB Recovery

Before I start, I just want to mention that I am not a DBA, I am a programmer/developer who also happens to look after the database. So if I say something wrong, my apologies in advance. We recently ...
3
votes
1answer
863 views

I need help understanding Postgres's archive cleanup functionality

I'm reading http://www.postgresql.org/docs/9.2/static/pgarchivecleanup.html and to me it seems like it will remove any and all WAL segments from my slave server that aren't required to perform ...
4
votes
1answer
5k views

InnoDB log sequence number is in the future

130711 23:03:40 InnoDB: Error: page 23 log sequence number 3336825872455 InnoDB: is in the future! Current system log sequence number 235089. InnoDB: Your database may be corrupt or you may have ...
1
vote
1answer
351 views

Mysqlbinlog statement reading

I am trying to perform a point in time on a specific database using a snapshot and mysql's transaction logs. I am using the following to pull statements from the time of the snapshot to the time of ...
1
vote
0answers
143 views

What is an incremental checkpoint (in the context of indirect checkpoints)?

I was using extended events to trace checkpoint activity of a database with indirect checkpoints enabled. The event stream looks like this: And the details of the selected event are: The ...
11
votes
1answer
12k views

SIMPLE or FULL recovery model for databases?

When should I use the full recovery model and when should I use the simple recovery model for databases? I always used the full recovery model because it is the default, but today i encountered this ...
0
votes
1answer
3k views

The InnoDB log sequence number is in the future

Our site was getting intermittent database errors and I asked my webhost to check what's happening. After some inspection they found that the database has few issues and tried repairing it. Finally I ...
4
votes
3answers
6k views

Transaction Log maintenance when switching to Simple Recovery

Background: I recently inherited 50+ SQL Servers with 450+ databases. The nightly backups are roughly 8TB and, needless to say, we're using more disk space than we'd like. All of the databases are ...
0
votes
1answer
87 views

Recovering Postgres database

OK. I'm in a bit of trouble. I've got an Ubuntu, had Postgres 9.1 installed. There was something wrong with it - I couldn't start it for some reason. Out of panic, I backed up ...
3
votes
1answer
9k views

How can extract the table schema from just the .frm file?

I have extracted the data directory of mysql from a backup and need to get the schema from an old table, however it's a backup from a different machine. I have read a fair number of tutorials today ...
1
vote
3answers
975 views

Restore Oracle tablespace to 2 days before

I have multiple test tablespaces in an Oracle SID. One of the tablespace is updated with wrong data. It works fine 2 days before. I want to restore the tablespace to 2 days before. Can anyone ...
-4
votes
1answer
94 views

Oracle database and data has been corrupted. Is there a way to get it back? [closed]

The Oracle database has been corrupted and both the data and backups were lost in the corruption. Is there anything I can do to recover my data? It would be terrible if it were all lost.
4
votes
1answer
7k views

How to recover/restore corrupted Innodb data files?

A while ago, my Windows 7 system on which a MySQL Server 5.5.31 was running crashed and corrupted the InnoDB database. The weekly backup that's available does not cover all the tables that were ...
2
votes
1answer
843 views

Table corruption: How to perform Innodb Checksum checks in MySQL 5.5 for Windows?

Having a corrupted Mysql 5.5.31 (Windows) database, my question relates to the the top solution provided in How do you identify InnoDB table corruption? , more precisely to the following script that ...