I have lost my "Trak.db" there is log file is available is it possible to recover this one through log file? use of Log files?
The best you can do is to run DBTran against the log file and it will generate a SQL file for the statements that were executed while that log was running. Of course, whether or not the log will contain all your data is going to be based on how you were logging/truncating/backing up. Technically it is possible if you have all your logs and the schema.
For reference: http://www.ianywhere.com/developer/product_manuals/sqlanywhere/0901/en/html/dbdaen9/00000590.htm
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I just started using Spring Batch and I don't know how I can implement my business need.
The behavior is quite simple : I have a directory where files are saved. My batch should detect those files, import them into my database and move the file to a backup directory (or an error directory if the data can't be saved).
So I create chunks of 1 file. The reader retrieve them and the processor imports the data.
I read Spring Batch create a global transaction for the whole chunk, and only the ChunkListener is called out of the transaction. It seems to be OK, but the input parameter is a ChunkContext. How can I retrieve the file managed in the chunk ? I don't see where it's stored in the ChunkContext.
I need to be sure the DB accepts the insertions before choosing where the file must be moved. That's why I need to do that after the commit.
Here is how you can proceed:
Create a service (based on a file system watching API or something like Spring Integration directory polling) that launches a batch job for the new file
The batch job can use a chunk-oriented step to read data and write it to the database. In that job, you can use a job/step execution listener or a separate step to move files to the backup/error directory according to the success or failure of the previous step.
Let's say I connect to the Rundeck UI at <server>:4440. I construct a job, schedule it to run every 15 min., then wait a few days. Then, I want to do some analysis of the Job runlogs, gathering some statistics from logging statements I added. The problem is... where are the logs? Are they somewhere on <server>? Or on some other node (if so, what server and what file path).
I know I can download the logs, but they're big, so I'd rather do the statistics gathering close to where the log data live.
The execution logs outputs are stored in the location specified in your framework.properties file. By default:
framework.logs.dir=$RDECK_BASE/var/logs
"Directory for log files written by core services and Rundeck Server’s Job executions"
ref. Configuration File reference.
Hope it helps!
Why is it that when I type 'mongod -f \pluralsight\mongod.conf' (path of my conf file) in terminal, I get the following flush spam in my log file? :
Is this normal?
Here is my configuration file in case you need it.
I recently installed MongoDB and I just don't want a file that is logging that my storage is being flushed, seems like poor data management. I'm not sure what is available to me to address this, or if this is normal and permissible, or if maybe there's something I'm doing wrong when I started this project.
I figured it out, it's because in my mongod.conf file I had the verbose property set to "verbose=vvvvvv". I set it to "verbose=vvv" so it shows less info on logged.
I have two drives A and B. Using a python script I am creating some files in "A" drive and I am running a powerscript which copies all the files in the drive A to drive B in the interval of 1 sec.
I am getting this error in my powershell.
2015/03/10 23:55:35 ERROR 32 (0x00000020) Time-Stamping Destination
File \x.x.x.x\share1\source\ Dummy_100.txt The process cannot access
the file because it is being used by another process. Waiting 30
seconds...
How will I overcome this error?
This happened is because the file is locked by running process. To fix this, download Process Explorer. Then use Find>Find Handle or DLL, find out which process locked this file. Use 'taskkill' to kill that process in commandline. You will be fine.
if you want to skip this files you can use /r:n that n is times of tries
for example /w:3 /r:5 will try 5 time every 3 seconds
How will I overcome this error?
If backup is, what you got in mind, and you encounter in-use files frequently, you look into Volume Shadow Copies (VSS), which allow to copy files despite them being ‘in use’. It's not a product, but a windows technology used by various backup tool.
Sadly, it's not built into robocopy, but can be used in conjunction with it. See
➝ https://superuser.com/a/602833/75914
and especially:
➝ https://github.com/candera/shadowspawn
It could be many reasons.
In my case, I was running a CMD script to copy from one server to another, a heap of SQL Server backups and transaction logs. I too had the same problem because it was trying to write into a log file that was supposedly opened by another process. It was not.
I ran many IP checks and Process ID checkers that I ran out of knowing what was hogging the log file. Event viewer said nothing.
I found out it was not even the log file that was being locked. I was able to delete it by logging into the server as a normal user with no admin privileges!
It was the backup files themselves by the SQL Server Agent. Like #Oseack said, there may have been the need to use another tool whilst the backup files themselves were still being used or locked by the SQL Server Agent.
The way I got around it was to force ROBOCOPY to wait.
/W:5
did it.
I've wrote the code that creates full backups of my ESENT database, using JetBeginExternalBackup API.
Following the MSDN guidelines, I backed up every file returned by JetGetAttachInfo and JetGetLogInfo.
I've made the backup, erased old database, and copied the backup data to the database folder.
The DB engine was unable to start, the JetInit error code is "JET_errMissingLogFile".
I've checked the backup, it only contains the database file, and "<inst>XXXXX.log" log files. It lacks the current log file (I'm using circular logging, BTW).
Is there any way to restore such backup?
I don't want to use JetExternalRestore API because it's too complex: I don't need to restore to another location, I don't understand why there're 3 input folders not 2, and I don't know the values to supply in genLow and genHigh arguments.
I do need external backups: the ESENT database is used by ASP.NET on a remote server, and I'm backing it up over the Internet.
Or, maybe there's a way to retrieve the name of the current log file, and I should just add it to the backup?
Thanks in advance!
P.S. I've got no permissions to span processes on my web server, so using eseutil.exe is not an option.
Unpack all backed up files to a single folder.
Take the name of your main database file. Replace extension to .pat. Create zero-length file with that name, e.g. database.pat.
After this simple step, call JetRestoreInstance API, it will restore the backup from that folder.