Re: [h2] mydb.trace.db despite TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0
thank you for the hint, that was the problem beside recovering the structure and data of the database, H2 also recovers the already written trace output Am Donnerstag, 18. Juli 2013 10:33:01 UTC+2 schrieb Kartweel: If you look inside the zip file of your backup are there trace files in there? On 18/07/2013 4:14 PM, EDV-Services wrote: Hi Thomas, I thought the same, I thought it could be a bug in my application. Then I restored my latest backup file by using the web interface of H2 by clicking on Tools - Restore - Start. And the result was the same: Trace-output of error messages in trace.db-file even if I remove the trace file before starting to restore. That's why I offered you to send you my backup file so you can try it with the web interface, too. I'm 100% sure, it has nothing to do with my application. The only mistake I could have done was when I created my database the first time and then accessed it without the trace = 0 parameters in my db url. I guess H2 saved the trace parameters TRACE_LEVEL_SYSTEM_OUT = 1 and TRACE_LEVEL_FILE = 1 (default) inside the database files so changing the url parameters later won't affect anything. Nevertheless, thank you for your reply again. Best regards, Michael Am Mittwoch, 17. Juli 2013 18:35:14 UTC+2 schrieb Thomas Mueller: Hi, I definitely use the h2-1.3.172.dll file. Yes, I understand. I understand that my trace-db file contains old dates but I don't understand why Well, the most simple explanation is that those files are old files. Probably your application restored them from somewhere (I think I wrote that already). You need to figure out why this happens. This is your application, and I can't really help you there. This is not a problem of H2. I would like to send you my backup file, so you can try to restore the file on your machine. Sorry, I'm not quite sure how this would help. It seems you need to figure out what's wrong with your application, why it restores old .trace.db files. This is your application, and I'm not able to help you with that. Regards, Thomas On Wed, Jul 17, 2013 at 12:50 PM, EDV-Services edvservi...@web.dewrote: Hi Thomas, thank you again for your reply. I definitely use the h2-1.3.172.dll file. I've downloaded the jar file some days ago and I used IKVM to transform the jar file into a dll file to be able to use H2 in my .NET project. I understand that my trace-db file contains old dates but I don't understand why as I don't know anything about the internal H2 db processes. All I can say is that I delete the trace-file before doing a restore and then that output is created. One explanation is that you restore old files over existing files Thats true. In my application you have a database running and you can do backups and restores whenever you want. When I do a restore, the database already exists. I don't delete the database before I restore an old backup file. Is that the problem? Also true is, that before I haven't used the same URL as now. As I told you, I've added the two parameters TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0; later. Maybe H2 saves the url parameters into the database files on first database connection so if you add these two parameters to your connection URL later, then they won't affect the trace output anymore. I would like to send you my backup file, so you can try to restore the file on your machine. Are you okay with that? If yes, then please tell me your email address. Best regards Michael Am Dienstag, 16. Juli 2013 08:42:16 UTC+2 schrieb Thomas Mueller: Hi, I understand that it doesn't work for your case, but I'm afraid I can't help you much because it works for me, and so far you didn't provide enough information to reproduce the problem. Just a few things I noticed: * You wrote you use the latest version of H2, but in fact the latest error message you got is from an older version (1.3.170). Reason: the build number is included in the error code, which is [42001-170]. So the build is 170. * The .trace.db file contains old dates. You wrote you reproduce the problem now, but the error message starts with 07-09 12:51:43. So it clearly was written at 2013-07-09 and not July 15th. The same with older messages. * You seem to backup and possibly restore files. One explanation is that you restore old files over existing files. * My guess is that you didn't always use the database URL you provided. That's all I can say right now. I don't think this is a bug in H2. Regards, Thomas On Monday, July 15, 2013, EDV-Services wrote: Sorry again, now I deleted all the data in all database tables except for the table EINSTELLUNGEN The full content of the trace.db-file is as follows: 07-09 12:51:43 jdbc[2]: exception org.h2.jdbc.JdbcSQLException: Syntax Fehler in SQL Befehl EINSTELLUNGEN; erwartet
Re: [h2] mydb.trace.db despite TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0
Hi Thomas,
I thought the same, I thought it could be a bug in my application.
Then I restored my latest backup file by using the web interface of H2 by
clicking on Tools - Restore - Start.
And the result was the same: Trace-output of error messages in
trace.db-file even if I remove the trace file before starting to restore.
That's why I offered you to send you my backup file so you can try it with
the web interface, too.
I'm 100% sure, it has nothing to do with my application.
The only mistake I could have done was when I created my database the first
time and then accessed it without the trace = 0 parameters in my db url.
I guess H2 saved the trace parameters TRACE_LEVEL_SYSTEM_OUT = 1 and
TRACE_LEVEL_FILE = 1 (default) inside the database files so changing the
url parameters later won't affect anything.
Nevertheless, thank you for your reply again.
Best regards,
Michael
Am Mittwoch, 17. Juli 2013 18:35:14 UTC+2 schrieb Thomas Mueller:
Hi,
I definitely use the h2-1.3.172.dll file.
Yes, I understand.
I understand that my trace-db file contains old dates but I don't
understand why
Well, the most simple explanation is that those files are old files.
Probably your application restored them from somewhere (I think I wrote
that already). You need to figure out why this happens. This is your
application, and I can't really help you there. This is not a problem of H2.
I would like to send you my backup file, so you can try to restore the
file on your machine.
Sorry, I'm not quite sure how this would help. It seems you need to figure
out what's wrong with your application, why it restores old .trace.db
files. This is your application, and I'm not able to help you with that.
Regards,
Thomas
On Wed, Jul 17, 2013 at 12:50 PM, EDV-Services edvservi...@web.de wrote:
Hi Thomas,
thank you again for your reply.
I definitely use the h2-1.3.172.dll file. I've downloaded the jar file
some days ago and I used IKVM to transform the jar file into a dll file to
be able to use H2 in my .NET project.
I understand that my trace-db file contains old dates but I don't
understand why as I don't know anything about the internal H2 db processes.
All I can say is that I delete the trace-file before doing a restore and
then that output is created.
One explanation is that you restore old files over existing files
Thats true. In my application you have a database running and you can do
backups and restores whenever you want.
When I do a restore, the database already exists. I don't delete the
database before I restore an old backup file.
Is that the problem?
Also true is, that before I haven't used the same URL as now.
As I told you, I've added the two parameters
TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0; later.
Maybe H2 saves the url parameters into the database files on first
database connection so if you add these two parameters to your connection
URL later, then they won't affect the trace output anymore.
I would like to send you my backup file, so you can try to restore the
file on your machine.
Are you okay with that? If yes, then please tell me your email address.
Best regards
Michael
Am Dienstag, 16. Juli 2013 08:42:16 UTC+2 schrieb Thomas Mueller:
Hi,
I understand that it doesn't work for your case, but I'm afraid I can't
help you much because it works for me, and so far you didn't provide enough
information to reproduce the problem.
Just a few things I noticed:
* You wrote you use the latest version of H2, but in fact the latest
error message you got is from an older version (1.3.170). Reason: the build
number is included in the error code, which is [42001-170]. So the build is
170.
* The .trace.db file contains old dates. You wrote you reproduce the
problem now, but the error message starts with 07-09 12:51:43. So it
clearly was written at 2013-07-09 and not July 15th. The same with older
messages.
* You seem to backup and possibly restore files. One explanation is that
you restore old files over existing files.
* My guess is that you didn't always use the database URL you provided.
That's all I can say right now. I don't think this is a bug in H2.
Regards,
Thomas
On Monday, July 15, 2013, EDV-Services wrote:
Sorry again, now I deleted all the data in all database tables except
for the table EINSTELLUNGEN
The full content of the trace.db-file is as follows:
07-09 12:51:43 jdbc[2]: exception
org.h2.jdbc.JdbcSQLException: Syntax Fehler in SQL Befehl
EINSTELLUNGEN; erwartet EXPLAIN, EXECUTE, {
Syntax error in SQL statement EINSTELLUNGEN; expected EXPLAIN,
EXECUTE, {; SQL statement:
EINSTELLUNGEN [42001-170]
It seems like the errors only occur when H2 tries to restore the
database data.
And what does that error message mean? EXPLAIN, EXECUTE?
Am Sonntag, 14. Juli 2013 16:14:31 UTC+2 schrieb EDV-Services:
Hi guys,
I've developed a software project and I've
Re: [h2] mydb.trace.db despite TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0
If you look inside the zip file of your backup are there trace files in there? On 18/07/2013 4:14 PM, EDV-Services wrote: Hi Thomas, I thought the same, I thought it could be a bug in my application. Then I restored my latest backup file by using the web interface of H2 by clicking on Tools - Restore - Start. And the result was the same: Trace-output of error messages in trace.db-file even if I remove the trace file before starting to restore. That's why I offered you to send you my backup file so you can try it with the web interface, too. I'm 100% sure, it has nothing to do with my application. The only mistake I could have done was when I created my database the first time and then accessed it without the trace = 0 parameters in my db url. I guess H2 saved the trace parameters |TRACE_LEVEL_SYSTEM_OUT| = 1 and |TRACE_LEVEL_FILE| = 1 (default) inside the database files so changing the url parameters later won't affect anything. Nevertheless, thank you for your reply again. Best regards, Michael Am Mittwoch, 17. Juli 2013 18:35:14 UTC+2 schrieb Thomas Mueller: Hi, I definitely use the h2-1.3.172.dll file. Yes, I understand. I understand that my trace-db file contains old dates but I don't understand why Well, the most simple explanation is that those files are old files. Probably your application restored them from somewhere (I think I wrote that already). You need to figure out why this happens. This is your application, and I can't really help you there. This is not a problem of H2. I would like to send you my backup file, so you can try to restore the file on your machine. Sorry, I'm not quite sure how this would help. It seems you need to figure out what's wrong with your application, why it restores old .trace.db files. This is your application, and I'm not able to help you with that. Regards, Thomas On Wed, Jul 17, 2013 at 12:50 PM, EDV-Services edvservi...@web.de wrote: Hi Thomas, thank you again for your reply. I definitely use the h2-1.3.172.dll file. I've downloaded the jar file some days ago and I used IKVM to transform the jar file into a dll file to be able to use H2 in my .NET project. I understand that my trace-db file contains old dates but I don't understand why as I don't know anything about the internal H2 db processes. All I can say is that I delete the trace-file before doing a restore and then that output is created. One explanation is that you restore old files over existing files Thats true. In my application you have a database running and you can do backups and restores whenever you want. When I do a restore, the database already exists. I don't delete the database before I restore an old backup file. Is that the problem? Also true is, that before I haven't used the same URL as now. As I told you, I've added the two parameters TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0; later. Maybe H2 saves the url parameters into the database files on first database connection so if you add these two parameters to your connection URL later, then they won't affect the trace output anymore. I would like to send you my backup file, so you can try to restore the file on your machine. Are you okay with that? If yes, then please tell me your email address. Best regards Michael Am Dienstag, 16. Juli 2013 08:42:16 UTC+2 schrieb Thomas Mueller: Hi, I understand that it doesn't work for your case, but I'm afraid I can't help you much because it works for me, and so far you didn't provide enough information to reproduce the problem. Just a few things I noticed: * You wrote you use the latest version of H2, but in fact the latest error message you got is from an older version (1.3.170). Reason: the build number is included in the error code, which is [42001-170]. So the build is 170. * The .trace.db file contains old dates. You wrote you reproduce the problem now, but the error message starts with 07-09 12:51:43. So it clearly was written at 2013-07-09 and not July 15th. The same with older messages. * You seem to backup and possibly restore files. One explanation is that you restore old files over existing files. * My guess is that you didn't always use the database URL you provided. That's all I can say right now. I don't think this is a bug in H2. Regards, Thomas On Monday, July 15, 2013, EDV-Services wrote: Sorry again, now I deleted
Re: [h2] mydb.trace.db despite TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0
Hi Thomas,
thank you again for your reply.
I definitely use the h2-1.3.172.dll file. I've downloaded the jar file
some days ago and I used IKVM to transform the jar file into a dll file to
be able to use H2 in my .NET project.
I understand that my trace-db file contains old dates but I don't
understand why as I don't know anything about the internal H2 db processes.
All I can say is that I delete the trace-file before doing a restore and
then that output is created.
One explanation is that you restore old files over existing files
Thats true. In my application you have a database running and you can do
backups and restores whenever you want.
When I do a restore, the database already exists. I don't delete the
database before I restore an old backup file.
Is that the problem?
Also true is, that before I haven't used the same URL as now.
As I told you, I've added the two parameters
TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0; later.
Maybe H2 saves the url parameters into the database files on first database
connection so if you add these two parameters to your connection URL later,
then they won't affect the trace output anymore.
I would like to send you my backup file, so you can try to restore the file
on your machine.
Are you okay with that? If yes, then please tell me your email address.
Best regards
Michael
Am Dienstag, 16. Juli 2013 08:42:16 UTC+2 schrieb Thomas Mueller:
Hi,
I understand that it doesn't work for your case, but I'm afraid I can't
help you much because it works for me, and so far you didn't provide enough
information to reproduce the problem.
Just a few things I noticed:
* You wrote you use the latest version of H2, but in fact the latest error
message you got is from an older version (1.3.170). Reason: the build
number is included in the error code, which is [42001-170]. So the build is
170.
* The .trace.db file contains old dates. You wrote you reproduce the
problem now, but the error message starts with 07-09 12:51:43. So it
clearly was written at 2013-07-09 and not July 15th. The same with older
messages.
* You seem to backup and possibly restore files. One explanation is that
you restore old files over existing files.
* My guess is that you didn't always use the database URL you provided.
That's all I can say right now. I don't think this is a bug in H2.
Regards,
Thomas
On Monday, July 15, 2013, EDV-Services wrote:
Sorry again, now I deleted all the data in all database tables except for
the table EINSTELLUNGEN
The full content of the trace.db-file is as follows:
07-09 12:51:43 jdbc[2]: exception
org.h2.jdbc.JdbcSQLException: Syntax Fehler in SQL Befehl
EINSTELLUNGEN; erwartet EXPLAIN, EXECUTE, {
Syntax error in SQL statement EINSTELLUNGEN; expected EXPLAIN,
EXECUTE, {; SQL statement:
EINSTELLUNGEN [42001-170]
It seems like the errors only occur when H2 tries to restore the database
data.
And what does that error message mean? EXPLAIN, EXECUTE?
Am Sonntag, 14. Juli 2013 16:14:31 UTC+2 schrieb EDV-Services:
Hi guys,
I've developed a software project and I've noticed that there is a file
in my user folder called mydb.trace.db.
When I open this file, I see a lot of sql statements exposing some
tables of my database.
I use the following connection string: jdbc:h2:~/mydb;TRACE_LEVEL_**
FILE=0;TRACE_LEVEL_SYSTEM_OUT=**0;CIPHER=AES
I thought these two TRACE parameters in my connection string must be
enough to avoid creating the mydb.trace.db file.
That's the trace output from mydb.trace.db:
02-25 11:47:33 jdbc[2]: exception
org.h2.jdbc.JdbcSQLException: Syntax Fehler in SQL Befehl INSERT INTO
CUSTOMER(xxx, yyy) VALUES('xxx', 'yyy');
...
I'm using the latest version h2-1.3.172.dll (dll file created from jar
file with ikvm).
The trace entries occur when i use the following vb.net code:
Dim restore As New Restore()
restore.execute(backup.bck, ~, mydb)
I don't want hackers to be able to see my database content so imho it's
a serious security flaw.
Can anyone give me a hint what I'm doing wrong?
Best regards
Michael
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Re: [h2] mydb.trace.db despite TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0
Hi,
I understand that it doesn't work for your case, but I'm afraid I can't
help you much because it works for me, and so far you didn't provide enough
information to reproduce the problem.
Just a few things I noticed:
* You wrote you use the latest version of H2, but in fact the latest error
message you got is from an older version (1.3.170). Reason: the build
number is included in the error code, which is [42001-170]. So the build is
170.
* The .trace.db file contains old dates. You wrote you reproduce the
problem now, but the error message starts with 07-09 12:51:43. So it
clearly was written at 2013-07-09 and not July 15th. The same with older
messages.
* You seem to backup and possibly restore files. One explanation is that
you restore old files over existing files.
* My guess is that you didn't always use the database URL you provided.
That's all I can say right now. I don't think this is a bug in H2.
Regards,
Thomas
On Monday, July 15, 2013, EDV-Services wrote:
Sorry again, now I deleted all the data in all database tables except for
the table EINSTELLUNGEN
The full content of the trace.db-file is as follows:
07-09 12:51:43 jdbc[2]: exception
org.h2.jdbc.JdbcSQLException: Syntax Fehler in SQL Befehl EINSTELLUNGEN;
erwartet EXPLAIN, EXECUTE, {
Syntax error in SQL statement EINSTELLUNGEN; expected EXPLAIN, EXECUTE,
{; SQL statement:
EINSTELLUNGEN [42001-170]
It seems like the errors only occur when H2 tries to restore the database
data.
And what does that error message mean? EXPLAIN, EXECUTE?
Am Sonntag, 14. Juli 2013 16:14:31 UTC+2 schrieb EDV-Services:
Hi guys,
I've developed a software project and I've noticed that there is a file
in my user folder called mydb.trace.db.
When I open this file, I see a lot of sql statements exposing some tables
of my database.
I use the following connection string: jdbc:h2:~/mydb;TRACE_LEVEL_**
FILE=0;TRACE_LEVEL_SYSTEM_OUT=**0;CIPHER=AES
I thought these two TRACE parameters in my connection string must be
enough to avoid creating the mydb.trace.db file.
That's the trace output from mydb.trace.db:
02-25 11:47:33 jdbc[2]: exception
org.h2.jdbc.JdbcSQLException: Syntax Fehler in SQL Befehl INSERT INTO
CUSTOMER(xxx, yyy) VALUES('xxx', 'yyy');
...
I'm using the latest version h2-1.3.172.dll (dll file created from jar
file with ikvm).
The trace entries occur when i use the following vb.net code:
Dim restore As New Restore()
restore.execute(backup.bck, ~, mydb)
I don't want hackers to be able to see my database content so imho it's a
serious security flaw.
Can anyone give me a hint what I'm doing wrong?
Best regards
Michael
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Re: [h2] mydb.trace.db despite TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0
Hi,
Sorry I can't reproduce the problem. The *.trace.db file is not created in
my case, with the latest version of H2.
Please note the message you posted starts with 02-25 11:47:33, this means
the message is from February 25th. Are you sure you disabled the setting
back then? What version of H2 did you use back then?
Regards,
Thomas
On Sun, Jul 14, 2013 at 4:14 PM, EDV-Services edvservi...@web.de wrote:
Hi guys,
I've developed a software project and I've noticed that there is a file in
my user folder called mydb.trace.db.
When I open this file, I see a lot of sql statements exposing some tables
of my database.
I use the following connection string:
jdbc:h2:~/mydb;TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0;CIPHER=AES
I thought these two TRACE parameters in my connection string must be
enough to avoid creating the mydb.trace.db file.
That's the trace output from mydb.trace.db:
02-25 11:47:33 jdbc[2]: exception
org.h2.jdbc.JdbcSQLException: Syntax Fehler in SQL Befehl INSERT INTO
CUSTOMER(xxx, yyy) VALUES('xxx', 'yyy');
...
I'm using the latest version h2-1.3.172.dll (dll file created from jar
file with ikvm).
The trace entries occur when i use the following vb.net code:
Dim restore As New Restore()
restore.execute(backup.bck, ~, mydb)
I don't want hackers to be able to see my database content so imho it's a
serious security flaw.
Can anyone give me a hint what I'm doing wrong?
Best regards
Michael
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Re: [h2] mydb.trace.db despite TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0
Hi Thomas,
thank you for your reply.
I've opened the trace.db-file in Notepad++ and I deleted every single line
in that file.
The file was empty. Then I tried to restore a backup file and Notepad++
reloaded the file with the input I've posted above.
I also tried to delete the file, but H2 created it again.
Regarding the date I'd like to tell you that my trace.db file contains a
lot of such lines with different dates:
02-25 11:47:33 jdbc[2]: exception ...
02-25 11:50:27 jdbc[2]: exception ...
02-25 11:51:02 jdbc[2]: exception ...
02-25 11:51:33 jdbc[2]: exception ...
02-25 11:52:34 jdbc[2]: exception ...
02-25 11:59:05 jdbc[2]: exception ...
02-25 20:47:35 jdbc[2]: exception ...
02-25 21:06:55 jdbc[2]: exception ...
02-25 21:07:06 jdbc[2]: exception ...
02-25 21:07:15 jdbc[2]: exception ...
02-25 21:08:24 jdbc[2]: exception ...
02-25 21:11:05 jdbc[2]: exception ...
02-25 21:11:18 jdbc[2]: exception ...
02-25 21:16:21 jdbc[2]: exception ...
02-25 21:17:06 jdbc[2]: exception ...
02-25 21:51:59 jdbc[2]: exception ...
02-25 21:52:10 jdbc[2]: exception ...
02-25 21:52:13 jdbc[2]: exception ...
02-27 13:43:27 jdbc[2]: exception ...
03-06 19:08:42 jdbc[2]: exception ...
03-07 16:39:26 jdbc[2]: exception ...
03-07 16:39:33 jdbc[2]: exception ...
03-08 15:24:57 jdbc[2]: exception ...
03-08 15:24:57 jdbc[2]: exception ...
03-08 16:46:04 jdbc[2]: exception ...
03-07 19:39:57 jdbc[2]: exception ...
Before I haven't used this code
TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0.
I just started to use it 4 weeks ago. And I used h2-1.3.160 until last
week.
Last Sunday I switched to h2-1.3.172 because I thought it could solve my
problem but it didn't.
What I've noticed is that the backup file is restored with a lot of errors.
Sometimes the column number of a table doesn't fit which is very curious
because the restore file contains the db structure and also the db data.
So why are there errors when I make a backup and after 5 seconds I try to
restore the same file?
Thank you again for your help.
Best regards,
Michael
Am Montag, 15. Juli 2013 19:26:35 UTC+2 schrieb Thomas Mueller:
Hi,
Sorry I can't reproduce the problem. The *.trace.db file is not created in
my case, with the latest version of H2.
Please note the message you posted starts with 02-25 11:47:33, this
means the message is from February 25th. Are you sure you disabled the
setting back then? What version of H2 did you use back then?
Regards,
Thomas
On Sun, Jul 14, 2013 at 4:14 PM, EDV-Services edvse...@web.dejavascript:
wrote:
Hi guys,
I've developed a software project and I've noticed that there is a file
in my user folder called mydb.trace.db.
When I open this file, I see a lot of sql statements exposing some tables
of my database.
I use the following connection string:
jdbc:h2:~/mydb;TRACE_LEVEL_FILE=0;TRACE_LEVEL_SYSTEM_OUT=0;CIPHER=AES
I thought these two TRACE parameters in my connection string must be
enough to avoid creating the mydb.trace.db file.
That's the trace output from mydb.trace.db:
02-25 11:47:33 jdbc[2]: exception
org.h2.jdbc.JdbcSQLException: Syntax Fehler in SQL Befehl INSERT INTO
CUSTOMER(xxx, yyy) VALUES('xxx', 'yyy');
...
I'm using the latest version h2-1.3.172.dll (dll file created from jar
file with ikvm).
The trace entries occur when i use the following vb.net code:
Dim restore As New Restore()
restore.execute(backup.bck, ~, mydb)
I don't want hackers to be able to see my database content so imho it's a
serious security flaw.
Can anyone give me a hint what I'm doing wrong?
Best regards
Michael
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