I just pushed an updated unit test to GitHub.
Sorry, I can see anything obviously wrong with your code.
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Test attached
On Wednesday, December 21, 2016 at 8:41:44 PM UTC+5, Thomas Mueller Graf
wrote:
>
> Hi,
>
> I guess that bug would be on my plate... I recently made changes there
> (trying to improve concurrency). I'm sorry about that. Having a test case
> would be great!
>
> Regards,
> Thomas
>
org.h2.jdbc.JdbcSQLException: General error:
"java.nio.BufferUnderflowException"; SQL statement:
UPDATE account set balance = ? where id = ? [5-193]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
at org.h2.message.DbException.get(DbException.java:168)
at org.h2.message
The bug is reproduced only in multi-thread application
On Wednesday, December 21, 2016 at 8:41:44 PM UTC+5, Thomas Mueller Graf
wrote:
>
> Hi,
>
> I guess that bug would be on my plate... I recently made changes there
> (trying to improve concurrency). I'm sorry about that. Having a test case
>
Here it is a very minimal project where the issue can be verified.
https://github.com/UlTriX/h2problem
I appreciate any help. Thank you
Pedro
On Wednesday, 21 December 2016 14:49:02 UTC, Noel Grandin wrote:
>
> I updated our unit tests to test this case, and it seems to be working
> fine.
>
Hi Noel,
thank you very much for the quick response I am working in isolating the
code and the problem.
>From what I gather so far I strongly believe the problem lies in H2 when
working with the TableFilter
The Cursor I implemented (that is returned by public Cursor find(Session
session, Sear
Hi,
I guess that bug would be on my plate... I recently made changes there
(trying to improve concurrency). I'm sorry about that. Having a test case
would be great!
Regards,
Thomas
On Wed, Dec 21, 2016 at 3:56 PM, Noel Grandin wrote:
> Can we get a full stack trace for that failure.
>
> --
Can we get a full stack trace for that failure.
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Without split it also failed (url jdbc:h2:nioMemLZF:db):
Caused by: java.nio.BufferUnderflowException
at java.nio.Buffer.nextGetIndex(Buffer.java:500)
On Wednesday, December 21, 2016 at 7:50:31 PM UTC+5, Noel Grandin wrote:
>
> then let's fix that problem, but I'm not really keen on trying to fi
then let's fix that problem, but I'm not really keen on trying to fix a
combination crash like that.
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I have very big in-memory database ~ 1TB. Without split H2 crashes
On Wednesday, December 21, 2016 at 7:43:13 PM UTC+5, Noel Grandin wrote:
>
> I'm sorry, but that's just a silly combination to be using.
>
> You should only using be "split:" for FAT filesystems, and you should
> certainly not
I updated our unit tests to test this case, and it seems to be working fine.
If you are convinced the problem lies in H2, try creating a small standalone
test case, and then we could help you debug it.
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I'm sorry, but that's just a silly combination to be using.
You should only using be "split:" for FAT filesystems, and you should certainly not be using it in combination with
"nioMemLZF:"
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After applying this patch I'm getting following error with nioMemLZF
(url= jdbc:h2:split:30:nioMemLZF:db):
org.h2.jdbc.JdbcSQLException: General error:
"java.nio.BufferUnderflowException"; SQL statement:
UPDATE account set balance = ? where id = ? [5-193]
at org.h2.message.DbException.getJdb
Hello,
I am using H2 Version 1.4.193 and I am creating a Pluggable / User-Defined
Table with ENGINE "..."
Just to sum up it is a Table that gathers data from a REST Endpoint.
I have implemented the Table, Index and Cursor everything is working in
order
and simple queries like SELECT * FROM Ta
yes, because you are not holding the transaction open while reading the LOB, so the LOB is disappearing while you are
reading it.
i.e.
connection.setAutoCommit(false);
read the LOB completely here..
connection.commit();
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Hi Noel,
The update thread and the read thread each have separate
transactions/connections(ThreadLocal) to the database.
So while the read thread is open, the update thread comes and
updates/writes to the row. (currently the table has single row) and one of
the column in CLOB.
Our observation
Hi all, sorry for reopen such an old thread... but this is also happening
to me working with last release 1.4.193.
The MVStore background thread seems to eat a lot of cpu with no operation
being performed. Setting the WRITE_DELAY as a connection parameter does the
trick.
Thanks for your help.
Hi all, sorry for reopen such an old thread... but this is also happening
to me working with last release 1.4.193.
The MVStore background thread seems to eat a lot of cpu with no operation
being performed. Setting the WRITE_DELAY as a connection parameter does the
trick.
Thanks for your help.
Thank you for quick help!
On Wednesday, December 21, 2016 at 3:55:32 PM UTC+5, Noel Grandin wrote:
>
> It appears I was wrong about this, we already implement reading/writing
> without synchronisation for all of our other
> file implementations, I just missed that you are using the "split:" stuf
It appears I was wrong about this, we already implement reading/writing without synchronisation for all of our other
file implementations, I just missed that you are using the "split:" stuff.
I have pushed a fix for this.
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Leon,
Although not marked stable, 1.4 with the page store (MV_STORE=false in JDBC
URL) works better than 1.3.176 in many ways, and as good as 1.3.176 in all
other ways.
I'm willing to state this because my product (Poker Copilot) has been using
H2 since 2009 with thousands of users. As of Janu
On 2016/12/21 10:26 AM, SkiAddict wrote:
How do we migrate to the MV_STORE format?
Dump and restore.
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On Wednesday, 21 December 2016 20:15:40 UTC+13, Noel Grandin wrote:
>
> MV_STORE is a completely separate storage engine from the old PageStore.
>
> The old PageStore engine generates files with a .h2.db extension, the new
> MV_STORE engine generates files with a .mv.db extension.
>
> So it's not
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