Hello Andre,
> We have a serious problem with sapdb version 7.4.3.31 (on SuSE-Linux)
> - We have clients with long running transactions, all with 
> isolationlevel 1.
> - Many of them do many SELECTS without commit.
> - These SELECTS sometimes keep Locks, which block other 
>   clients when they
>   trying to write on those tables.

It would be useful going a little into detail here, e.g. describing what kind are your 
SELECTs,
what are the commands that are blocked and hang, and what is the content of 
LOCKSTATISTICS at 
that time.

> - I was told, that these behaviour was a bug of version 7.3, 
>   and that I should upgrade to 7.4.

Those problems made your issues probably only much more worse, and showed up first. 

> - It seems that the problem still exists.

I think the problem has the same symptoms, but is not necessarily the same ... so 
please
send a little more information.

Regards
Alexander Schr�der
SAP DB, SAP Labs Berlin


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