Re: Is there a size limit on setBinaryStream?
| От | Oliver Jowett |
|---|---|
| Тема | Re: Is there a size limit on setBinaryStream? |
| Дата | |
| Msg-id | 41A9C70C.9090503@opencloud.com обсуждение исходный текст |
| Ответ на | Is there a size limit on setBinaryStream? (jonathan.lister@vaisala.com) |
| Список | pgsql-jdbc |
jonathan.lister@vaisala.com wrote: > I am using pg74.215.jdbc3.jar [...] > My code is very similar to the example given in the documentation. It > seems to work OK for files up to around 780k, but when I try a larger > file (e.g. 5,498k it seems to just "hang" .. no exception, no error report). I suspect continuous GC is the cause, especially if you're running with a small heap. Try turning on -verbose:gc and see what you get. You will have more success with large binary objects if you use the development driver. The stable driver creates a lot of intermediate representations when you use setBytes() or setBinaryStream(). This means you need perhaps 10-20 times the stream's length in temporary heap space. The development driver streams the data directly, and should only need a small constant-sized intermediate buffer regardless of the stream length. -O
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