Cannot handle multiple threads

Question

Cannot handle multiple threads

Hardcore-fs opened this issue 12 years ago · 3 comments

Hardcore-fs commented 12 years ago

Even something like adding/removing multiple records cannot be threaded.

Answer 1 · 2012-06-12T06:53:15.000Z

Could you be more specific?
JDBM3 should be thread safe.

Jan

On 12/06/12 01:37, Hardcore wrote:

Even something like adding/removing multiple records cannot be threaded.

Reply to this email directly or view it on GitHub:
#81

Answer 2 · 2012-06-21T10:56:16.000Z

I was using it to store url's from a high-speed crawler, fed by 50 threads
I kept getting concurrency warnings from the JVM.
I'm now using "ehcache" and the problems have dissapeared

Answer 3 · 2012-06-21T19:06:29.000Z

It sounds like you got ConcurrentModificationException, which is by design. JDBM3 has fail-fast iterators. Something which should improve in JDBM4