Hi Vadim,
On 08.01.14 19:50, Vadim Bobrov wrote:
Hi,
I have this leveldb journal problem when playing with the new
persistence module. With this simple setup:
class ProcActor extends Processor {
override def receive = {
case Persistent(_, sequenceNr) =>
deleteMessages(sequenceNr)
you must use deleteMessage(sequenceNr, permanent = true) to permanently
delete messages from the journal, otherwise only a deletion marker is
added to the journal, increasing further disk usage. Please note that
LevelDB doesn't immediately physically delete the message but only
reduce disk space when running compactions
<http://leveldb.googlecode.com/svn/trunk/doc/impl.html>.
If you want to delete a single message you should use deleteMessage
instead of deleteMessages. The deleteMessages method deletes all
messages up to the specified sequenceNr which is usually a more
expensive operation compared to what deleteMessage is doing.
}
}
object Main extends App {
implicit lazy val system = ActorSystem("evsourd",
ConfigFactory.load().getConfig("evsourd"))
val top = system.actorOf(Props[ProcActor], name = "top")
for(i <- 1 to 1000000)
top ! Persistent(i)
}
why does my leveldb journal directory (default, native leveldb) grows
to over 1 Gb within minutes? Aren't all messages are deleted by
ProcActor? Also - is there any way to look into what's in the journal?
Thanks
Vadim
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