Thanks. I just read the camel-leveldb page. Do I understand it correctly that the " sync" option must be true to avoid message loss on power outage or similar circumstances where the system goes down unexpectedly?
If yes: is there already an expected release date for Camel 2.12? Cheers Stefan On Fri, Jul 19, 2013 at 9:29 AM, Claus Ibsen <claus.ib...@gmail.com> wrote: > Hi > > Yeah leveldb has more tools. Just google. > > The camel-leveldb docs is here > http://camel.apache.org/leveldb > > > > On Thu, Jul 18, 2013 at 9:48 AM, Stefan Burkard <sburk...@gmail.com> > wrote: > > Hi Claus > > > > I'm using camel-hawtdb 2.9.6 and (according to the classpath) hawtdb 1.6. > > The fact that hawtdb has no recovery tools but I need to build them by > > myself is bad news to me. After all I use the great Camel framework to > > avoid building general-purpose functionality like this by myself. > > > > How about LevelDB? Has it better tool support? And can I already use > > leveldb with a Camel 2.x release? I stumbled over LevelDB while searching > > for recovery options for HawtDB, but I didn't find an example how to use > it > > with the aggregator. Is there a unittest or similar I can look at? > > > > Thanks > > Stefan > > > > > > > > > > ************************************************************************ > > Von "aabändle" bis "zwüsche" - das umfangreichste Berndeutsch-Wörterbuch > > im Internet: http://www.berndeutsch.ch > > Ausserdem: Das Blog zur Website unter http://blog.berndeutsch.ch > > Facebook-Seite unter https://www.facebook.com/berndeutsch > > Google+ Seite unter http://www.google.com/+berndeutsch > > > > > > On Wed, Jul 17, 2013 at 10:10 AM, Claus Ibsen <claus.ib...@gmail.com> > wrote: > > > >> What version of Camel and HawtDB are you using? > >> > >> To try to recover you would possible need to write some java code with > >> the HawtDB API to load the corrupted file(s) and peak inside. > >> > >> Down the road we recommend using camel-leveldb instead of > >> camel-hawtdb. This uses LevelDB as the store instead which is a much > >> more mature and widespread used store. > >> https://code.google.com/p/leveldb/ > >> > >> Apache ActiveMQ 5.9 offers leveldb out of the box, and is being > >> considered as the recommended/default store over its KahaDB store. > >> > >> The camel-leveldb has the same functionality as camel-hawtdb and is > >> very similar to setup. > >> > >> > >> On Tue, Jul 16, 2013 at 10:12 AM, Stefan Burkard <sburk...@gmail.com> > >> wrote: > >> > Hi Camel users > >> > > >> > I have a component with 2 persistent aggregators. One receives all > >> messages, > >> > one only a part of them. After a lot of test runs without problems I > had > >> > yesterday a serious problem with the aggregator persistence (hawtdb). > >> > > >> > I don't know yet what causes the problems, but however, problems can > >> occur. > >> > My problem is that I cannot recover the data from the hawtdb-files. > >> > > >> > Im my logs, I got first of all about 8 stacktraces like the attached > >> > "stacktrace1.txt". The number in the error message "The requested page > >> was > >> > not an extent: 35" is growing from stacktrace to stacktrace from 35 to > >> 1163. > >> > > >> > Then, I got some stacktraces like the attached "stacktrace2.txt". > >> > > >> > Finally I got A LOT of stacktraces like the attached > "stacktrace3.txt". > >> > > >> > After shutting down the component gracefully, I tried to restart it, > but > >> > this throws stacktraces like the attached "stacktrace-startup.txt". > >> > > >> > I can only start the component again if I rename the hawtdb-files so > they > >> > are ignored and new hawtdb-files are created. > >> > > >> > This leaves me with the question: how can I recover the corrupted > >> > hawtdb-files? I didn't found anything about this subject and if this > is > >> not > >> > possible, this would be a real show-stopper. > >> > > >> > Thanks for any help > >> > Stefan > >> > > >> > >> > >> > >> -- > >> Claus Ibsen > >> ----------------- > >> Red Hat, Inc. > >> Email: cib...@redhat.com > >> Twitter: davsclaus > >> Blog: http://davsclaus.com > >> Author of Camel in Action: http://www.manning.com/ibsen > >> > > > > -- > Claus Ibsen > ----------------- > Red Hat, Inc. > Email: cib...@redhat.com > Twitter: davsclaus > Blog: http://davsclaus.com > Author of Camel in Action: http://www.manning.com/ibsen >
