Below are the details about discussion held [0] so far on factors
which possibly hinder scaling JCR Observation.
It also touches upon area where usage pattern of applications running
on JCR (like Sling) effects performance
Concerns
-
Marcel - Basic concern raised is that listeners wit
Hi,
I implemented a very rough POC of the algorithm outlined below. See [1]
for the implementation itself. On move a node is annotated with its
source path in NodeBuilder.moveTo(). Later moves can be extracted
through the standalone MoveDetector class. See MoveDetectorTest for
details. MoveD
Build Update for apache/jackrabbit-oak
-
Build: #2420
Status: Broken
Duration: 746 seconds
Commit: 9c28da397b7a07ea21f5a039a894313638933cf6 (trunk)
Author: Thomas Mueller
Message: OAK-1083 Query with descendent node and access control fails to return
result
g
Hi,
On Mon, Oct 21, 2013 at 6:38 AM, Chetan Mehrotra
wrote:
> Marcel - Basic concern raised is that listeners without any filter
> would cause lots of reads on the repository. these kind of listeners
> would pull in modifications of all sessions performing distributed
> writes. In our view this w
On Mon, Oct 21, 2013 at 3:17 PM, Jukka Zitting wrote:
> ...Instead of an repository problem (like diffing, event creation, etc.),
> this analysis tells me that the bottleneck here is the application
> that tries to listen to so many events...
FWIW, by default Sling does have a listener that catch
Hi,
On Mon, Oct 21, 2013 at 9:47 AM, Bertrand Delacretaz
wrote:
> On Mon, Oct 21, 2013 at 3:17 PM, Jukka Zitting
> wrote:
>> ...Instead of an repository problem (like diffing, event creation, etc.),
>> this analysis tells me that the bottleneck here is the application
>> that tries to listen to
Out of memory in the ObservationTestŠ
On 10/21/13 2:42 PM, "Travis CI" wrote:
>Build Update for apache/jackrabbit-oak
>-
>
>Build: #2420
>Status: Broken
>
>Duration: 746 seconds
>Commit: 9c28da397b7a07ea21f5a039a894313638933cf6 (trunk)
>Author: Thomas Muelle
Hi,
> extra pass
On how to avoid this extra pass. Not strictly backward compatible, but I
wonder how much it would break: what if observation would deliver two
events for moved nodes: the "node moved" event (added at the target), plus
the "node deleted" event (deleted at the source)? The one use
Build Update for apache/jackrabbit-oak
-
Build: #2421
Status: Fixed
Duration: 1751 seconds
Commit: 1ead64469a8942d11d56eb2c0abb9cfc4aa60508 (trunk)
Author: Thomas Mueller
Message: OAK-825 Unnecessary performance overhead (too many child nodes are
traversed)
g
Build Update for apache/jackrabbit-oak
-
Build: #2422
Status: Fixed
Duration: 1922 seconds
Commit: ad80c977f15843097b53148952a8c6206a6fd47f (trunk)
Author: Thomas Mueller
Message: OAK-641: Improved benchmark tooling - save before running the test,
use a non-or
Build Update for apache/jackrabbit-oak
-
Build: #2423
Status: Fixed
Duration: 2088 seconds
Commit: 3497dad7ffe8b11ae8693ff9707dad91453af53b (trunk)
Author: Thomas Mueller
Message: OAK-641: Improved benchmark tooling - use different node names
git-svn-id: https
Build Update for apache/jackrabbit-oak
-
Build: #2424
Status: Broken
Duration: 1091 seconds
Commit: 7bca7b45a1b7e6521b9cc3a4c422cf5848f2833b (trunk)
Author: Angela Schreiber
Message: OAK-527: permissions (minor improvement)
git-svn-id: https://svn.apache.org/r
i will look at it
On 10/21/13 5:26 PM, "Travis CI" wrote:
>Build Update for apache/jackrabbit-oak
>-
>
>Build: #2424
>Status: Broken
>
>Duration: 1091 seconds
>Commit: 7bca7b45a1b7e6521b9cc3a4c422cf5848f2833b (trunk)
>Author: Angela Schreiber
>Message: OAK-527
This Sling listener is providing higher level application support as it
creates resource events out of jcr observation events. A lot of code in
Sling now relies on this functionality and even more higher level code
based on Sling does so. Usually application listeners register for "/" and
then filt
hmm... the build works for me including the integrationtests.
regards
angela
On 10/21/13 5:52 PM, "Angela Schreiber" wrote:
>i will look at it
>
>On 10/21/13 5:26 PM, "Travis CI" wrote:
>
>>Build Update for apache/jackrabbit-oak
>>-
>>
>>Build: #2424
>>Statu
Hi,
On Mon, Oct 21, 2013 at 12:03 PM, Carsten Ziegeler wrote:
> This Sling listener is providing higher level application support as it
> creates resource events out of jcr observation events. A lot of code in
> Sling now relies on this functionality and even more higher level code
> based on Sli
On 21.10.13 7:18 , Tobias Bocanegra wrote:
On Mon, Oct 21, 2013 at 7:31 AM, Thomas Mueller wrote:
>Hi,
>
>>extra pass
>
>On how to avoid this extra pass. Not strictly backward compatible, but I
>wonder how much it would break: what if observation would deliver two
>events for moved nodes: t
hi
just one more comment regarding caches from a security perspective
>> However, there are many use cases where a local cache is used on
>> each instance which would make such an approach useless.
>
>Oak has a variety of solutions that could be used to make such code
>more scalable (ordered by i
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