Hi,
On 04/05/17 12:02, Ian Boston wrote:
What is the expected behaviour when a Oak MongoMK experiences a MongoDB
primary failure.
I am looking at an instance that appears to try and retry reads repeatedly
from the MongoDB primary and after 60s or more reports the Oak Discovery
lease has been lost, resulting in many minutes of retries there eventually
shutting down the repository.
I don't currently have the MongoDB logs to share. Just wondering what to
expect at this stage ?
Oak will stop the oak-core bundle if a MongoDB primary is unavailable
for more than 110 seconds. The 110 seconds are based on the 120 seconds
lease timeout and a lease update interval of 10 seconds.
When this happens, all reads and writes to the repository will fail.
Though, in an OSGi environment services depending on oak-core should
stop as well. You will need to restart the system or affected bundles
once the primary is available again. See also discussion in OAK-3397 and
OAK-3250.
Regards
Marcel
