memcached - Couchbase temporary failure -



memcached - Couchbase temporary failure -

i'm using couchbase 2.0.1 , using:

operationfuture<boolean> set = client.set(keysesioncanal, 0, sesioncanal, couchdbclient.transcoder_sesion_canal); logger.info( set.getstatus().getmessage() );

sometimes error message: temporary failure

i'm pretty new using couchbase , i'm not sure happening. in couchbase logs can see lot of messages as: "total memory utilize reached low water mark, stop warmup"

could cause?

another weird log me is: " sending tap_opaque command "opaque_enable_auto_nack" , vbucket 0" " tap (producer) eq_tapq:replication_ns_1@x.x.x.x - suspend 5.00 secs"

what meaning of this? can find documentation about?

this happening hitting limits of amount of memory available caching. cluster effort free memory (by ejecting not-recently-used items ram) if writing info fast cluster free memory before reaches high watermark, may see tempfail errors - indicate client should off , retry. covered server-side in ejection, eviction , working-set managerment.

exactly how handle depends on specific sdk using, general info available under handling temporary out-of-memory errors in developer guide.

note low/high watermark algorithm improved in subsequent releases may have improve experience latest release (2.0.1 quite old now).

memcached couchbase

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