Couchbase Q&A

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canagey's picture
Asked 4 months 3 weeks ago
Latest activity 4 months 2 weeks ago

With N1QL queries being executed on the Couchbase server, what is the cost (on performance) of running such queries?

Appreciate if the cost can be defined for example with 100GB of data in one bucket if we run a query what the performance cost is??

bmhardy's picture
Asked 4 months 3 weeks ago

What caused a "panic"?

My app appears to be synchronizing on and on until finally a "panic" occurs and the sync completes. Do you have any idea what might be happening?

I see this in the couchbase sync gateway logs:

2014/05/02 19:24:56 http: panic serving 166.216.226.71:46063: runtime error: assignment...

levonio99's picture
Asked 4 months 3 weeks ago
Latest activity 4 months 2 weeks ago

Sorting asc vs. desc performance in views and N1QL

Hello,

We know that the views sort data in ascending order. Since N1QL uses views behind the scenes, we assume that ORDER BY in asc is performant. How does N1QL handle ORDER BY desc? Is there a difference in performance?

For example in SQL relational database when an index is...

ettman8's picture
Asked 4 months 3 weeks ago

Change Memcached Log Directory

Hi there,
We currently run Couchbase Version: 2.1.1 enterprise edition (build-764)
on Windows Server.

Is there any way to change the memcache log dir via config?
I have come across this previous discussion which discusses creating a symlink.
...

pappu_pandit's picture
Asked 4 months 3 weeks ago
Latest activity 4 months 3 weeks ago

Exception with "beer-sample" bucket

Hi There,

I am a newbie to couchbase and having a lo of problem with views. I can not run the simple view with couchbase "beer-sample"example.
I keep getting the exception:

"An unhandled exception of type 'Couchbase.Exceptions.ViewNotFoundException' occurred in Couchbase.dll...

matteo.giacomazzi's picture
Asked 4 months 3 weeks ago
Latest activity 4 months 3 weeks ago

Couchbase Python SDK in Ubuntu 14.04

Is there any known way to install Python SDK on Ubuntu 14.04?
Actually, trying to follow instructions for 12.04 - which is currently two years old - without any luck.

Thank you!

jade's picture
Asked 4 months 3 weeks ago
Latest activity 4 months 3 weeks ago

Why do I only get 100 documents when syncing shadow bucket through sync_gateway.

I set up a shadow bucket (shadow_bucket) to shadow an existing bucket (source_bucket). The files synced from the source_bucket to the shadow_bucket without any apparent problems. However, when I sync my channels from CBLite client I am only getting a total of 100 documents. Everything worked...

chancharles's picture
Asked 4 months 3 weeks ago
Latest activity 4 months 3 weeks ago

Partial Sync. Within A Channel

Hi, is it possible to synchronize a subset of documents within a channel?

For example, if I am creating a newsgroup like application and would like to synchronize the last 100 articles of each user-subscribed newsgroup, how would I do that?

Thanks

gustavo.leivapiedra's picture
Asked 4 months 3 weeks ago
Latest activity 4 months 3 weeks ago

How would a N1QL join statement behave in a sharded environment?

How would it be executed so that it's performant?

avyaktha's picture
Asked 4 months 3 weeks ago
Latest activity 4 months 3 weeks ago

For N1QL should we create an index for each search and filter predicate for n1ql to be performant?

How does this work with a sharded couchbase? which will be slow performing queries which ones will be fast

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