Couchbase Q&A

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krjensen's picture
Asked 2 weeks 11 hours ago

Windows VS linux - performance


We are looking at implement a big high performance Couchbase cluster, on a huge platform.
The platform is a .net web solution, but when we implement a new technology, we always go for the best performing platform(like Linux for varnish).

Question: Is Couchbase performing...

rodrigolunus's picture
Asked 2 weeks 13 hours ago

Couchbase server concurrency control

Hi, i have a question. I was researching about couchbase features, i got confused about the concurrency control. Couchbase use mvcc or locks to concurrency control?


siwy202's picture
Asked 2 weeks 13 hours ago

Uncaught error in HTTP request: {throw,{unauthorized,<<"password required">>}}

Setup: 2.0.1 community edition (build-170), CentOS 6
Buckets: 6 buckets, all configured with SASL password
The applications are using .NET Couchbase DLL v1.2.6.0

Hi -

We are running 2.0.1 Community Edition (Build-170) and we are seeing a good amount of the following...

jrorke's picture
Asked 2 weeks 1 day ago

N1QL from Java? Best way to search from a Java client

1. Is the N1QL functionality exposed via any of the APIs (Java, in particular)? Or is it a command line tool only?

2. What is the best approach for building in ad hoc querying from a Java client? Is it building views and then executing queries against the views.

3. If the view...

buger's picture
Asked 2 weeks 1 day ago
Latest activity 2 weeks 10 hours ago

Couchbase 2.5.1 crash report

Here is log and erlang crash report:

Crash happened during i have collection re-indexing (in the middle of the process). Collection have about 10M records with 6 simple views.

khwong9981's picture
Asked 2 weeks 1 day ago
Latest activity 1 week 5 days ago

Intermittent "Failed to read from the socket"

I am using Couchbase 2.2.0 as a custom provider for ASP.Net Session State. Intermittently there are some error happen in server. Some users experienced lost of session due to unable to retrieve session from Couchbase. Below are the error log captured. Hopefully someone can point out how to solve...

xuxj's picture
Asked 2 weeks 1 day ago

Using Java to Perform a Multi-Key Get on a Couchbase View


how to query find by name and can pass parameter,
such as
public List findByName(String name){


my english is very pool,i...

michayu's picture
Asked 2 weeks 2 days ago

Restoring filecopy backup for single node

Based on the docs for filecopy restore:

"Each node must have the IP address or hostname it was configured with when the cluster was backed up."

michayu's picture
Asked 2 weeks 2 days ago
Latest activity 8 hours 18 min ago

How to properly restore Couchbase backup to another server?

I have Couchbase single-node-cluster A and B. Both have the same configuration. Except "A" has NO buckets, whereas "B" has 3 buckets with documents in each.

I use cbbackup to back up all buckets in "B".

How do I properly restore this backup to "A"? From the docs on cbrestore,...

zampettim's picture
Asked 2 weeks 2 days ago

memcached server won't start after install on RHEL6

After installing Couchbase Server 2.2 via the RHEL6 64-bit RPMs, the memcached server keeps crashing and cycling. The installation via RPM went fine, without any issues. The Setup via the Web Console went fine, without errors.

The logs are cryptic enough that it is very hard to understand what may be causing the problem.