Couchbase Questions: Couchbase Server

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buger's picture
Asked 6 days 22 hours ago

RAM stats do not reconcile and evictions seems to be not working as expected

Here is screenshots of stats from one of our servers:

https://www.evernote.com/shard/s9/sh/b4df493a-10a9-44d6-9fb4-6fc6e633009...

From time to time one of the...

matthew.blyth's picture
Asked 1 week 17 hours ago
Latest activity 6 days 23 hours ago

Importing data from couchbase to hadoop using connector

Hi,
I am using the couchbase hadoop connector plugin to import data from couchbase to hadoop. Unfortunately, the values imported appear as byte array references instead of the actual byte array I was expecting. So, for example, the data output to hadoop appears as follows:

key,[B@...

igor_astds's picture
Asked 1 week 2 days ago
Latest activity 1 week 2 days ago

Issues with bench/ performance: cbc-pillowfight produces 1000x slower peaks at certain amount of writes

Hi all.
I'm having a very uneven distribution of 100usec and 1msec query time for following test command:
cbs-pillowfight -h localhost -b default -i 1 -I 10000
It's a two-node cluster running on i7-2600'...

yunjiha's picture
Asked 1 week 2 days ago

trouble import hadoop connector to work

I am trying to dump couchbase to hadoop using the sqoop plugin, and I am stuck with an error that says "Max block location exceeded for split".

hadoop 2.2.0
sqoop-1.4.4
jdk1.7.0_17
couchbase 2.2

Here is the full output:
14/04/14 14:52:59 INFO tool....

mlipovits's picture
Asked 1 week 3 days ago
Latest activity 1 week 1 day ago

Issues returning unique values

We are having some performance issues with our ongoing project because we get back lots of values from our views and cannot group them because we don't use any reduce function.
Here, we want all gpi - values which share the came cell_id back. problem here is that lots of document share the same gpi and the same cell_id. The group function is no option since we found no reduce to perform here. Since we get back so many duplicate values we have to put in a set in python so they are unique we lose a lot of performance due to iterating through all values couichbase returns.

An example doc and view are in the full description.
Does anyone have any idea how we could solve this problem?

sunku's picture
Asked 1 week 3 days ago
Latest activity 1 week 3 days ago

Creating a view

Hello,

I'm very new to Couchbase, and testing some queries on it these days.

In Couchbase, it seems that we should pre-define 'view' before I execute query. So, every sample article explains how to define views for each condition such as 'by_country", "by_lanuage", and "by_age"....

xiaoliang's picture
Asked 1 week 6 days ago
Latest activity 1 week 9 hours ago

How to keep datas after uninstallation

Fow example

I installed couchbase by rpm,version is 2.2.0

create Bucket and save datas to this bucket

after that,I want to uninstall it and install 2.2.1 or 2.1.0

after installation,will data be still there?

javadevmtl's picture
Asked 2 weeks 8 hours ago
Latest activity 1 week 2 days ago

How to count uniques with view?

So say I have the following documents

{"acct":"123456","name":"John Smith"}
{"acct":"123456","name":"John Smith"}
{"acct":"123457","name":"Jane Doe"}

function(doc) {
if(doc.acct)
emit (doc.acct, 1)
}

_count

This view will return 3...

polfer's picture
Asked 2 weeks 10 hours ago
Latest activity 1 week 5 days ago

View Query with Keys Not Fully Reduced

Accessing a view through the Ruby client, but this issue does show up through the console. The query is against a two node deployment using 2.2.0 enterprise, build 821.

When I query requesting grouping and *no* keys parameter, I receive a fully reduced set of results. For example, a...

buger's picture
Asked 2 weeks 11 hours ago
Latest activity 6 days 21 hours ago

Data loss with 2.5.1

We definitly have some percent of data loss, and not random, only for certain keys, and we having observer calls, so maybe it is problems with some vbuckets. I even have missing document _id's.

What is the proper way to debug such bugs, to understand if data not get written to disk from...

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