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Questions tagged [nosql]

58 questions
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2 answers

pnp4nagios is not creating graph for new services / hosts

I have working nagios infrastructure with pnp4nagios. Last days I added new host nosql and alerts of mongodb which is installed there. Host configuration: define host{ host_name nosql use …
bluszcz
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4 answers

50,000 file in one directory, what is my best option?

I'm forced to have this directory structure /var/www/$WEBSITE/$DIR1/$DIR2/$FILES for each of those $FILES, there is approx 50,000 XHTML pages. I'm running Cherokee, which has new front-end caching support. But i'm somewhat memory limited, so I can't…
J. M. Becker
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Database which only holds indexes and last X records in memory?

I'm looking for a data store that is very memory efficient while still allowing many object changes per second and disregarding ACID compliance for the last X records. I need this database for a server with not much memory and I can make a key-value…
Xeoncross
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RedisToGo - remote Redis server. When to use one?

I like the concept of relying on third-party service hosting my data but what's the point of using super-fast NoSQL storage via remote hosting? It maybe in different datacenter or even country! And network calls always cost a lot in comparison with…
user45286
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3 answers

Tokyo Tyrant ulog / update log management

I'm testing Tokyo Tyrant in a master-master setup and have found the ulog grows out of control and locks up the disk. At first I found the -ulim option useful and limited the logfile size, however it simply rolls over to a new log, leaving the old…
Nathan Milford
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Pairing MySQL and NoSQL Solutions

We have some fairly large datasets (user events and server log information - >100 GB) that's becoming fairly unwieldy for data processing. I've seen lots of activity around NoSQL/Hadoop/etc and I was wondering what SV had to say about a paired…
aronchick
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High performance, fast yet Durable databases?

Up until recently I was using mongo to try and stem to tide of massive MySQL upgrades to system servers, however, after reading this: http://www.mikealrogers.com/2010/07/mongodb-performance-durability/ I have halted production of a mongo version of…
Sammaye
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Very strange disk-usage for replica in Mongodb

tl;dr: the new 2.6 replica eats up a lot more disk space than the 2.4 members. We're heavy users of MongoDB's GridFS. We're currently on 2.4, and are intending to upgrade to 2.6 by simply adding a new replica members and gradually deprecate the 2.4…
vpetersson
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Changing Cassandra Tokens on 1.2.1 From 4 to 256

We initially started our cluster using one datacenter, one rack, and the Simple replication strategy. We have keyspaces with several hundred gigabytes of data. When we changed the tokens in the cassandra.yaml on this cluster from 4 to 256, and…
Heat Miser
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automatically start and and selectively stop multiple instances of couchdb on osx

I have successfully installed couchdb via homebrew: % brew install couchdb ...and invoked mutiple instances as directed here: % OLD=/usr/local % NEW=/tmp/couchdb % mkdir -p $NEW/etc/couchdb/ % mkdir -p $NEW/var/{lib,log,run}/couchdb/ % cp…
Inator
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How to control databases replicated by Mongo DB replica set

I have 2 databases in my mongo DB namespace, lets name them db1, db2 and db3 which are on the same dbpath. Is it possible to configure mongo db replica set in that way that db3 wont be replicated across secondaries? If yes, how?
maciejmrowiec
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Is this normal or due to bug in mongodb?

I am new to mongodb and i installed it on xen para virtual vm and when given command "mongo" terminal freezed and on the top output command mongo is taking almost 100% CPU. Is this a bug,or does the mongo command made the scheduler to consider the…
Kevin Parker
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Is there a "rigorous" method for choosing a database?

I'm not experienced with NoSQL, but one person on my team is calling for its use. I believe our data and its usage isn't optimal for a NoSQL implementation. However, my understanding is based off reading various threads on various websties. I'd like…
vowel-house-might
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Should I use vm or set the maxmemory with Redis' 2.4

In redis 2.4 the vm-enabled no is the default, so I am using redis as database (not cache), and maybe occasionally the db size is larger than the memory, should I enable it? Or should I enfore maxmemory to prevent data loss?
Ryan
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SQLite-like NoSQL option?

SQLite is nice for small, standalone projects, since the data file is a single object that lives with the project. Most of the NoSQL solutions I've seen are servers that store data there. Is there a NoSQL solution that keeps the data in a single…
MidnightLightning
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