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2 partitions in a sharded mysql database

the first one is running at 73% memory utilization. The second one runs at 16% utilization. how can i balance the 2 out?
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1answer
100 views

MongoDB Balancer

So I have 2 sharded clusters with 3 servers each.My mongos is running, my config server is running and ive also added test data to 1 of the 2 shard clusters. I am having trouble getting that data to ...
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1answer
400 views

Why mongo pecl module looses its connection after Primary stepDown?

I run an Apache 2.2.22-13 with pecl module "mongo 1.4.4". It connects to a MongoDB 2.4.6 sharded cluster. When a stepDown occurs, the mongo module seems to stay on the mongod node which was the ...
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1answer
347 views

ASP.NET, reaching the limits of DFSR, and file storage sharding

We run a popular web app, and our backend file storage exists on a file server, replicated to another file server for failover with DFSR. We are reaching the theoretical limits of DFSR, and therefore ...
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1answer
75 views

mongo shard has high number of faults, but top shows only 8% of memory used by mongod

I am investigating some performance issues in my mongo setup. I have 3 query controllers and 6 shards. I'm doing a large batch import/update, and on the 3 query controllers, I'm getting around 200 ...
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110 views

SQl Server sharding

Can SQL Server be sharded for distributed data processing? Or are there any limitations that prevent relational databases from being sharded ?
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When and how should we shard MongoDB when we are bound to physical machines?

We maintain a search service that serves data from MongoDB. Our Mongo production instance is arranged in a 4 node replica set across four physical servers. The database is comprised of several small ...
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0answers
33 views

Merge 7 node mongodb (2.4) cluster into one standalone mongo shard

I'm running a 7 node mongodb sharded cluster (version 2.4...). I would like to merge this into a standalone shard with 7 times the disk-space. I've tried to create the single shard instance and ...
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42 views

Sharding Solr : how do we get the most out of our servers?

We've got 4 virtual servers which hosts Solr. Each server has 4 processors (each with a single core) and 32GB RAM. As it is now, the index contains 15 million documents at about 50GB. Right now, ...
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135 views

Replicated MongoDB server slower than simple shards

I tried to compare the performance of a sharded configuration against a sharded and replicated configuration. The sharded configuration consists of 8 shards each running on three different machines ...