Re: memory size and disk size prediction tool

2011-02-01 Thread Mimi Aluminium
Aaron, Thanks a lot for your answer, I had in mind something more generic that I am currently working on. The idea is to have a tool with GUI screens where you can feed-in the various column families you are using with column (names and values) sizes. Then it will have anotehr screen withh applicat

Re: memory size and disk size prediction tool

2011-01-20 Thread Aaron Morton
Not that I know of, do you have an existing test system you can use as a baseline ? For memory have a read of the JVM Heap Size section here http://wiki.apache.org/cassandra/MemtableThresholdsYou will also want to have some memory for disk caching and the os. 8 or 12gb feels like a good start.For d

memory size and disk size prediction tool

2011-01-20 Thread Mimi Aluminium
Hi, We are implementing a 'middlewear' layer to an underneath storage and need to estimate costs for various system configurations. Specifically, I want to estimate the resources (memory, disk) for our data model. Is there a tool that given certain storage configuration parameters, column family