I'm new to cassandra How do I find those out? - mainly, the partition params that you asked for. Others, I think I can figure out.
We don't have any large objects/blobs in the column values - it's all textual, date-time, numeric and uuid data. We use cassandra to primarily store segmentation data - with segment type as partition key. That is again divided into two separate column families; but they have similar structure. Columns per row can be fairly large - each segment type as the row key and associated user ids and timestamp as column value. Thanks, Kunal On 10 July 2015 at 16:36, Jack Krupansky <jack.krupan...@gmail.com> wrote: > What does your data and data model look like - partition size, rows per > partition, number of columns per row, any large values/blobs in column > values? > > You could run fine on an 8GB system, but only if your rows and partitions > are reasonably small. Any large partitions could blow you away. > > -- Jack Krupansky > > On Fri, Jul 10, 2015 at 4:22 AM, Kunal Gangakhedkar < > kgangakhed...@gmail.com> wrote: > >> Attaching the stack dump captured from the last OOM. >> >> Kunal >> >> On 10 July 2015 at 13:32, Kunal Gangakhedkar <kgangakhed...@gmail.com> >> wrote: >> >>> Forgot to mention: the data size is not that big - it's barely 10GB in >>> all. >>> >>> Kunal >>> >>> On 10 July 2015 at 13:29, Kunal Gangakhedkar <kgangakhed...@gmail.com> >>> wrote: >>> >>>> Hi, >>>> >>>> I have a 2 node setup on Azure (east us region) running Ubuntu server >>>> 14.04LTS. >>>> Both nodes have 8GB RAM. >>>> >>>> One of the nodes (seed node) died with OOM - so, I am trying to add a >>>> replacement node with same configuration. >>>> >>>> The problem is this new node also keeps dying with OOM - I've restarted >>>> the cassandra service like 8-10 times hoping that it would finish the >>>> replication. But it didn't help. >>>> >>>> The one node that is still up is happily chugging along. >>>> All nodes have similar configuration - with libjna installed. >>>> >>>> Cassandra is installed from datastax's debian repo - pkg: dsc21 version >>>> 2.1.7. >>>> I started off with the default configuration - i.e. the default >>>> cassandra-env.sh - which calculates the heap size automatically (1/4 * RAM >>>> = 2GB) >>>> >>>> But, that didn't help. So, I then tried to increase the heap to 4GB >>>> manually and restarted. It still keeps crashing. >>>> >>>> Any clue as to why it's happening? >>>> >>>> Thanks, >>>> Kunal >>>> >>> >>> >> >
