Re: Many creation/inserts in parallel

2013-04-29 Thread Sasha Yanushkevich
1) We’ve tested 100 threads in parallel and each thread created 10 tables. I think we will change our data model, but another problem may occur. About 80% of these CFs should be truncated every day and if we decrease many CF by creating one key field in one CF, a huge amount of tombstones will

Re: Many creation/inserts in parallel

2013-04-28 Thread aaron morton
At first many CF are being created in parallel (about 1000 CF). Can you explain this in a bit more detail ? By in parallel do you mean multiple threads creating CF's at the same time ? I would also recommend taking a second look at your data model, you probably do not want to create so

Many creation/inserts in parallel

2013-04-26 Thread Sasha Yanushkevich
Hi All We are testing Cassandra 1.2.3 (3 nodes with RF:2) with FluentCassandra driver. At first many CF are being created in parallel (about 1000 CF). After creation is done follows many insertions of little amount of data into the DB. During tests we're receiving some exceptions from driver,