Configuring the buffered read size
Configuring the buffered read size can reduce problems with wasted disk I/) and unnecessary garbage collection.
On read workloads, Cassandra 2.1 reads drastically more data than it emits over the network. This causes problems throughput the system by wasting disk I/O and causing unnecessary garbage collection (GC).
The location of the cassandra-env.sh file depends on
the type of installation:
Package installations | /etc/cassandra/cassandra-env.sh |
Tarball installations | install_location/conf/cassandra-env.sh |