Changing the stack size and memtable space
Where is the cassandra.yaml file?
The location of the cassandra.yaml file depends on the type of installation:
| Installation Type | Location |
|---|---|
Package installations + Installer-Services installations |
|
Tarball installations + Installer-No Services installations |
|
Where is the cassandra-env.sh file?
The location of the cassandra-env.sh file depends on the type of installation:
| Installation Type | Location |
|---|---|
Package installations + Installer-Services installations |
|
Tarball installations + Installer-No Services installations |
|
Some Solr users have reported that increasing the stack size improves performance under Tomcat.
To increase the stack size, uncomment and modify the default -Xss256k setting in the cassandra-env.sh file.
Also, decreasing the memtable space to make room for Solr caches might improve performance.
Modify the memtable space using the memtable_heap_space_in_mb and memtable_offheap_space_in_mb properties in the cassandra.yaml file.
