Take the 2-minute tour ×  I'm working with datastax 3.1 on a
single node with 4Go of RAM. I have not change anything in
cassandra-en.sh and cassandra.yaml except the "--Xss" (because
of my java version which require a little more) So by default
Cassandra set to 1Go my -Xms and -Xmx parameters: -Xms1024M
-Xmx1024M  But while inserting my data after around 200 000 rows
(in 3 different column_families), Solr and cassandra logs keep
repeat this kind of warning:  WARN StorageService Flushing
CFS(Keyspace='OpsCenter',​ ColumnFamily='rollups60') to relieve
memory pressure 17:58:07   So, OK my heap is full, but why after
flushing, is my heap still full ?  If I stop inserting data at
this point. Warning keep repeating. If I stop and restart
cassandra. No problem raise  It looks like memory leak issue
right? So where should I look at?  Thanks for futur help.
share|improve this question add comment  2 Answers  Cassandra is
trying to clear up heap space, however flushing memtables
doesn't flush Solr heap data structures