Neo4j: How to config the heap size and verify the setting

Setting Max_Heap_Size

We can set the parameters of heap size in Neo4j graph database by changing "neo4j.conf"

The default location of neo4j is   "/neo4j/conf/ "

Simply remove # from the the following lines and set the size as you want. "m" represents Mega Bytes and "g" represents the Giga Bytes

dbms.memory.heap.initial_size=512m
dbms.memory.heap.max_size=2g


Verify Max_Heap_Size

Following is the command to verify the size  you set.

$ CALL dbms.listConfig("heap");

The output will look like

name	description	value	dynamic
"dbms.memory.heap.initial_size"	"Initial heap size. By default it is calculated based on available system resources."	"512m"	false
"dbms.memory.heap.max_size"	"Maximum heap size. By default it is calculated based on available system resources."	"4G"	false