heap size

(from github.com/MajidSafari)
how can i heap increase ?

2017-02-19 18:11:41,891 [IndexUpdater] INFO Processing 5/10 docs (Doc:{access 5ms}, Mem:{used 1GB, heap 1GB, max 9GB})

(from github.com/marevol)
As for Crawler, max heap size is in fess_config.properties:

jvm.crawler.options=\
...
-Xmx512m\n\

(from github.com/MajidSafari)
i add 10g but

2017-02-20 11:24:12,102 [IndexUpdater] INFO Processing no docs (Doc:{access 2ms}, Mem:{used 601MB, heap 1GB, max 9GB})

less than 1g

jvm.crawler.options=\
-Djava.awt.headless=true\n\
-server\n\
-Xmx10g\n\

(from github.com/marevol)
-Xmx is max heap size.
See JVM options for -Xms and -Xmx.

(from github.com/MajidSafari)
tanx

# JVM options jvm.crawler.options=\ -Djava.awt.headless=true\n\ -server\n\ -Xms5g\n\ -Xmx10g\n\