Hi,
I am starting gridgain using a java program as given below
try {
ignite = Ignition.start("/opt/GridGain/config/default-server.xml");
} catch (Exception ex) {
ex.printStackTrace();
}
The above program is executed using the below command to start the ignite
server. In default-server.xml no other configuration is given except IPAddress
in TCPDiscoverypi.
====================================================================
/usr/java/jdk1.8.0_121/bin/java -classpath
.:./*:$IGNITE_HOME/libs/*:$IGNITE_HOME/libs/ignite-spring/*:$IGNITE_HOME/libs/ignite-rest-http/*::$IGNITE_HOME/libs/ignite-indexing/*
<classfilename>
[12:04:13,973][INFO][main][GridDiscoveryManager] Topology snapshot [ver=1,
servers=1, clients=0, CPUs=32, heap=25.0GB] -
How is this 25GB derived? In another machine with lower memory I tried and it
is seen it is taking 3 GB there. Can someone please explain how the heap 25GB
is taken by default in this system.
Top output from the system for the java process which started the gridgain
server is given below
top - 12:13:41 up 1 day, 23:37, 3 users, load average: 1.12, 1.19, 1.00
Tasks: 24 total, 1 running, 23 sleeping, 0 stopped, 0 zombie
%Cpu(s): 2.1 us, 1.1 sy, 0.0 ni, 96.7 id, 0.0 wa, 0.0 hi, 0.1 si, 0.0 st
KiB Mem : 11741217+total, 10124566+free, 8303980 used, 7862532 buff/cache
KiB Swap: 2097148 total, 2097148 free, 0 used. 10860382+avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
7677 root 20 0 39.875g 462556 14732 S 0.7 0.4 0:16.86 java
-Xmx20G is set in java
/usr/java/jdk1.8.0_121/bin/java -DIGNITE_QUIET=false -verbose:gc -Xmx20g then
heap is 18GB.
[12:38:46,153][INFO][main][GridDiscoveryManager] Topology snapshot [ver=1,
servers=1, clients=0, CPUs=32, heap=18.0GB]
top - 12:40:08 up 2 days, 3 min, 2 users, load average: 1.63, 1.33, 1.10
Tasks: 22 total, 1 running, 21 sleeping, 0 stopped, 0 zombie
%Cpu(s): 4.8 us, 1.3 sy, 0.0 ni, 93.7 id, 0.1 wa, 0.0 hi, 0.1 si, 0.0 st
KiB Mem : 11741217+total, 10140552+free, 8137208 used, 7869452 buff/cache
KiB Swap: 2097148 total, 2097148 free, 0 used. 10877128+avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
8097 root 20 0 31.589g 424924 14696 S 1.0 0.4 0:11.64 java
