Hi Nikhil, You've specified 4gb for heap size and 4gb for data regions in off heap memory, it's 8gb in total. Since operation system also consumes some amount of memory, 8gb of RAM isn't enough for your case. You should try to reduce heap size/data regions size or increase amount of RAM in your system.
Regards, Igor On Fri, Jul 26, 2019 at 1:20 PM nikhil dhiman <[email protected]> wrote: > I am running java application having Ignite 2.7.5 as dependency > *java -Xms4g -Xmx4g -XX:+AlwaysPreTouch -XX:+UseG1GC > -XX:+ScavengeBeforeFullGC -XX:+DisableExplicitGC -server > -XX:MaxMetaspaceSize=256m -XX:+HeapDumpOnOutOfMemoryError > -XX:+ExitOnOutOfMemoryError -jar > target/java_simple-1.0-SNAPSHOT-jar-with-dependencies.jar* > > This application does nothing except running Ignite server. > > I have specified max memory as 4g and also internal data region memory as > ~ 4g with eviction policy defined. > > > > > > > > > > > > > > > > *DataRegionConfiguration regionCfg = new DataRegionConfiguration(); > regionCfg.setName("chat"); regionCfg.setMaxSize(2000L * > 1024*1024); regionCfg.setInitialSize(1100L * 1024 *1024); > regionCfg.setPageEvictionMode(DataPageEvictionMode.RANDOM_LRU); > regionCfg.setEvictionThreshold(.7); > regionCfg.setMetricsEnabled(true); DataRegionConfiguration > regionCfg2 = new DataRegionConfiguration(); > regionCfg2.setName("btc"); regionCfg2.setMaxSize(2000L * > 1024*1024); regionCfg2.setInitialSize(1100L * 1024 *1024); > regionCfg2.setPageEvictionMode(DataPageEvictionMode.RANDOM_LRU); > regionCfg2.setEvictionThreshold(.7); > regionCfg2.setMetricsEnabled(true); > storageCfg.setDataRegionConfigurations(regionCfg2, regionCfg); > cfg.setDataStorageConfiguration(storageCfg);* > > I am hitting ignite server with 18 clients with average get/put/remove > operation of 2k hits per second. > System on which ignite is running has around 8G of ram. > > When I run my clients[From different server] that hit the Ignite server > for few minutes, it consumes all my system RAM[Ignite server] and it stops > with OOM error. > > I don't understand why it goes beyond the memory specified in the data > region. > > Thanks & Regards, > Nikhil Dhiman >
