jvm parameters used - -Xmx6144m -XX:NewSize=512m -XX:+UseTLAB -XX:+UseG1GC -XX:MaxGCPauseMillis=500 -XX:+ScavengeBeforeFullGC -XX:+DisableExplicitGC -Xloggc:C:/Anil/dumps/gc-client.log -XX:+HeapDumpOnOutOfMemoryError -XX:+PrintGCCause -XX:+PrintGCDetails -XX:+PrintAdaptiveSizePolicy -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -XX:+HeapDumpAfterFullGC -XX:+ScavengeBeforeFullGC -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:+PrintFlagsFinal -XX:HeapDumpPath=C:/Anil/dumps/heapdump-client.hprof
Thanks. On 10 June 2017 at 15:06, Anil <[email protected]> wrote: > HI, > > I have implemented export feature of ignite data using JDBC Interator > > ResultSet rs = statement.executeQuery(); > > while (rs.next()){ > // do operations > > } > > and fetch size is 200. > > when i run export operation twice for 4 L records whole 6B is filled up > and never getting released. > > Initially i thought that operations transforting result set to file > causing the memory full. But not. > > I just did follwoing and still the memory is growing and not getting > released > > while (rs.next()){ > // nothing > } > > num #instances #bytes class name > ---------------------------------------------- > 1: 55072353 2408335272 [C > 2: 54923606 1318166544 java.lang.String > 3: 779006 746187792 [B > 4: 903548 304746304 [Ljava.lang.Object; > 5: 773348 259844928 net.juniper.cs.entity.InstallBase > 6: 4745694 113896656 java.lang.Long > 7: 1111692 44467680 sun.nio.cs.UTF_8$Decoder > 8: 773348 30933920 org.apache.ignite.internal. > binary.BinaryObjectImpl > 9: 895627 21495048 java.util.ArrayList > 10: 12427 16517632 [I > > > Not sure why string objects are getting increased. > > Could you please help in understanding the issue ? > > Thanks >
