tomcat - Reason for sudden JVM crash -

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background : have spring boot app running on tomcat,and running fine past couple of months. last week,i added feature update , wherein parsing considerably large csv file(about 90 mb) ,and storing csv data in couple of hashmaps. takes 20 sec or parse , 600 mb of space in jvm once loaded. parsing , loading happens on startup, i.e when spring boot app deployed. problem is,ever since i've added feature app,the jvm crashes sporadically. app runs fine few hours,then crashes. or jvm crashes app deployed.this happens atleast 3-4 times in day , , suffering downtime because of it. also,i can't seem find in tomcat logs. appreciate if can point me out in direction debug damn crash. thank you.

it linux oom killer kills application, because of wrong xmx setup. can try @ dmesg log. dmesg -t | grep kill , find line killing app.


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