Since we upgraded our gluu version from 3.1.5 to 4.1 we are getting some server outages each day, the outages come each 20 - 24 hours so we looked into the log files and we found a "java.lang.outOfMemoryError: Java heap space" error inside the oxauth_script.log file. Also, we found other errors in other log files such "Failed to create LDAP connection pool! Result code: 91" or "Error ocurred while attempting to connect to server localhost:1636" but we thought all of these are related to the first one, when the server outage come because java is out of memory then the LDAP connection could not be established. After trying to login for a while, all this results in a "502 gluu error page". In the beggining we thought that the server outages came because our AWS instance resources were insufficient so we migrated our gluu system to another instance with more resources but this did not solve the problem. Also, we have followed all the related info about Performance Tuning, File descriptors, etc. from the official documentation. Is there anything we can do to avoid these server outages, maybe some server configurations? This is the [drive folder](https://drive.google.com/drive/folders/1bsgidd9ExutvSrJXQunnjtAL_5uEXUxq?usp=sharing) where you can find all the related logs and screenshots. This is our AWS instance configuration: RAM: 4GB HDD: 40GB SWAP: 6GB CPU: 2 Thank you for your support and help!