We have an enterprise application running on Java 8. The deployment environment is built & updated through Bitbucket pipelines. I have a graphic showing the high-level architecture of the environment. We have two app servers running identical configurations apart from some application specific environment…
Tag: out-of-memory
JVM: Non-heap memory causes OutOfMemoryError because the Garbage Collector is not run. What am I doing wrong?
I’ve encountered a weird issue where the Groovy application I’m working on grows to consume more memory (far beyond the limits of the xmx-argument, so it can’t be the heap) until the computer runs out of RAM, at which point the JVM behaves in one of two different ways – it either sudde…
Direct Buffer Memory error when connecting mqtt
we are running an Apache Beam Apllication on a Flink Cluster. Since a few days the application fails with the following error: The connection is build up with the following method: But it runs on my machine When I start the application from my eclipse project all works fine. So the error only happen in the Fl…
How can we simulate OutOfMemory: Metaspace?
I have a task to simulate OutOfMemory: Metaspace error intentionally. I tried different ways, but none gave me needed result. Can someone share good example for this purpose? My first attempt (using javassist): and settings in gradle.properties file: org.gradle.jvmargs=-XX:MaxMetaspaceSize=70M but I’ve …
Jasper report exporting to text results in java.lang.OutOfMemoryError: Java heap space
Currently I am using jasper v 3.7.4 While exporting to any other format (csv,xls,pdf) from the same dataset – I have has no issues. Exporting to text throws: java.lang.OutOfMemoryError: Java heap space at java.util.Arrays.copyOf(Arrays.java:3236) at java.io.ByteArrayOutputStream.grow(ByteArrayOutputStre…
Using Spring data JPA EntityGraph with LAZY load mode for NamedAttributeNode field
I am facing with 2 problems: N + 1 query and Out Of Memory (OOM). I solved OOM by paging and lazy loading: But when I use lazy loading, N + 1 query happened. So I try to use EntityGraph as https://www.baeldung.com/spring-data-jpa-named-entity-graphs. But as my researches and local test, EntityGraph always do …
Why does Java throw java.lang.OutOfMemoryError: Metaspace but there is plenty of free metaspace?
In my application I’m creating lots of java classes at runtime with javassist library. At some point a java.lang.OutOfMemoryError: Metaspace is thrown but java process monitoring (based on java.lang.management.MemoryPoolMXBean) reports that there is plenty of free metaspace. Why is that? And how to use …
Increase the java heap space of a certain app
I have an application that I want to run it and gives it more heap memory. I run my application using this command in terminal: home/bin/hadoop jar $pathofjarfile parameter1 parameter2 but I don’t know how to allocate more heap memory when running this application? if anyone could please advise. Answer …
High memory usage when using Hibernate
I code a server side application with java run on linux server. I use hibernate to open session to database, use native sql to query it and always close this session by try, catch, finally. My server query DB using hibernate with very high frequency. I already define MaxHeapSize for it is 3000M but it usually…
Android: OutOfMemory error and the backstack
the following sheet represents the working flow in the application this question is about. I ran into problems with OutOfMemory Errors, mostly because users were able to switch from activity B to activity D multiple times (They are showing different content for every attempt), without the previous activity be…