/exist/xmlrpc: An unknown error occurred: GC overhead limit exceeded - Errors observed for ExistDB and Exist DB is getting corrupted on regular basis

[sbhusala]

What is the problem

/exist/xmlrpc: An unknown error occurred: GC overhead limit exceeded - Errors observed for ExistDB and Exist DB is getting corrupted on regular basis

What did you expect

Describe what you expected to happen. Add for example a reference to a specification.

Describe how to reproduce or add a test

Describe how we can can reproduce the problem.

Context information

Please always add the following information

• eXist-db version + Git Revision hash e.g. eXist-db 3.0 / acd0c14
• Java version (e.g. Java8u121)
• Operating system (Windows 7, Linux, MacOs)
• 32 or 64 bit
• How is eXist-db installed? (JAR installer, DMG, WAR file, clone from GitHub)
• Any custom changes in e.g. conf.xml
  

[adamretter]

Hey @sbhusala this is a memory related problem. Many memory issues have been fixed since eXist-db 3.0.0, could you please try 4.7.0?

[dizzzz]

additionally, you could try to switch on the G1 garbage collector. but v4.7 is for sure the best step.

[adamretter]

Closing due to inactivity.

[sbhusala]

Dear All,

We have upgraded to 4.7 eXst db version, however we are still receiving GC overhead limit exceeded error. can you please suggest on next steps ?

[duncdrum]

Is there any steps that you can take to reproduce this? If the error occurs on exist v5 please include new info on java version install method and conf.xml changes etc

Can you share a log file?

[sbhusala]

Hi Duncan,

Replication of issue cannot be feasible manually , however it might be because of heavy load ? ( suspect).

java :
java version "1.8.0_91"
Java(TM) SE Runtime Environment (build 1.8.0_91-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.91-b14, mixed mode)

project.version=4.7.0
project.built=201905201236
scm.branch=refs/tags/eXist-4.7.0
scm.revision=64ba5134

[sbhusala]

exist.log
Attached logs as requeste
d.

[dizzzz]

for me, in some cases enabling the G1C garbage collector helped a lot....