com.datadog.debugger.exception potential memory leak

[Manan-Kothari]

We upgraded our java tracing library using the admission controller on all of our java services about 2 weeks ago from 1.34.0 to 1.41.1 and we've noticed on a few of our services we're seeing OOMkills on our containers. After getting a heap dump and looking at it, it seems to be related to this

One instance of com.datadog.debugger.exception.ExceptionProbeManager loaded by datadog.trace.bootstrap.DatadogClassLoader @ 0x80901ca0 occupies 1,875,689,408 (90.67%) bytes. The memory is accumulated in one instance of com.datadog.debugger.util.WeakIdentityHashMap$Entry[], loaded by datadog.trace.bootstrap.DatadogClassLoader @ 0x80901ca0, which occupies 1,875,682,856 (90.67%) bytes.

We're on Java 17 using this image eclipse-temurin:17.0.12_7-jre

[jpbempel]

Thanks for raising this issue, we will look into that.

[jpbempel]

Hi @Manan-Kothari , you can disable the Exception Replay feature to avoid this mem leak in the meantime

[Manan-Kothari]

Will do, and thanks for the quick update.

[jpbempel]

we have merged the fix into master in #7885