Exception in thread "BatchNotifier" java.lang.StackOverflowError about log4j2-elasticsearch HOT 4 CLOSED

@paskalka you have to use a mapping definition that's compatible with your current version of ES cluster.
Have a look at indexTemplate-x.json files here for some very basic test examples. They won't give you a lot of search capabilities, but at least you'll get the basic JSON structure required by each ES version.

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@paskalka Are you still having this issue? I've reproduced the template parsing error by providing indexTemplate-6.json to ES 7 cluster (as expected).

I couldn't reproduce the StackOverflowError though. Could you provide me with more information or steps to reproduce?

Since there were GSON classes in the stacktrace, I'd recommend to configure object pooling as it uses a Jackson serializers and it's much more memory efficient - Jest classes based on GSON serialization allocate huge amounts of memory.

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I've managed to reproduce a StackOverflowError. @paskalka are you still getting the error with v1.4.0?

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StackOverflowError was thrown from GSON trying to serialize pooled ByteBuf. It's possible only when non-pooled jest config (JestHttp) was configured with pooled JacksonJsonLayout. This configuration is invalid and it's documented in core module.

Fixed in 1.3.6. - ConfigurationException is thrown earlier to indicate invalid usage in runtime.

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