Hai Yan

@cmanning09 @dlvenable Thanks for looking into it! PrepperState is implemented by [MapDbPrepperState](https://github.com/opensearch-project/data-prepper/blob/main/data-prepper-plugins/mapdb-prepper-state/src/main/java/com/amazon/dataprepper/plugins/prepper/state/MapDbPrepperState.java), so I assume this should be renamed to MapDbProcessorState as well? I will add those changes to the...

Follow-up issue was created (#1730). Close this one.

@nagarashish @chenqi0805 I think the trace-analytics-sample app does need an update for Data Prepper 2.0, specifically the way it launches and some other changes, so the below no longer works:...

#3867 also falls under this category.

@Naarcha-AWS This is not for 2.7 (map_to_list processor is new for 2.7, for which I opened Issue #6132). The relevant code is released, but the docs have a gap. Specifically,...

@Naarcha-AWS This is not for 2.7. The relevant code is released, but the docs have a gap. Specifically, it's missing: - Details about the `patterns` option under `match` block -...

@dlvenable @KarstenSchnitter Thanks for the comments. I did a test where I called: ```java LOG.error(SENSITIVE, "Failed to process content: [{}]", content, e); ``` and I get these logs with `content`...

> I'm unsure if the way Log4j operates is to give all the parameters, or just the ones that will be formatted into the string. Turns out, by default, pattern...

That may be a concern that we can address separately. The markers we have today cannot filter sensitive information from stack trace. But we do want to show the stack...

@dlvenable This is closed via https://github.com/opensearch-project/data-prepper/pull/2019