Carson Ip

OpenTelemetry plugin: non-compliant HTTP client spans

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### Is there an existing issue for this? - [x] I have searched the existing issues ### Kong version (`$ kong version`) kong/kong-gateway:3.9.0.0 ### Current Behavior Kong OpenTelemetry plugin creates...

monitoring: TBS lsm_size and value_log_size are reported less frequently than other TBS metrics

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**APM Server version** (`apm-server version`): 9.0 **Description of the problem including expected versus actual behavior**: `apm-server.sampling.tail.storage.lsm_size` and `apm-server.sampling.tail.storage.value_log_size` are reported less frequently (~15mins) than other TBS metrics e.g. `apm-server.sampling.tail.dynamic_service_groups` (~1min)....

WIP: configurable pebble cache size

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## Motivation/summary WIP: looking for TBS bottleneck on larger instance sizes ## Checklist - [ ] Update [CHANGELOG.asciidoc](https://github.com/elastic/apm-server/blob/main/CHANGELOG.asciidoc) - [ ] Documentation has been updated For functional changes, consider: -...

Fix release automation to work with md instead of asciidoc

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From 9.0, docs are markdown files, not asciidoc files. See https://github.com/elastic/apm-server/pull/16082. Release automation around changelog needs to be updated accordingly. Note that 8.x still relies on asciidoc.

Related to https://github.com/elastic/apm-server/issues/17117 TBS pubsub does not emit enough metrics to troubleshoot issues. Stub issue to increase observability of TBS pubsub. Any addition of metrics need to update metrics related...

[meta] Tail-based sampling (TBS) improvements

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This is a meta-issue on tail-based sampling. Tail-based sampling comes up frequently in bug reports, as there is minimal documentation and guidance on TBS configuration. It is not clear to...

Add documentation on the known issue about Kong OpenTelemetry Plugin leading to missing dependency link in APM Service Map. # Description of problem ## To reproduce I have a playground...

monitoring: expose storage limit and disk metrics for TBS monitoring

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From comment https://github.com/elastic/apm-server/issues/14247#issuecomment-2576116925 8.x and 9.x: As apm-server exposes lsm_size and value_log_size as monitoring metrics, expose configured storage limit as well. Then it will be possible to plot db size...

{transaction,span}.duration.us is unset if {transaction,span}.duration exists

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``` { "script": { "if": "ctx[ctx.processor.event]?.duration == null", "source": """def eventDuration = ctx.event?.duration ?: 0; def rootObjectName = ctx.processor?.event; def rootObject = ctx[rootObjectName]; if (rootObject == null) { rootObject =...

OTLP/gRPC message size limit is fixed at 4MB

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If the decompressed grpc message exceeds 4MB, the collector sending to apm-server logs the following error. ``` 2024-11-25T04:08:26.561Z error internal/queue_sender.go:100 Exporting failed. Dropping data. {"kind": "exporter", "data_type": "traces", "name": "otlp",...