# 2021: The Year in Review

**URL:** https://discuss.elastic.co/t/2021-the-year-in-review/293492
**Category:** Meta Elastic
**Created:** [January 5, 2022, 4:09am UTC](https://discuss.elastic.co/t/2021-the-year-in-review/293492 "2022-01-05T04:09:15Z")
**Posts on this page:** 1
**Showing post:** 6

<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [January 5, 2022, 4:09am UTC](https://discuss.elastic.co/t/2021-the-year-in-review/293492/6 "2022-01-05T04:09:20Z")

</div>

## [Top #APM Topics](https://discuss.elastic.co/c/observability/apm/l/top)

### Most Replies

| User | Topic | Replies |
| --- | --- | --- |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/luis_garavatti/50/84970_2.png) | [Problem with Elastic APM](https://discuss.elastic.co/t/problem-with-elastic-apm/266277) | 28 |
| ![](https://avatars.discourse-cdn.com/v4/letter/c/f475e1/50.png) | [Agent 1.28.1 ERROR No Log4j 2 configuration file found](https://discuss.elastic.co/t/agent-1-28-1-error-no-log4j-2-configuration-file-found/291668) | 23 |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hsabillon/50/92870_2.png) | [APM and Koa unknown route](https://discuss.elastic.co/t/apm-and-koa-unknown-route/281228) | 18 |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dhanaraju_vasireddy/50/81969_2.png) | [APM Agent is not working on FIPS enabled java application](https://discuss.elastic.co/t/apm-agent-is-not-working-on-fips-enabled-java-application/261815) | 18 |
| ![](https://avatars.discourse-cdn.com/v4/letter/y/4da419/50.png) | [Java GRPC Client not ending spans and not reporting to APM](https://discuss.elastic.co/t/java-grpc-client-not-ending-spans-and-not-reporting-to-apm/280643) | 18 |

### Most Popular

| User | Topic | Score |
| --- | --- | --- |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rdrgporto/50/13278_2.png) | [Error Machine Learning in APM with Basic License](https://discuss.elastic.co/t/error-machine-learning-in-apm-with-basic-license/288490) | 17 |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/luis_garavatti/50/84970_2.png) | [Problem with Elastic APM](https://discuss.elastic.co/t/problem-with-elastic-apm/266277) | 17 |
| ![](https://avatars.discourse-cdn.com/v4/letter/c/f475e1/50.png) | [Agent 1.28.1 ERROR No Log4j 2 configuration file found](https://discuss.elastic.co/t/agent-1-28-1-error-no-log4j-2-configuration-file-found/291668) | 17 |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/apox/50/81308_2.png) | [APM Java Agent error](https://discuss.elastic.co/t/apm-java-agent-error/271524) | 16 |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/nitin194/50/92246_2.png) | [Opentelemetry agent unable to connect APM Server over secure connection](https://discuss.elastic.co/t/opentelemetry-agent-unable-to-connect-apm-server-over-secure-connection/280150) | 16 |

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_[View the full topic](https://discuss.elastic.co/t/2021-the-year-in-review/293492)._