# 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:** 4

<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/293492/4 "2022-01-05T04:09:19Z")

</div>

## [Top #Logstash Topics](https://discuss.elastic.co/c/elastic-stack/logstash/l/top)

### Most Read

| User | Topic | Hours Read |
| --- | --- | --- |
| ![](https://avatars.discourse-cdn.com/v4/letter/i/f0a364/50.png) | [Logstash stopped processing because of an error: (SystemExit) exit](https://discuss.elastic.co/t/logstash-stopped-processing-because-of-an-error-systemexit-exit/275744) | 12 |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jzandbergen/50/98677_2.png) | [CVE-2021-44228 aka log4shell is logstash and/or elasticsearch affected?](https://discuss.elastic.co/t/cve-2021-44228-aka-log4shell-is-logstash-and-or-elasticsearch-affected/291415) | 10 |
| ![](https://avatars.discourse-cdn.com/v4/letter/s/c68b51/50.png) | [Delete JndiLookup.class](https://discuss.elastic.co/t/delete-jndilookup-class/291507) | 7 |
| ![](https://avatars.discourse-cdn.com/v4/letter/i/cab0a1/50.png) | [How to parase xml in logstash](https://discuss.elastic.co/t/how-to-parase-xml-in-logstash/285214) | 7 |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hamza_el_aouane/50/82411_2.png) | [This interval creates too many buckets to show in the selected time rage](https://discuss.elastic.co/t/this-interval-creates-too-many-buckets-to-show-in-the-selected-time-rage/273001) | 7 |

### Most Replies

| User | Topic | Replies |
| --- | --- | --- |
| ![](https://avatars.discourse-cdn.com/v4/letter/r/d6d6ee/50.png) | [Convert field containing a timestamp from string to a date / time or timestamp?](https://discuss.elastic.co/t/convert-field-containing-a-timestamp-from-string-to-a-date-time-or-timestamp/265594) | 47 |
| ![](https://avatars.discourse-cdn.com/v4/letter/m/e56c9b/50.png) | [Logstash not sending syslog to elasticsearch](https://discuss.elastic.co/t/logstash-not-sending-syslog-to-elasticsearch/289020) | 41 |
| ![](https://avatars.discourse-cdn.com/v4/letter/a/9fc348/50.png) | [SQSSNSS3 plugin error queue not valid for endpoint](https://discuss.elastic.co/t/sqssnss3-plugin-error-queue-not-valid-for-endpoint/282685) | 39 |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/john_snow/50/77761_2.png) | [Logstash Lookup Fields](https://discuss.elastic.co/t/logstash-lookup-fields/289357) | 35 |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/pkward/50/95305_2.png) | [Ingesting JSON Data Samples w/ Logstash](https://discuss.elastic.co/t/ingesting-json-data-samples-w-logstash/275185) | 33 |

### Most Popular

| User | Topic | Score |
| --- | --- | --- |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jzandbergen/50/98677_2.png) | [CVE-2021-44228 aka log4shell is logstash and/or elasticsearch affected?](https://discuss.elastic.co/t/cve-2021-44228-aka-log4shell-is-logstash-and-or-elasticsearch-affected/291415) | 22 |
| ![](https://avatars.discourse-cdn.com/v4/letter/s/c68b51/50.png) | [Delete JndiLookup.class](https://discuss.elastic.co/t/delete-jndilookup-class/291507) | 19 |
| ![](https://avatars.discourse-cdn.com/v4/letter/i/f0a364/50.png) | [Logstash stopped processing because of an error: (SystemExit) exit](https://discuss.elastic.co/t/logstash-stopped-processing-because-of-an-error-systemexit-exit/275744) | 18 |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vikram_singh/50/66490_2.png) | [Connection refused logstash to elasticsearch](https://discuss.elastic.co/t/connection-refused-logstash-to-elasticsearch/262970) | 18 |
| ![](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/automation_scripts/50/85374_2.png) | [Logstash Parser error - tried to parse field as object, but found a concrete value](https://discuss.elastic.co/t/logstash-parser-error-tried-to-parse-field-as-object-but-found-a-concrete-value/269140) | 18 |

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