# Advantages of using redis **URL:** \ **Category:** Logstash\ **Created:** [July 21, 2021, 3:08am UTC](https://discuss.elastic.co/t/advantages-of-using-redis/279216 "2021-07-21T03:08:29Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![111387](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/111387/32/75408_2.png) [@111387](https://discuss.elastic.co/u/111387)\ **Post date:** [July 21, 2021, 3:08am UTC](https://discuss.elastic.co/t/advantages-of-using-redis/279216/1 "2021-07-21T03:08:29Z")
Look at some documentation when building the ELK. Sometimes install Redis in front of Logstash. Even though Logstash provides a buffer, is there any advantage to installing Logstash in front? If Redis is present but not, but Elasticsearch does not receive logs, the logs are left in a queue or buffer. ---
**Author:** ![AquaX](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/aquax/32/92006_2.png) [@AquaX](https://discuss.elastic.co/u/AquaX)\ **Post date:** [July 22, 2021, 1:58pm UTC](https://discuss.elastic.co/t/advantages-of-using-redis/279216/2 "2021-07-22T13:58:49Z")
You can manually enable persistent queues in logstash if you want logstash to hang on to messages before they are processed or if you think that there could be a communication problem with the output of logstash. Read this article for reference: > **[Persistent Queues | Logstash Reference \[7.13\] | Elastic](https://www.elastic.co/guide/en/logstash/current/persistent-queues.html)** ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [August 19, 2021, 1:59pm UTC](https://discuss.elastic.co/t/advantages-of-using-redis/279216/3 "2021-08-19T13:59:16Z")
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