# Logstash 2.1.1 - Output to Redis

**URL:** <https://discuss.elastic.co/t/logstash-2-1-1-output-to-redis/39271>\
**Category:** Logstash\
**Created:** [January 14, 2016, 8:54pm UTC](https://discuss.elastic.co/t/logstash-2-1-1-output-to-redis/39271 "2016-01-14T20:54:11Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Ahamed\_Musthafa](https://avatars.discourse-cdn.com/v4/letter/a/9de053/32.png) [@Ahamed\_Musthafa](https://discuss.elastic.co/u/Ahamed_Musthafa)\
**Post date:** [January 14, 2016, 8:54pm UTC](https://discuss.elastic.co/t/logstash-2-1-1-output-to-redis/39271/1 "2016-01-14T20:54:12Z")

</div>

Hello Team,

I recently upgraded Logstash to 2.1.1 from 1.4.0. The pipeline works fine with my product, however following errors surfacing in /var/log/logstash/logstash.log.

{:timestamp=\>"2016-01-14T17:50:09.683000+0000", :message=\>"Failed to flush outgoing items", :outgoing\_count=\>15, :exception=\>"Redis::CommandError", :backtrace=\>["/opt/logstash/vendor/bundle/jruby/1.9/gems/redis-3.2.2/lib/redis/client.rb:114:in `call'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/redis-3.2.2/lib/redis.rb:1030:in`rpush'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/redis-3.2.2/lib/redis.rb:57:in `synchronize'", "/opt/logstash/vendor/jruby/lib/ruby/1.9/monitor.rb:211:in`mon\_synchronize'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/redis-3.2.2/lib/redis.rb:57:in `synchronize'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/redis-3.2.2/lib/redis.rb:1029:in`rpush'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-output-redis-2.0.2/lib/logstash/outputs/redis.rb:200:in `flush'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.22/lib/stud/buffer.rb:221:in`buffer\_flush'", "org/jruby/RubyHash.java:1342:in `each'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.22/lib/stud/buffer.rb:216:in`buffer\_flush'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.22/lib/stud/buffer.rb:193:in `buffer_flush'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.22/lib/stud/buffer.rb:112:in`buffer\_initialize'", "org/jruby/RubyKernel.java:1479:in `loop'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.22/lib/stud/buffer.rb:110:in`buffer\_initialize'"], :level=\>:warn}

{:timestamp=\>"2016-01-14T17:50:09.685000+0000", :message=\>"Failed to send backlog of events to Redis", :identity=\>"default", :exception=\>#\<Redis::CommandError: MISCONF Errors writing to the AOF file: Read-only file system\>, :backtrace=\>["/opt/logstash/vendor/bundle/jruby/1.9/gems/redis-3.2.2/lib/redis/client.rb:114:in `call'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/redis-3.2.2/lib/redis.rb:1030:in`rpush'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/redis-3.2.2/lib/redis.rb:57:in `synchronize'", "/opt/logstash/vendor/jruby/lib/ruby/1.9/monitor.rb:211:in`mon\_synchronize'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/redis-3.2.2/lib/redis.rb:57:in `synchronize'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/redis-3.2.2/lib/redis.rb:1029:in`rpush'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/logstash-output-redis-2.0.2/lib/logstash/outputs/redis.rb:200:in `flush'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.22/lib/stud/buffer.rb:221:in`buffer\_flush'", "org/jruby/RubyHash.java:1342:in `each'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.22/lib/stud/buffer.rb:216:in`buffer\_flush'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.22/lib/stud/buffer.rb:193:in `buffer_flush'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.22/lib/stud/buffer.rb:112:in`buffer\_initialize'", "org/jruby/RubyKernel.java:1479:in `loop'", "/opt/logstash/vendor/bundle/jruby/1.9/gems/stud-0.0.22/lib/stud/buffer.rb:110:in`buffer\_initialize'"], :level=\>:warn}

Redis output config:

```
  redis {
    host => [
      '10.8.10.100',
      '10.8.10.101'
    ]
    port => 6379
    db => 0
    password => 'XXXXXXXXX'
    shuffle_hosts => true
    data_type => 'list'
    key => 'logstash:stallion'
    workers => 4
    batch => true
  }

```

And, my version on my Redis queues - 10.8.10.100/11:

Redis server v=2.8.9 sha=00000000:0 malloc=jemalloc-3.2.0 bits=64 build=4066a43f25169284

Thanks/AM

---

<div class="post-metadata">

**Author:** ![Ahamed\_Musthafa](https://avatars.discourse-cdn.com/v4/letter/a/9de053/32.png) [@Ahamed\_Musthafa](https://discuss.elastic.co/u/Ahamed_Musthafa)\
**Post date:** [January 18, 2016, 3:47pm UTC](https://discuss.elastic.co/t/logstash-2-1-1-output-to-redis/39271/2 "2016-01-18T15:47:11Z")

</div>

Any reply from Logstash team would be highly appreciated!!! Thanks in advance.

Regards/AM

---

<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:** [July 6, 2017, 5:15am UTC](https://discuss.elastic.co/t/logstash-2-1-1-output-to-redis/39271/3 "2017-07-06T05:15:20Z")

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