# Client write error, trying connect {:e=\>#\\ **Category:** Logstash\ **Created:** [January 8, 2021, 7:20pm UTC](https://discuss.elastic.co/t/client-write-error-trying-connect-e-ioerror-connection-reset-by-peer/260571 "2021-01-08T19:20:09Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![PraveenKT](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/praveenkt/32/35483_2.png) [@PraveenKT](https://discuss.elastic.co/u/PraveenKT)\ **Post date:** [January 8, 2021, 7:20pm UTC](https://discuss.elastic.co/t/client-write-error-trying-connect-e-ioerror-connection-reset-by-peer/260571/1 "2021-01-08T19:20:09Z")
After restarting logstash, after few hours, beats data is not sending to elasticsearch. Beats ---\> Logstash ----\> logstash ---\> Elasticsearch. I have 2 logstash servers in the site, I am getting below error on one logstash server but not another one. Both are In loadbalancind mode in beats configuration. after getting below logs I am not seeing beats data in dashboards. after restarling logstash it working up to few hours. ```auto sh-core/lib/logstash/java_pipeline.rb:295:in `block in start_workers'"]} [2021-01-08T03:43:46,436][ERROR][logstash.outputs.lumberjack][main][8a1d8ddb43902b665dd1873513aeb88d0d23ac3009f5556624f7e941b9d6c05f] Client write error, trying connect {:e=>#, :backtrace=>["org/jruby/ext/openssl/SSLSocket.java:950:in `syswrite'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/jls-lumberjack-0.0.26/lib/lumberjack/client.rb:107:in `send_window_size'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/jls-lumberjack-0.0.26/lib/lumberjack/client.rb:127:in `write_sync'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/jls-lumberjack-0.0.26/lib/lumberjack/client.rb:42:in `write'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-lumberjack-3.1.7/lib/logstash/outputs/lumberjack.rb:65:in `flush'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/stud-0.0.23/lib/stud/buffer.rb:219:in `block in buffer_flush'", "org/jruby/RubyHash.java:1415:in `each'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/stud-0.0.23/lib/stud/buffer.rb:216:in `buffer_flush'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/stud-0.0.23/lib/stud/buffer.rb:159:in `buffer_receive'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-lumberjack-3.1.7/lib/logstash/outputs/lumberjack.rb:52:in `block in register'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-codec-json-3.0.5/lib/logstash/codecs/json.rb:42:in `encode'", "/usr/share/logstash/logstash-core/lib/logstash/codecs/delegator.rb:48:in `block in encode'", "org/logstash/instrument/metrics/AbstractSimpleMetricExt.java:65:in `time'", "org/logstash/instrument/metrics/AbstractNamespacedMetricExt.java:64:in `time'", "/usr/share/logstash/logstash-core/lib/logstash/codecs/delegator.rb:47:in `encode'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-lumberjack-3.1.7/lib/logstash/outputs/lumberjack.rb:59:in `receive'", "/usr/share/logstash/logstash-core/lib/logstash/outputs/base.rb:105:in `block in multi_receive'", "org/jruby/RubyArray.java:1809:in `each'", "/usr/share/logstash/logstash-core/lib/logstash/outputs/base.rb:105:in `multi_receive'", "org/logstash/config/ir/compiler/OutputStrategyExt.java:143:in `multi_receive'", "org/logstash/config/ir/compiler/AbstractOutputDelegatorExt.java:121:in `multi_receive'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:295:in `block in start_workers'"]} [2021-01-08T08:09:34,406][ERROR][logstash.outputs.lumberjack][main][8a1d8ddb43902b665dd1873513aeb88d0d23ac3009f5556624f7e941b9d6c05f] Client write error, trying connect {:e=>#, :backtrace=>["org/jruby/ext/openssl/SSLSocket.java:857:in `sysread'", "uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/jopenssl23/openssl/buffering.rb:57:in `fill_rbuff'", "uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/jopenssl23/openssl/buffering.rb:98:in `read'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/jls-lumberjack-0.0.26/lib/lumberjack/client.rb:157:in `read_version_and_type'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/jls-lumberjack-0.0.26/lib/lumberjack/client.rb:145:in `ack'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/jls-lumberjack-0.0.26/lib/lumberjack/client.rb:134:in `write_sync'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/jls-lumberjack-0.0.26/lib/lumberjack/client.rb:42:in `write'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-lumberjack-3.1.7/lib/logstash/outputs/lumberjack.rb:65:in `flush'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/stud-0.0.23/lib/stud/buffer.rb:219:in `block in buffer_flush'", "org/jruby/RubyHash.java:1415:in `each'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/stud-0.0.23/lib/stud/buffer.rb:216:in `buffer_flush'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/stud-0.0.23/lib/stud/buffer.rb:159:in `buffer_receive'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-lumberjack-3.1.7/lib/logstash/outputs/lumberjack.rb:52:in `block in register'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-codec-json-3.0.5/lib/logstash/codecs/json.rb:42:in `encode'", "/usr/share/logstash/logstash-core/lib/logstash/codecs/delegator.rb:48:in `block in encode'", "org/logstash/instrument/metrics/AbstractSimpleMetricExt.java:65:in `time'", "org/logstash/instrument/metrics/AbstractNamespacedMetricExt.java:64:in `time'", "/usr/share/logstash/logstash-core/lib/logstash/codecs/delegator.rb:47:in `encode'", "/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/logstash-output-lumberjack-3.1.7/lib/logstash/outputs/lumberjack.rb:59:in `receive'", "/usr/share/logstash/logstash-core/lib/logstash/outputs/base.rb:105:in `block in multi_receive'", "org/jruby/RubyArray.java:1809:in `each'", "/usr/share/logstash/logstash-core/lib/logstash/outputs/base.rb:105:in `multi_receive'", "org/logstash/config/ir/compiler/OutputStrategyExt.java:143:in `multi_receive'", "org/logstash/config/ir/compiler/AbstractOutputDelegatorExt.java:121:in `multi_receive'", "/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:295:in `block in start_workers'"]} ~~~~~~~~~~~~~~~~~~~~~~~~~~~ ` ``` ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [January 11, 2021, 12:17am UTC](https://discuss.elastic.co/t/client-write-error-trying-connect-e-ioerror-connection-reset-by-peer/260571/2 "2021-01-11T00:17:15Z")
Is there a firewall in between any of your network connections? ---
**Author:** ![PraveenKT](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/praveenkt/32/35483_2.png) [@PraveenKT](https://discuss.elastic.co/u/PraveenKT)\ **Post date:** [January 11, 2021, 4:53pm UTC](https://discuss.elastic.co/t/client-write-error-trying-connect-e-ioerror-connection-reset-by-peer/260571/3 "2021-01-11T16:53:24Z")
yes firewalls are there. But after restarting Logstash it works for few hours. after that we are getting above logs and not seeing data in dashboards. ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [January 11, 2021, 9:08pm UTC](https://discuss.elastic.co/t/client-write-error-trying-connect-e-ioerror-connection-reset-by-peer/260571/4 "2021-01-11T21:08:47Z")
Connection reset by peer could indicate the firewall isn't allowing long lived connections. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [February 8, 2021, 9:08pm UTC](https://discuss.elastic.co/t/client-write-error-trying-connect-e-ioerror-connection-reset-by-peer/260571/5 "2021-02-08T21:08:50Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.