# What does the arrow mean in this netty layer exception **URL:** \ **Category:** Elasticsearch\ **Created:** [April 10, 2015, 2:46am UTC](https://discuss.elastic.co/t/what-does-the-arrow-mean-in-this-netty-layer-exception/23180 "2015-04-10T02:46:47Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![John\_Yeuk\_Hon\_Wong](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/john_yeuk_hon_wong/32/493_2.png) [@John\_Yeuk\_Hon\_Wong](https://discuss.elastic.co/u/John_Yeuk_Hon_Wong)\ **Post date:** [April 10, 2015, 2:46am UTC](https://discuss.elastic.co/t/what-does-the-arrow-mean-in-this-netty-layer-exception/23180/1 "2015-04-10T02:46:47Z")
Hi I see this on one of the nodes (on 214) [2015-04-07 16:28:02,550][WARN][transport.netty] [Reyes, Cecelia] exception caught on netty layer [[id: 0x03d14f1c, /10.240.6.214:36055 =\> / 10.240.6.215:9300]] java.lang.OutOfMemoryError: Java heap space Well, so 214 was OOM,, am I right? But what does the arrow mean? Thanks. -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/6980bba2-5b1f-40ce-9198-cba88cf2bf1a%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/6980bba2-5b1f-40ce-9198-cba88cf2bf1a%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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, 12:20am UTC](https://discuss.elastic.co/t/what-does-the-arrow-mean-in-this-netty-layer-exception/23180/2 "2017-07-06T00:20:31Z")
Closed on July 6, 2017, 12:20am UTC