# Network Speed between ES nodes **URL:** \ **Category:** Elasticsearch\ **Created:** [June 28, 2013, 8:36am UTC](https://discuss.elastic.co/t/network-speed-between-es-nodes/12576 "2013-06-28T08:36:45Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Antonios\_Giannopoulo](https://avatars.discourse-cdn.com/v4/letter/a/9fc348/32.png) [@Antonios\_Giannopoulo](https://discuss.elastic.co/u/Antonios_Giannopoulo)\ **Post date:** [June 28, 2013, 8:36am UTC](https://discuss.elastic.co/t/network-speed-between-es-nodes/12576/1 "2013-06-28T08:36:45Z")
Hi, I have setup a five node cluster (5 shards 1 replica) for evaluation. I have notice that during a shard relocation or during a cluster rebalance a node can achieve a maximum speed of 160 Mbp/s. The issue is that the nodes are communicate through Gigabit Ethernet and for scp operations i can achieve 560 Mbp/s which is the expected. I haven't limit the bandwidth from the configuration. Does anyone has any idea why this might happen? Thank you, Antonis -- 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). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\ **Post date:** [June 28, 2013, 10:02am UTC](https://discuss.elastic.co/t/network-speed-between-es-nodes/12576/2 "2013-06-28T10:02:49Z")
Hey, judging from a quick peek in the source, I think you have to set indices.recovery.max\_bytes\_per\_sec settings to something more than the default, which is 20 MB/s (perfectly matching your 160 MBit/s). --Alex On Fri, Jun 28, 2013 at 10:36 AM, Antonios Giannopoulos [antgiann@gmail.com](mailto:antgiann@gmail.com)wrote: > Hi, > I have setup a five node cluster (5 shards 1 replica) for evaluation. I > have notice that during a shard relocation or during a cluster rebalance a > node can achieve a maximum speed of 160 Mbp/s. > The issue is that the nodes are communicate through Gigabit Ethernet and > for scp operations i can achieve 560 Mbp/s which is the expected. I haven't > limit the bandwidth from the configuration. > Does anyone has any idea why this might happen? > > Thank you, > Antonis > > -- > 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). > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- 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). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**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, 2:29am UTC](https://discuss.elastic.co/t/network-speed-between-es-nodes/12576/3 "2017-07-06T02:29:02Z")