# Is external Load Balance useful? **URL:** \ **Category:** Elasticsearch\ **Created:** [April 29, 2015, 7:12am UTC](https://discuss.elastic.co/t/is-external-load-balance-useful/23460 "2015-04-29T07:12:11Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Youxu](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/youxu/32/117375_2.png) [@Youxu](https://discuss.elastic.co/u/Youxu)\ **Post date:** [April 29, 2015, 7:12am UTC](https://discuss.elastic.co/t/is-external-load-balance-useful/23460/1 "2015-04-29T07:12:11Z")
Hi, I am building Elasticsearch on Microsoft Azure Virtual machines. With Azure VM, I could build Load Balance on top of all my VMs so that I can wrap all VMs into one single endpoint exposed for query. Now my question is, is such external load balance really useful for query or index performance? Since for each query, any node who receive the request will forward the query request to all shards which loaded on other VMs, so seems I can simply always send request to one node VM. -- 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/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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:** [April 29, 2015, 7:27am UTC](https://discuss.elastic.co/t/is-external-load-balance-useful/23460/2 "2015-04-29T07:27:14Z")
It'd help if you had client nodes. But it also helps if you don't, even though ES does connect to the nodes with the shards it needs, distributing the initial query load across multiple nodes means that you don't have a single node that has to deal with all the indexing and querying results from the end users/clients. On 29 April 2015 at 17:12, Xudong You [xudong.you@gmail.com](mailto:xudong.you@gmail.com) wrote: > Hi, > I am building Elasticsearch on Microsoft Azure Virtual machines. With > Azure VM, I could build Load Balance on top of all my VMs so that I can > wrap all VMs into one single endpoint exposed for query. > Now my question is, is such external load balance really useful for query > or index performance? Since for each query, any node who receive the > request will forward the query request to all shards which loaded on other > VMs, so seems I can simply always send request to one node VM. > > -- > 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/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- 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/CAEYi1X-cg8v\_CRwbscxavg-N6ko%3D\_MxgLbQp7S4Fqf5nKED4ww%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X-cg8v_CRwbscxavg-N6ko%3D_MxgLbQp7S4Fqf5nKED4ww%40mail.gmail.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![Youxu](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/youxu/32/117375_2.png) [@Youxu](https://discuss.elastic.co/u/Youxu)\ **Post date:** [April 29, 2015, 9:06am UTC](https://discuss.elastic.co/t/is-external-load-balance-useful/23460/3 "2015-04-29T09:06:37Z")
thanks your reply. what do you mean by "client nodes"? Do you mean the "NO master and No data” nodes just work as load balancer? On Wednesday, April 29, 2015 at 3:27:42 PM UTC+8, Mark Walkom wrote: > It'd help if you had client nodes. > But it also helps if you don't, even though ES does connect to the nodes > with the shards it needs, distributing the initial query load across > multiple nodes means that you don't have a single node that has to deal > with all the indexing and querying results from the end users/clients. > > On 29 April 2015 at 17:12, Xudong You \<[xudon...@gmail.com](mailto:xudon...@gmail.com) \\> > wrote: > > > Hi, > > I am building Elasticsearch on Microsoft Azure Virtual machines. With > > Azure VM, I could build Load Balance on top of all my VMs so that I can > > wrap all VMs into one single endpoint exposed for query. > > Now my question is, is such external load balance really useful for query > > or index performance? Since for each query, any node who receive the > > request will forward the query request to all shards which loaded on other > > VMs, so seems I can simply always send request to one node VM. > > > > -- > > 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 [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \. > > To view this discussion on the web visit > > [https://groups.google.com/d/msgid/elasticsearch/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com) > > [https://groups.google.com/d/msgid/elasticsearch/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com?utm_medium=email&utm_source=footer) > > . > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- 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/8eab439a-46df-4601-92aa-5f0b0b053010%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/8eab439a-46df-4601-92aa-5f0b0b053010%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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:** [April 29, 2015, 9:32am UTC](https://discuss.elastic.co/t/is-external-load-balance-useful/23460/4 "2015-04-29T09:32:30Z")
That is correct. You can then put a load balancer in front of them. On 29 April 2015 at 19:06, Xudong You [xudong.you@gmail.com](mailto:xudong.you@gmail.com) wrote: > thanks your reply. > what do you mean by "client nodes"? Do you mean the "NO master and No > data” nodes just work as load balancer? > > On Wednesday, April 29, 2015 at 3:27:42 PM UTC+8, Mark Walkom wrote: > > > It'd help if you had client nodes. > > But it also helps if you don't, even though ES does connect to the nodes > > with the shards it needs, distributing the initial query load across > > multiple nodes means that you don't have a single node that has to deal > > with all the indexing and querying results from the end users/clients. > > > > On 29 April 2015 at 17:12, Xudong You [xudon...@gmail.com](mailto:xudon...@gmail.com) wrote: > > > > > Hi, > > > I am building Elasticsearch on Microsoft Azure Virtual machines. With > > > Azure VM, I could build Load Balance on top of all my VMs so that I can > > > wrap all VMs into one single endpoint exposed for query. > > > Now my question is, is such external load balance really useful for > > > query or index performance? Since for each query, any node who receive the > > > request will forward the query request to all shards which loaded on other > > > VMs, so seems I can simply always send request to one node VM. > > > > > > -- > > > 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 [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com). > > > To view this discussion on the web visit > > > [https://groups.google.com/d/msgid/elasticsearch/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com) > > > [https://groups.google.com/d/msgid/elasticsearch/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/3f330be7-1558-4158-9728-19655d7e790c%40googlegroups.com?utm_medium=email&utm_source=footer) > > > . > > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). > > > > -- > > 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/8eab439a-46df-4601-92aa-5f0b0b053010%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/8eab439a-46df-4601-92aa-5f0b0b053010%40googlegroups.com) > > [https://groups.google.com/d/msgid/elasticsearch/8eab439a-46df-4601-92aa-5f0b0b053010%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/8eab439a-46df-4601-92aa-5f0b0b053010%40googlegroups.com?utm_medium=email&utm_source=footer) > > . > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- 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/CAEYi1X9kNhF%3DwUhrAEco8A%3DD3\_UOMpPnVDVggkPkciBxN\_SY6Q%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAEYi1X9kNhF%3DwUhrAEco8A%3DD3_UOMpPnVDVggkPkciBxN_SY6Q%40mail.gmail.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, 12:17am UTC](https://discuss.elastic.co/t/is-external-load-balance-useful/23460/5 "2017-07-06T00:17:08Z")