# Transport client? **URL:** \ **Category:** Elasticsearch\ **Created:** [February 14, 2017, 9:14am UTC](https://discuss.elastic.co/t/transport-client/75000 "2017-02-14T09:14:32Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![pierB](https://avatars.discourse-cdn.com/v4/letter/p/5fc32e/32.png) [@pierB](https://discuss.elastic.co/u/pierB)\ **Post date:** [February 14, 2017, 9:14am UTC](https://discuss.elastic.co/t/transport-client/75000/1 "2017-02-14T09:14:32Z")
Hi, ES newbie here so please bear with my noob question. I set a graylog stack, using ES / mongo /graylog server suite, I am using ES2.4 as this is the latest version supported by graylog-server. After setting up my ES node (I only have one node on the the very same server that holds graylog and mongo), I can see the following : > { > "cluster\_name" : "log\_server\_graylog", > "nodes" : { > "flyaLaEiSa-W2EZ3b3K41w" : { > "timestamp" : 1487063374759, > "name" : "log", > "transport\_address" : "127.0.0.1:9300", > "host" : "127.0.0.1", > "ip" : ["127.0.0.1:9300", "NONE"], > "process" : { > "timestamp" : 1487063374759, > "open\_file\_descriptors" : 577, > "max\_file\_descriptors" : 65536, > "cpu" : { > "percent" : 0, > "total\_in\_millis" : 977580 > }, > "mem" : { > "total\_virtual\_in\_bytes" : 48561156096 > } > } > }, > "1Ee5IXtRTLC6nyCgloOaug" : { > "timestamp" : 1487063374760, > "name" : "graylog-27274b66-3bbd-4975-99ee-1ee3d692c522", > "transport\_address" : "127.0.0.1:9350", > "host" : "127.0.0.1", > "ip" : ["127.0.0.1:9350", "NONE"], > "attributes" : { > "client" : "true", > "data" : "false", > "master" : "false" > }, > "process" : { > "timestamp" : 1487063374760, > "open\_file\_descriptors" : 519, > "max\_file\_descriptors" : 64000, > "cpu" : { > "percent" : 0, > "total\_in\_millis" : 1001200 > }, > "mem" : { > "total\_virtual\_in\_bytes" : 15875788800 > } > } > } > } > } I was kind of surprised to see that there are 2 nodes as I am did not set anything like that, someone on the ES irc told me that it may be because of using a transport client which appears as a second node. But I did not setup anything like that. Do you confirm that my second node actually is a transport client ? Is it some kind of problem ? If yes how can I set up my ES server in order to see only one node ? Again, I am a ES newbie, I did some research about transport client but I could not understand where this second comes from... Here my very simple config file : > cluster.name: log\_server\_graylog > node.name: ${HOSTNAME} > path.data: /elq/elasticsearch/data > path.logs: /elq/elasticsearch/log > bootstrap.memory\_lock: true > network.host: 127.0.0.1 > action.destructive\_requires\_name: true Thanks for your enlighment 🙂 ---
**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:** [February 14, 2017, 9:31am UTC](https://discuss.elastic.co/t/transport-client/75000/2 "2017-02-14T09:31:33Z")
What does `_cat/nodes` show? ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [February 14, 2017, 9:34am UTC](https://discuss.elastic.co/t/transport-client/75000/3 "2017-02-14T09:34:23Z")
Based on the configuration, it looks like Graylog sets up one master/data node and an additional client node. Clients using the transport protocol do not join the cluster as nodes. ---
**Author:** ![pierB](https://avatars.discourse-cdn.com/v4/letter/p/5fc32e/32.png) [@pierB](https://discuss.elastic.co/u/pierB)\ **Post date:** [February 14, 2017, 9:45am UTC](https://discuss.elastic.co/t/transport-client/75000/4 "2017-02-14T09:45:27Z")
Hi Christian\_Dahlqvist, Thanks for your answer although I dot not understand it fully (this is an understatement!) : " Clients using the transport protocol do not join the cluster as nodes" Is this a problem or not ? I understand this is caused by the graylog client, so I guess this is a normal behaviour, but from the ES point of view is this problematic ? Thanks again for your time ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [February 14, 2017, 9:47am UTC](https://discuss.elastic.co/t/transport-client/75000/5 "2017-02-14T09:47:55Z")
You appear to have two nodes, so what you are seeing is normal. I don't think a client node is really needed for a cluster this size, but even though the client node may not be required, it should not be problematic. ---
**Author:** ![pierB](https://avatars.discourse-cdn.com/v4/letter/p/5fc32e/32.png) [@pierB](https://discuss.elastic.co/u/pierB)\ **Post date:** [February 14, 2017, 9:57am UTC](https://discuss.elastic.co/t/transport-client/75000/6 "2017-02-14T09:57:32Z")
OK, good to hear that 🙂 So I am keeping the config as is. When you're saying : " I don't think a client node is really needed for a cluster this size" do you mean the data set size ? Because it is going to increase a lot more in the future (I am now sending only syslog to ES, but soon the very verbose Home app is giong to be sent over there...) Does a client node is more accurate for large data set ? Thanks again... ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [February 14, 2017, 10:44am UTC](https://discuss.elastic.co/t/transport-client/75000/7 "2017-02-14T10:44:54Z")
I do not know Graylog, so do not know why they apparently are using a client node. For small clusters dedicated client nodes are generally not required. ---
**Author:** ![pierB](https://avatars.discourse-cdn.com/v4/letter/p/5fc32e/32.png) [@pierB](https://discuss.elastic.co/u/pierB)\ **Post date:** [February 14, 2017, 10:46am UTC](https://discuss.elastic.co/t/transport-client/75000/8 "2017-02-14T10:46:21Z")
OK, thanks I'll ask @graylog for more info regarding this question. You've been very helpful and quick to response, thank you for that. Pier ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [March 14, 2017, 10:46am UTC](https://discuss.elastic.co/t/transport-client/75000/9 "2017-03-14T10:46:41Z")
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