# Must I restart the cluster when a new node is added, in a cloud compute environment?
**URL:** https://discuss.elastic.co/t/must-i-restart-the-cluster-when-a-new-node-is-added-in-a-cloud-compute-environment/18688
**Category:** Elasticsearch
**Created:** [July 16, 2014, 5:18am UTC](https://discuss.elastic.co/t/must-i-restart-the-cluster-when-a-new-node-is-added-in-a-cloud-compute-environment/18688 "2014-07-16T05:18:48Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@11158](https://discuss.elastic.co/u/11158)
#### Post date: [July 16, 2014, 5:18am UTC](https://discuss.elastic.co/t/must-i-restart-the-cluster-when-a-new-node-is-added-in-a-cloud-compute-environment/18688/1 "2014-07-16T05:18:48Z")
Hi everyone!
I have two problems that confuse me, I have already searched with google,
and dived into the doc of this project, but I can't find proper explains
for them, I need help!
1. I use www._aliyun_.com cloud compute virtual machine build a
elasticsearch cluster, and I already know that add a now node(in real
server environment) that could auto join in a exist cluster which hold the
same cluster name.
But in my work environment(I use virtual machine and use default "zen
discovery"), I must restart the cluster when I add a new node in this
cluster. Is this necessary?
I have noticed that there are exclusive plugins for google, es2, azure
cloud compute, is cloud compute different real machine? If it is, what
different between them?
1. Is there any backup or snapshot mechanism in elasticsearch, because
every midnight (from 2:00-6:00), the performance became lower than daytime
and more likely occur error such as below, should I limit "bulk" operation
in this range of time?
If you know the answer, please explain it for me, Thank you!
by magigo
the error message!
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
No handlers could be found for logger "elasticsearch"
Exception in thread C\_Threading:
Traceback (most recent call last):
File "/usr/lib/python2.7/threading.py", line 551, in \_\_bootstrap\_inner
self.run()
File "es\_indexing\_3.py", line 87, in run
res = helpers.bulk(self.es, actions, chunk\_size=size)
File
"/usr/local/lib/python2.7/dist-packages/elasticsearch/helpers/ **init**.py",
line 145, in bulk
for ok, item in streaming\_bulk(client, actions, \*\*kwargs):
File
"/usr/local/lib/python2.7/dist-packages/elasticsearch/helpers/ **init**.py",
line 104, in streaming\_bulk
resp = client.bulk(bulk\_actions, \*\*kwargs)
File
"/usr/local/lib/python2.7/dist-packages/elasticsearch/client/utils.py",
line 67, in \_wrapped
return func(\*args, params=params, \*\*kwargs)
File
"/usr/local/lib/python2.7/dist-packages/elasticsearch/client/ **init**.py",
line 646, in bulk
params=params, body=self.\_bulk\_body(body))
File "/usr/local/lib/python2.7/dist-packages/elasticsearch/transport.py",
line 276, in perform\_request
status, headers, data = connection.perform\_request(method, url, params,
body, ignore=ignore, timeout=timeout)
File
"/usr/local/lib/python2.7/dist-packages/elasticsearch/connection/http\_urllib3.py",
line 51, in perform\_request
raise ConnectionError('N/A', str(e), e)
ConnectionError: ConnectionError(HTTPConnectionPool(host='10.161.165.194',
port=9200): Read timed out. (read timeout=10)) caused by:
ReadTimeoutError(HTTPConnectionPool(host='10.161.165.194'$
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---
### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [July 16, 2014, 6:50am UTC](https://discuss.elastic.co/t/must-i-restart-the-cluster-when-a-new-node-is-added-in-a-cloud-compute-environment/18688/2 "2014-07-16T06:50:53Z")
I think that you should use unicast instead of multicast.
I never looked at aliyun. Is it compatible to AWS EC2 api? If so, you could use aws cloud plugin.
--
David 😉
Twitter : @dadoonet / @elasticsearchfr / @scrutmydocs
Le 16 juil. 2014 à 07:18, 纪路 [magievanerv@gmail.com](mailto:magievanerv@gmail.com) a écrit :
Hi everyone!
I have two problems that confuse me, I have already searched with google, and dived into the doc of this project, but I can't find proper explains for them, I need help!
1. I use [www.aliyun.com](http://www.aliyun.com) cloud compute virtual machine build a elasticsearch cluster, and I already know that add a now node(in real server environment) that could auto join in a exist cluster which hold the same cluster name.
But in my work environment(I use virtual machine and use default "zen discovery"), I must restart the cluster when I add a new node in this cluster. Is this necessary?
I have noticed that there are exclusive plugins for google, es2, azure cloud compute, is cloud compute different real machine? If it is, what different between them?
1. Is there any backup or snapshot mechanism in elasticsearch, because every midnight (from 2:00-6:00), the performance became lower than daytime and more likely occur error such as below, should I limit "bulk" operation in this range of time?
If you know the answer, please explain it for me, Thank you!
by magigo
the error message!
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
## No handlers could be found for logger "elasticsearch" Exception in thread C\_Threading: Traceback (most recent call last): File "/usr/lib/python2.7/threading.py", line 551, in \_\_bootstrap\_inner self.run() File "es\_indexing\_3.py", line 87, in run res = helpers.bulk(self.es, actions, chunk\_size=size) File "/usr/local/lib/python2.7/dist-packages/elasticsearch/helpers/ **init**.py", line 145, in bulk for ok, item in streaming\_bulk(client, actions, \*\*kwargs): File "/usr/local/lib/python2.7/dist-packages/elasticsearch/helpers/ **init**.py", line 104, in streaming\_bulk resp = client.bulk(bulk\_actions, \*\*kwargs) File "/usr/local/lib/python2.7/dist-packages/elasticsearch/client/utils.py", line 67, in \_wrapped return func(\*args, params=params, \*\*kwargs) File "/usr/local/lib/python2.7/dist-packages/elasticsearch/client/ **init**.py", line 646, in bulk params=params, body=self.\_bulk\_body(body)) File "/usr/local/lib/python2.7/dist-packages/elasticsearch/transport.py", line 276, in perform\_request status, headers, data = connection.perform\_request(method, url, params, body, ignore=ignore, timeout=timeout) File "/usr/local/lib/python2.7/dist-packages/elasticsearch/connection/http\_urllib3.py", line 51, in perform\_request raise ConnectionError('N/A', str(e), e) ConnectionError: ConnectionError(HTTPConnectionPool(host='10.161.165.194', port=9200): Read timed out. (read timeout=10)) caused by: ReadTimeoutError(HTTPConnectionPool(host='10.161.165.194'$
You received this message because you are subscribed to the Google Groups "elasticsearch" group.
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For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout).
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 1:15am UTC](https://discuss.elastic.co/t/must-i-restart-the-cluster-when-a-new-node-is-added-in-a-cloud-compute-environment/18688/3 "2017-07-06T01:15:34Z")