Forum Discussion
CHATEL_Eric_195
Nimbostratus
NimbostratusMonitor ElasticSearch node
Hi,
I try to create a new monitor which be able to check availability of each node by searching
"status" : 200This, is an output of curl -v 10.10.10.20:9200
* About to connect() to 10.10.10.20 port 9200 (0)
* Trying 10.10.10.20... connected
* Connected to 10.10.10.20 (10.10.10.20) port 9200 (0)
> GET / HTTP/1.1
> User-Agent: curl/7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 OpenSSL/0.9.8y zlib/1.2.3 libidn/0.6.5
> Host: 10.10.10.20:9200
> Accept: */*
>
< HTTP/1.1 200 OK
< Content-Type: application/json; charset=UTF-8
< Content-Length: 334
<
{
"status" : 200,
"name" : "Bounty",
"cluster_name" : "elas-prod",
"version" : {
"number" : "1.6.2",
"build_hash" : "622039121e53e5f520b5ff8720fdbd3d0cb5326b",
"build_timestamp" : "2015-07-29T09:24:47Z",
"build_snapshot" : false,
"lucene_version" : "4.10.4"
},
"tagline" : "You Know, for Search"
}
* Connection 0 to host 10.10.10.20 left intact
* Closing connection 0
So, with this Send String, monitor doesn't work
GET / HTTP/1.1\r\nUser-Agent:\r\nHost:\r\nAccept: */*\r\nConnection: close\r\n
What i've missed please ?
Thanks a lot, Best regards
Jérôme
3 Replies
Hi Jerome!
You can test your monitor with
echo -ne "GET / HTTP/1.1\r\nUser-Agent:\r\nHost:\r\nAccept: */*\r\nConnection: close\r\n" | nc [IP] [Port]In your case I'd add an extra \r\n in the end:
GET / HTTP/1.1\r\nUser-Agent:\r\nHost:\r\nAccept: */*\r\nConnection: close\r\n\r\nThat should do the trick!
/Patrik
CHATEL_Eric_195Great ! It's now working, you're the best thanks a lot.
At first test with only one \r\n , no data was return but with another \r\n i've got status page like with curl.
- boneyard
MVP
the second \r\n is indeed required according to the HTTP specification, the empty line signals the end of the request.
