We have already configured HA for RESOURCEMANAGER in Hadoop. It is working fine. . We have included the following ---config in knox topology(topology1) to support HA .
------------
<role>ha</role>
<name>HaProvider</name>
<enabled>true</enabled>
<param>
<name>WEBHDFS</name>
<value>maxFailoverAttempts=3;failoverSleep=1000;maxRetryAttempts=300;retrySleep=3000;enabled=true</value>
</param>
<param>
<name>RESOURCEMANAGER</name>
<value>maxFailoverAttempts=3;failoverSleep=1000;maxRetryAttempts=300;retrySleep=3000;enabled=true</value>
</param>
----------
-------
<service>
<role>RESOURCEMANAGER</role>
<url>http://rmhost1:8088/ws</url>
<url>http://rmhost2::8088/ws</url>
</service>
-------
The below command is working fine when the rmhost1 is active resourcemanager.
curl -ivk -u narasik "http://knoxhost:8443/knox/topology1/resourcemanager/v1/cluster"
But it is failing when the rmhost2 is active resoucemanger.
The error details are as below.
==========================
Enter host password for user 'narasik':
* About to connect() to knoxhost port 8443 (#0)
* Trying 53.20.25.82... connected
*Connected to knoxhost port 8443 (#0)
* Server auth using Basic with user 'narasik'
> GET /knox/topology1/resourcemanager/v1/cluster HTTP/1.1
> Authorization: Basic ZWVkY19hX25hcmFzaWs6S2FuYXB1cmFAMDYwNDE5Nzc=
> User-Agent: curl/7.19.7 (x86_64-suse-linux-gnu) libcurl/7.19.7 OpenSSL/0.9.8j zlib/1.2.7 libidn/1.10
> Host: knoxhost:8443
> Accept: */*
>
< HTTP/1.1 307 Temporary Redirect
HTTP/1.1 307 Temporary Redirect
< Date: Tue, 13 Mar 2018 11:24:42 GMT
Date: Tue, 13 Mar 2018 11:24:42 GMT
< Set-Cookie: JSESSIONID=1iup958ngi2i01ift6v8d6sbst;Path=/knox/topology;Secure;HttpOnly
Set-Cookie: JSESSIONID=1iup958ngi2i01ift6v8d6sbst;Path=/knox/topology1;Secure;HttpOnly
< Expires: Thu, 01 Jan 1970 00:00:00 GMT
Expires: Thu, 01 Jan 1970 00:00:00 GMT
< Set-Cookie: rememberMe=deleteMe; Path=/knox/topology1; Max-Age=0; Expires=Mon, 12-Mar-2018 11:24:42 GMT
Set-Cookie: rememberMe=deleteMe; Path=/knox/topology1; Max-Age=0; Expires=Mon, 12-Mar-2018 11:24:42 GMT
< Cache-Control: no-cache
Cache-Control: no-cache
< Expires: Tue, 13 Mar 2018 11:24:42 GMT
Expires: Tue, 13 Mar 2018 11:24:42 GMT
< Date: Tue, 13 Mar 2018 11:24:42 GMT
Date: Tue, 13 Mar 2018 11:24:42 GMT
< Pragma: no-cache
Pragma: no-cache
< Expires: Tue, 13 Mar 2018 11:24:42 GMT
Expires: Tue, 13 Mar 2018 11:24:42 GMT
< Date: Tue, 13 Mar 2018 11:24:42 GMT
Date: Tue, 13 Mar 2018 11:24:42 GMT
< Pragma: no-cache
Pragma: no-cache
< Content-Type: text/plain; charset=UTF-8
Content-Type: text/plain; charset=UTF-8
< X-Frame-Options: SAMEORIGIN
X-Frame-Options: SAMEORIGIN
< Location: http://rmhost2:8088/ws/v1/cluster/?doAs=narasik
Location: http://rmhost2:8088/ws/v1/cluster/?doAs=narasik
< Server: Jetty(6.1.26.hwx)
Server: Jetty(6.1.26.hwx)
< Content-Length: 77
Content-Length: 77
<
This is standby RM. The redirect url is: /ws/v1/cluster/?doAs=narasik
* Connection #0 to host knox host left intact
* Closing connection #0
==========================
