Write failed: Broken pipe --------- Issue.

while we try to  ssh from one server to another and we receive above error.

newcqa@cde-app-xx.abc.com:/x01/newcqa23>ssh tomcat@172.25.72.168
Write failed: Broken pipe


first we check with the original server and there is no issue with that, and we switch to the second one..


then we find that we can't switch to the user on the 2nd server. 

 [root@exp-tomcat ~]# su - tomcat
su: cannot set user id: Resource temporarily unavailable


issue with resource limit exceed for tomcat user in the server. 

them we increased the resource limit. 


vi /etc/security/limits.conf

add below entry..
 
tomcat          soft     nproc          2047
tomcat          hard     nproc          16384
tomcat          soft     nofile         1024
tomcat          hard     nofile         65536

Then issue resolved.