question Re: cloudera-scm-server is dead and pid file exists in Archives of Support Questions (Read Only)

cloudera-scm-server is dead and pid file exists

FISHJJ — Fri, 16 Sep 2022 09:15:25 GMT

Hi everyone, i was tring to install cloudera manager following the tutorial "www.cloudera.com/content/cloudera/en/documentation/cloudera-manager/v4-8-2/Cloudera-Manager-Installation-Guide/cmig_install_path_A.html".

After installation, i was not able to open cloudera manager at "localhost:7180". I tried to restart the cloudera-scm-manager using the command "service cloudera-scm-server restart" howerev,, it stoped after a few seconds and gave the folllowing error message "cloudera-scm-server is dead and pid file exists"

I tried to check the log file of cloudera-scm-server but nothing seems wrong. Anybody have a solution for this problem? Thanks in advance.

Re: cloudera-scm-server is dead and pid file exists

bgooley — Tue, 16 Dec 2014 14:31:23 GMT

Hi,

First, since you are installing, you are probably using Cloudera Manager 5.2.1 (latest), so the documentation you want is here:

http://www.cloudera.com/content/cloudera/en/documentation/core/latest/topics/installation_installation.html

Since there is a .pid file, remove it first. Check the following and delete if it exists:

/var/run/cloudera-scm-server.pid

Next, if there is a problem starting, there are likely valuable clues in the logs. Check out /var/log/cloudera-scm-server/cloudera-scm-server.log

Perhaps tail -f while starting to see if there are any exceptions.

If the solution is not obvious, post the details and someone here can help.

Re: cloudera-scm-server is dead and pid file exists

FISHJJ — Mon, 22 Dec 2014 03:10:59 GMT

thank you so much for the advice. I faced quite a lot difficulties using ubuntu, so I reinstall red hat and following the path you gave me, the problem no longer exists. Thanks again

Re: cloudera-scm-server is dead and pid file exists

bbonev — Wed, 08 Jul 2015 17:53:26 GMT

Hi,

I've faced the same issue except the fact I am nott able to resolve it in any way. I hit the issue when I upgraded the ClouderaManager from 5.3.2 to latest (5.4.3).

I followed the procedure described at http://www.cloudera.com/content/cloudera/en/documentation/core/latest/topics/cm_ag_upgrade_cm5.html and

after the upgrade I am not able to start the cloudera-scm-server. It starts and when I check its status it says "cloudera-scm-server dead but pid

file exists". I remove "/var/run/cloudera-scm-server.pid" and try to start the server again and then it starts, and if I check the status

- "cloudera-scm-server dead but pid file exists".

I checked the cloudera-scm-server-db is running and I was able to connect with "psql -U scm -p 7432 -h localhost" and all the data is there. The

cloudera-scm-agent is also running without any issue. I cannot diagnose what's causing the issues since there's isnt't even a single log entry neither in

/var/log/cloudera-scm-server/cloudera-scm-server.out, nor in /var/log/cloudera-scm-server/cloudera-scm-server.log. I run tail -f for both of the files

and not a single line during server start.

I would be grateful if someone can help me since I am stuck in the middle of an upgrade.

Re: cloudera-scm-server is dead and pid file exists

bbonev — Thu, 09 Jul 2015 10:19:02 GMT

I solved the issue. The logs weren't showing because the SELinux is enabled - I don't know where's the relation between them. Once I enabled them I saw the reason for hte failure. In my previous attempts to run the server I have run it as root directly from a low level script (that doesn't set java memory correctly) and it failed it OutOfMemory. This caused creation of a *.hprof file owned by root. Then on the consecutive try to run the server it wasn't able to read the hprof file (again why the server need to read the heap dump?!) and that's why it was failing. The solution was to move/remove the *.hprof from /usr/share/cmf

Re: cloudera-scm-server is dead and pid file exists

Guru007 — Thu, 23 Jul 2015 04:31:40 GMT

If the above step doesn't fix your issue then the postgresql is not running to identitfy it try to run command

service postgresql restart

if above command fails then you have to check in /etc/hosts if loopback address is missing 127.0.0.1 localhost

Add line 127.0.0.1 localhost save it, then try starting the postgresql service

service postgresql start

Hope this will help

Guruveer

Re: cloudera-scm-server is dead and pid file exists

test1990 — Sun, 08 Nov 2015 08:25:25 GMT

Hi,
It just occure with me, I fixed it as belows;
1. rm /var/run/cloudera-scm-server.pid
2 service cloudera-scm-server-db stop
3 /etc/rc.d/init.d/postgresql restart ----------------> Fixed in this
or(/etc/init.d/postgresql restart in Ubuntu)
4. service cloudera-scm-server-db start
5. service cloudera-scm-server start..

the problem is postgresql is not running

from:http://grokbase.com/t/cloudera/scm-users/138wj3kf3t/cloudera-scm-server-dead-but-pid-file-exists

Re: cloudera-scm-server is dead and pid file exists

ChrisEns — Wed, 01 Feb 2017 23:59:18 GMT

Followed these very steps - and in our case, nothing at all wrong with localhost. But, in our case, postgresql refuses to start, claiming in the logs "cannot resolve localhost" which is BS. Can ping and can ssh localhost.

Re: cloudera-scm-server is dead and pid file exists

ChrisEns — Thu, 02 Feb 2017 00:02:26 GMT

LOG: could not translate host name "localhost", service "5432" to address: Name or service not know.

Re: cloudera-scm-server is dead and pid file exists

bgooley — Thu, 02 Feb 2017 00:40:24 GMT

@ChrisEns

I searched for that error in Google and there are quite a few hits for that exact error and a few different tips and solutions.

Usually the issue is due to a malformed /etc/hosts file. That would be a good place to check first... make sure you have at least:

127.0.0.1 localhost

and nothing else "odd"

Regards,

Ben

Re: cloudera-scm-server is dead and pid file exists

Chandrum — Thu, 18 May 2017 16:17:03 GMT

Thanks for reply..

i do also having same problem. but as you asvised i removed the file /var/run/cloudera-scm-server.pid

then i start the cloudera service and again same issue but that removed file automatically regenarated again.

[root@cdh1 ~]# service cloudera-scm-server start
Starting cloudera-scm-server: [ OK ]
[root@cdh1 ~]# service cloudera-scm-server status
cloudera-scm-server dead but pid file exists
[root@cdh1 ~]# rm /var/run/cloudera-scm-server.pid
rm: remove regular file `/var/run/cloudera-scm-server.pid'? y
[root@cdh1 ~]#

Re: cloudera-scm-server is dead and pid file exists

Maroof_Khan — Tue, 24 Apr 2018 16:59:47 GMT

Hi,

I fix this issue as ..

1) go to the /etc/cloudera-scm-agent/config.ini ---- file and then update the following parameters in this file according to your servers.

## It should not normally be necessary to modify these.
# Port that the CM agent should listen on.
listening_port=9000

# IP Address that the CM agent should listen on.
listening_ip=192.168.0.000 -------------------------------------------------------> need your server IP

# Hostname that the CM agent reports as its hostname. If unset, will be
# obtained in code through something like this:
#
# python -c 'import socket; \
# print socket.getfqdn(), \
# socket.gethostbyname(socket.getfqdn())'
#
listening_hostname=192.168.0.000 ------------------------------------------------> need your server Ip same as above

use_tls=1

save this setting in config.ini file and then

restart cloudera-scm-agent services as

service cloudera-scm-agent restart

your issue will resolved...

Regards,

Maroof khan Gandapur

Re: cloudera-scm-server is dead and pid file exists

Rhino — Wed, 24 Oct 2018 12:08:38 GMT

check for pid number by using

# ps-ef |grep cloudera-scm-server

# kill -20 <pid number>"

# service iptables stop

# service ip6tables stop

#service cloudera-scm-server restart

#service cloudera-scm-server status

if still it triggering same error

init 6

#service cloudera-scm-server restart

#service cloudera-scm-server status

contact me at amar.sql94@gmail.com

Re: cloudera-scm-server is dead and pid file exists

bhai — Fri, 02 Nov 2018 07:00:30 GMT

/var/run/cloudera-scm-server.pid

where we execute this command

Re: cloudera-scm-server is dead and pid file exists

bhai — Fri, 02 Nov 2018 07:02:00 GMT

after doing this step rm /var/run/cloudera-scm-server.pid what we do

Re: cloudera-scm-server is dead and pid file exists

bhai — Fri, 02 Nov 2018 07:03:55 GMT

/var/log/cloudera-scm-server/cloudera-scm-server.log while execututing this command access permission was denaid

Re: cloudera-scm-server is dead and pid file exists

Rhino — Fri, 02 Nov 2018 08:55:31 GMT

you has to do it with root user login

or else sudo user login

Re: cloudera-scm-server is dead and pid file exists

Rhino — Fri, 02 Nov 2018 08:56:33 GMT

go through with my post

Re: cloudera-scm-server is dead and pid file exists

Rhino — Fri, 02 Nov 2018 08:57:20 GMT

which is mentioned above 13th post