Solace Process level information and internal architecture

rdesoju

Hi,
I would like to understand more about the internal services that ensemble Solace PubSub s/w. I found that below processes are running as child processes of SolaceDaemon process:

1000001  24106 24081  0 Feb29 pts/0    00:00:00 /usr/sw/loads/soltr_9.3.1.9/bin/solacedaemon --vmr -z -f /usr/sw/loads/soltr_9.3.1.9/SolaceStartup.txt -r -1
1000001  24602 24106  0 Feb29 pts/0    00:42:40 python /usr/sw/loads/soltr_9.3.1.9/scripts/vmr-solaudit -d
1000001  24613 24106  0 Feb29 pts/0    00:00:07 /sbin/rsyslogd -n
1000001  24653 24106  0 Feb29 pts/0    00:00:33 /usr/sw/loads/soltr_9.3.1.9/bin/watchdog -w 0 -R 900
1000001  24654 24106 17 Feb29 pts/0    16:11:38 /usr/sw/loads/soltr_9.3.1.9/bin/dataplane -h 80
1000001  24655 24106  0 Feb29 pts/0    00:06:29 /usr/sw/loads/soltr_9.3.1.9/bin/controlplane -h 80
1000001  24656 24106  0 Feb29 pts/0    00:00:14 /usr/sw/loads/soltr_9.3.1.9/bin/smrp
1000001  24657 24106  0 Feb29 pts/0    00:09:27 /usr/sw/loads/soltr_9.3.1.9/bin/mgmtplane
1000001  24658 24106  0 Feb29 pts/0    00:00:14 /usr/sw/loads/soltr_9.3.1.9/bin/xmlmanager
1000001  24659 24106  0 Feb29 pts/0    00:00:15 /usr/sw/loads/soltr_9.3.1.9/bin/trmmanager
1000001  24660 24106  0 Feb29 pts/0    00:01:57 /usr/sw/loads/soltr_9.3.1.9/bin/msgbusadapter
1000001  24661 24106  0 Feb29 pts/0    00:00:26 /usr/sw/loads/soltr_9.3.1.9/bin/solcachemgr
1000001  24795 24106 10 Feb29 pts/0    09:28:49 /usr/sw/loads/soltr_9.3.1.9/firmware/3206/dataplane-linux
1000001  24866 24106  0 Feb29 pts/0    00:00:08 uwsgi --ini loads/soltr_9.3.1.9/scripts/sempv2/uwsgi.ini --set sempV1Port=1025
1000001  24867 24106  0 Feb29 pts/0    00:00:00 nginx: master process nginx -c /usr/sw/loads/soltr_9.3.1.9/tmp/nginx.conf
root     24886 24106  0 Feb29 pts/0    00:00:00 /usr/sbin/sshd -D
1000001  24895 24106  0 Feb29 pts/0    00:41:33 /usr/bin/consul agent -config-file /var/lib/solace/consul.json

I think dataplane process is the main processes which is required to exchange messages.
Consul process is responsible for communicating with peers in the HA triplet.
Could someone help to gain more understanding about role of other listed services here? Any pointers in the documentation also would be really helpful. I am essentially trying to understand all the internal components and services in the Solace PubSub software. I tried searching in the docs but unable to find relevant detailed explanation of internal architecture.

Please help.

Thanks in advance.

Regards,
Raghu

rdesoju

solacedaemon is the main process which contains others as child processes
controlplane manages the redundancy. Talks to consul and watchdog
dataplane talks to peer messaging nodes on 8741 and syncs message spools. Also, has says hello to the peers
dataplane-linux acts as frontcontroller for messaging protocols
mgmtplane is responsible for config-sync between peers in a ha triplet
msgbusadapter takes care of messaging processing. Serves clients
smrp role is to propogate subscriptions to other nodes in case of MNR
solacecachemanager takes care of message caching
sshd is for CLI
nginx hosts UI for solAdmin
uwsgi is the REST service API for SEMP v2
vmr-solaudit??
trmmanager??
xmlmanager??

Could someone please validate my understanding, correct and also shed some light on role of these components?

Thanks

pkondrat

Hi Raghu,
I'm a product manager at Solace. The answers to these questions are getting into implementation details that we don't normally disclose.
Best Regards,
Paul