Standalone installation fails at the worker stage

Install, Configure and Update
1

Hello,

I just tried installing a standalone cryoSPARC v3.3.2 on a new workstation running Rocky 8.6. The cryosparc_master installed fine, but then the installation failed at the cryosparc_worker stage. Here is the error message I got:

************ CRYOSPARC SYSTEM: STANDALONE INSTALLER **************

  The installer will now download, install and connect the worker
  package on this machine. The worker package will allow cryoSPARC
  to run compute jobs.

******************************************************************

 Starting cryoSPARC...

Starting cryoSPARC System master process..
CryoSPARC is not already running.
database: started
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/opt/cryosparc/cryosparc_master/deps/anaconda/envs/cryosparc_master_env/lib/python3.7/site-packages/pymongo/mongo_client.py", line 1915, in list_database_names
    for doc in self.list_databases(session, nameOnly=True)]
  File "/opt/cryosparc/cryosparc_master/deps/anaconda/envs/cryosparc_master_env/lib/python3.7/site-packages/pymongo/mongo_client.py", line 1896, in list_databases
    res = admin._retryable_read_command(cmd, session=session)
  File "/opt/cryosparc/cryosparc_master/deps/anaconda/envs/cryosparc_master_env/lib/python3.7/site-packages/pymongo/database.py", line 756, in _retryable_read_command
    _cmd, read_preference, session)
  File "/opt/cryosparc/cryosparc_master/deps/anaconda/envs/cryosparc_master_env/lib/python3.7/site-packages/pymongo/mongo_client.py", line 1461, in _retryable_read
    read_pref, session, address=address)
  File "/opt/cryosparc/cryosparc_master/deps/anaconda/envs/cryosparc_master_env/lib/python3.7/site-packages/pymongo/mongo_client.py", line 1278, in _select_server
    server = topology.select_server(server_selector)
  File "/opt/cryosparc/cryosparc_master/deps/anaconda/envs/cryosparc_master_env/lib/python3.7/site-packages/pymongo/topology.py", line 243, in select_server
    address))
  File "/opt/cryosparc/cryosparc_master/deps/anaconda/envs/cryosparc_master_env/lib/python3.7/site-packages/pymongo/topology.py", line 200, in select_servers
    selector, server_timeout, address)
  File "/opt/cryosparc/cryosparc_master/deps/anaconda/envs/cryosparc_master_env/lib/python3.7/site-packages/pymongo/topology.py", line 217, in _select_servers_loop
    (self._error_message(selector), timeout, self.description))
pymongo.errors.ServerSelectionTimeoutError: localhost:39001: [Errno 111] Connection refused, Timeout: 20.0s, Topology Description: <TopologyDescription id: 62a0b590a5ac5196ba99eb5b, topology_type: Single, servers: [<ServerDescription ('localhost', 39001) server_type: Unknown, rtt: None, error=AutoReconnect('localhost:39001: [Errno 111] Connection refused')>]>

I made sure the port range 39000-39010/tcp is open before running the installer. I also tried with CUDA 11.2.0 (I had initially tried with CUDA 11.2.2, maybe this one is too new, since the documentation specifies a CUDA version <= 11.2), but got the same error.

I would appreciate any help with this.
Thank you in advance!

2

Also, just after this installation failure, this is what cryosparcm status reports (only the database is running):

----------------------------------------------------------------------------
CryoSPARC System master node installed at
/opt/cryosparc/cryosparc_master
Current cryoSPARC version: v3.3.2
----------------------------------------------------------------------------

CryoSPARC process status:

app                              STOPPED   Not started
app_dev                          STOPPED   Not started
command_core                     STOPPED   Not started
command_rtp                      STOPPED   Not started
command_vis                      STOPPED   Not started
database                         RUNNING   pid 92774, uptime 17:17:25
liveapp                          STOPPED   Not started
liveapp_dev                      STOPPED   Not started
webapp                           STOPPED   Not started
webapp_dev                       STOPPED   Not started

----------------------------------------------------------------------------
*** client.py: command (http://022-031-LNX.cbi.local:39002/api) did not reply within timeout of 300 seconds, attempt 1 of 3
*** client.py: command (http://022-031-LNX.cbi.local:39002/api) did not reply within timeout of 300 seconds, attempt 2 of 3
*** client.py: command (http://022-031-LNX.cbi.local:39002/api) did not reply within timeout of 300 seconds, attempt 3 of 3
An error ocurred while checking license status
Could not get license verification status. Are all CryoSPARC processes RUNNING?
3

Looks like I found the solution, even though I am not sure I understand the problem.

I had opened the ports on the public zone, because this is what worked at my previous workplace, using the following commands:

sudo firewall-cmd --zone=public --add-port 39000-39010/tcp --permanent
sudo firewall-cmd --reload

The network at my current workplace must be configured differently, because I now had to open these ports on the home zone for the installation to finally work (replace the zone name in the command above). I don’t understand this concept of zones, so I don’t understand the problem. But this seems like a correct solution.