Re: [I] CS 4.22.0 cloudstack-sysvmadm Script hungs after the first 10 VR updated, No error logs [cloudstack]

["abh1sar (via GitHub)" <gi...@apache.org>]

abh1sar commented on issue #12067:
URL: https://github.com/apache/cloudstack/issues/12067#issuecomment-3701660017

   There is a bug in setup/bindir/cloud-sysvmadm.in due to which if number of routers is more than 10 (default value of maxthreads), the script hangs forever.
   @tatay188  As a workaround, you can change maxthreads (-t) while running the script to avoid the hang.
   
   ```
   The tool for stopping/starting running system vms and domain routers. It requires integration API port to be enabled.
   
     Usage: %s: [-d] [-u] [-p] [-m] [-s] [-r] [-a] [-n] [-t] [-l] [-z] [-v] [-i] [-j]
   
      -d - cloud DB server ip address, defaulted to localhost if not specified
      -u - user name to access cloud DB, defaulted to \"root\" if not specified
      -p - cloud DB user password, defaulted to no password if not specified
      -m - the ip address of management server, defaulted to localhost if not specified
      -s - stop then start all running SSVMs and Console Proxies
      -r - stop then start all running Virtual Routers
      -a - stop then start all running SSVMs, Console Proxies, and Virtual Routers
      -n - restart all Guest networks
      -t - number of parallel threads used for stopping Domain Routers. Default is 10
      -l - log file location. Default is cloud.log under current directory
      -z - do restart only for the instances in the specific zone. If not specified, restart will apply to instances in all zones
      -v - do restart all VPCs in the entire system
      -i - do restart on instances with specific IDs. Comma-separated instance IDs to be provided. Works only when restarting SSVMs, CPVMs or VRs
      -j - do restart on instances from the specified database table. If not specified, restart will apply on instances present in cloud.vm_instance database table. Works only when restarting SSVMs, CPVMs or VRs\n\n"
   ```
   
   Basically for it to not hang, either
   1. maxthreads should be more than equal to number of routers, or
   2. maxthreads should be a factor of number of routers
   e.g, if number of routers is 22, then maxthreads should be 2, 11 or 22 and above)


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