"Starting Licensing Client Proxy server" licence error

calwcalw Member Posts: 1
edited April 21 in Ansys Products

Recently installed 2021R1 on our cluster and CFX/Fluent have been failing due to a licence error.

  • Using Centos7
  • Users have no issues using 2021R1 CFX/Fluent on their local machines using the same licence server.
  • Licence settings are provided by setting `ANSYSLMD_LICENSE_FILE = 1055@<cname>`
  • All previous installs of ANSYS work fine with identical setup.

Comparing the licence debug logs of the same casefile run with v202 vs v211

v202

2021/04/20 10:18:44  NEW_CONNECTION   
Connected to license server: 2325@<cname>.
  ANSYSLI_SERVERS: 2325@<cname>
  FLEXlm Servers: 1055@<cname>
2021/04/20 10:18:45  CHECKOUT      cfd_solve_level2        20.2 (2020.0507)    1/1/36/1375    77/83/8640/8640 103417:CFX_SOLVER:cwal219@wbl002.cm.cluster:linx64    56056:10.65.5.155 
2021/04/20 10:18:45  CHECKOUT      cfd_solve_level1        20.2 (2020.0507)    1/1/36/1375    77/83/8640/8640 103417:CFX_SOLVER:cwal219@wbl002.cm.cluster:linx64    56056:10.65.5.155 
2021/04/20 10:18:45  CHECKOUT      cfd_base            20.2 (2020.0507)    1/1/40/1375    77/83/8640/8640 103417:CFX_SOLVER:cwal219@wbl002.cm.cluster:linx64    56056:10.65.5.155 
2021/04/20 10:18:45  CHECKOUT      FEAT_CFD_BASE         20.2 (2020.0507)     1/1/40/-1    77/83/8640/8640 103417:CFX_SOLVER:cwal219@wbl002.cm.cluster:linx64    56056:10.65.5.155 
....
2021/04/20 10:19:07  CHECKIN      cfd_solve_level1        20.2 (2020.0507)    1/0/35/1375    77/83/8640/8640 103417:CFX_SOLVER:cwal219@wbl002.cm.cluster:linx64    56056:10.65.5.155 
2021/04/20 10:19:07  CHECKIN      CFX_SOLVER           20.2 (2020.0507)      1/0/0/1    77/83/8640/8640 103417:CFX_SOLVER:cwal219@wbl002.cm.cluster:linx64    56056:10.65.5.155 
2021/04/20 10:19:07  CHECKIN      cfd_solve_level2        20.2 (2020.0507)    1/0/35/1375    77/83/8640/8640 103417:CFX_SOLVER:cwal219@wbl002.cm.cluster:linx64    56056:10.65.5.155 
2021/04/20 10:19:07  CLIENT_EXIT                                           76/83/8640/8640 103417:CFX_SOLVER:cwal219@wbl002.cm.cluster:linx64    56056:10.65.5.155  

v211

2021/04/19 11:08:15  INFO        Starting Licensing Client Proxy server.
2021/04/19 11:08:15  INFO        /opt/nesi/share/ANSYS/v211/licensingclient/linx64/ansyscl -acl 27126.33050 -nodaemon -log /home/cwal219/.ansys/ansyscl.wbl010.27126.33050.log
2021/04/19 11:08:15  INFO        Started ANSYSLI server.
2021/04/19 11:08:32  CLIENT_CONNECT                                             1/1/1/1 27126:CFX_SOLVER:cwal219@wbl010.cm.cluster:linx64     9:10.65.5.163   
2021/04/19 11:08:32  NEW_CONNECTION   Connected to Licensing Client Proxy server: 45742@127.0.0.1.
2021/04/19 11:08:33  INFO        Parent Child context created with id 701e46cf-1bd3-47e6-9109-72d830ca38bd.
2021/04/19 11:08:37  CLIENT_CONNECT                                             2/2/2/2 27223:CFX_SOLVER:cwal219@wbl010.cm.cluster:linx64     10:10.65.5.163   
2021/04/19 11:08:37  NEW_CONNECTION   Connected to Licensing Client Proxy server: 45742@wbl010.cm.cluster.
2021/04/19 11:09:19  INFO        Using Parent Child context 701e46cf-1bd3-47e6-9109-72d830ca38bd.
2021/04/19 11:09:19  INFO        Unable to connect to FLEXlm path 1055@a<cname>; adding to "Unavailable FLEXlm Servers" cache.
2021/04/19 11:09:19  DENIED       FEAT_CFD_SOLVE_LEVEL2     21.1 (2020.1029)      1/0/0/0        2/2/2/2 27223:CFX_SOLVER:cwal219@wbl010.cm.cluster:linx64     10:10.65.5.163   
...
Failover feature 'CFD Solver - Level 2' is not available.
FLEXlm server is not responding. Resource temporarily not available.
  ANSYSLI_SERVERS: 2325@<cname>
  FLEXlm Servers: 1055@<cname>
2021/04/20 10:19:50  DENIED       cfd_solve_level2        21.1 (2020.1029)      1/0/0/0        2/2/2/2 103425:CFX_SOLVER:cwal219@wbl002.cm.cluster:linx64    10:10.65.5.155   
...
2021/04/20 10:19:51  CLIENT_EXIT                                               1/2/2/2 103425:CFX_SOLVER:cwal219@wbl002.cm.cluster:linx64    10:10.65.5.155   
2021/04/20 10:19:52  CLIENT_EXIT                                               0/2/1/2 103232:CFX_SOLVER:cwal219@wbl002.cm.cluster:linx64    9:10.65.5.155  

As you can see, in the v211 log it seems to be launching a proxy server on the local compute node and then failing.


How do I stop this from happening?

Thanks in advance, some urgency.

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Answers

  • Geo KarnosGeo Karnos Posts: 161Ansys Employee
    edited April 26

    @calw

    2021 R1 uses direct connection to Flexnet instead of using the ANSYS Licensing Interconnect like earlier version.

    The proxy is needed.

    On the license server, edit the license file and:

    Edit VENDOR line to be: VENDOR ansyslmd PORT=1056

    Make sure that port 1056 is added to any inbound/outbound firewall exceptions on all machines

    You can run the following to test ports for lmgrd and ansyslmd

    (echo >/dev/tcp/<cname>/1055) &>/dev/null && echo "Open 1055" || echo "Close 1055"

    (echo >/dev/tcp/<cname>/1056) &>/dev/null && echo "Open 1056" || echo "Close 1056"

    Hope this helps!

    Geo

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