Ansys License Manager connectivity failures and log correlation
0 reputation · 27 Feb 2023, 01:49 UTC
The Ansys License Manager utilizes a FlexNet Publisher architecture consisting of the lmgrd server daemon and the ansyslmd vendor daemon. When clients fail to check out licenses, the root cause can reside either within the server-side daemon state or the client-side network configuration.
Server-side issues often manifest in the debug logs as hostid mismatches or vendor daemon exits. Conversely, client-side failures typically involve incorrect license path variables (ANSYSLMD_LICENSE_FILE) or firewall restrictions blocking the communication ports between the client and the server.
Given that the vendor daemon may use a dynamic port by default, diagnosing whether a checkout failure is due to a server-side daemon crash, a license file mismatch, or a network block requires correlating specific FlexNet error codes with the server's debug log entries.
Technical Uncertainties
- How can a system administrator definitively distinguish between a vendor daemon (ansyslmd) failure and a firewall block when the client reports a connection error?
- Which specific log patterns in the
lmgrddebug file confirm a hostid mismatch versus a failure to bind to a network port?
ansys