hi

how to fix this error ? what is the root cause?

clients seem to be running, all of them say :   Server started on 127.0.0.1:12345

CPLEX> mipopt
Version identifier: 12.10.0.0 | 2019-11-26 | 843d4de
CPLEX REMOTE OBJECT [25304] 2 Could not find CPXopenCPLEXremote in main object: -13
CPLEX REMOTE OBJECT [25304] 99 Library 'libcplex12100remote.so' loaded
CPLEX REMOTE OBJECT [25304] 99 Library 'libcplex12100tcpiptransport.so' loaded
CPLEX REMOTE OBJECT [25304] 1 connect: 111/111
CPLEX Error 1813: Unspecified operating system error..

Error termination, CPLEX Error 1813.
Solution time = 0.01 sec.
Deterministic time = 0.00 ticks (0.00 ticks/sec)

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srinivas tamvada
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#DecisionOptimization

Note that your worker is listening on its host's loopback device:
Server started on 127.0.0.1:12345
Unless all processes run on the same machine this is not going to work since the master has no chance to contact the worker at this local address.
As you can read in the documentation here, the IP address specified when starting the worker has to be the IP address of the worker, i.e., the address under which the machine can be reached from outside.

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Daniel Junglas
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