APT_Communicator::connectTo: connect() failed due to Unix error = 10,061 (Unknown error) on node HOST_NAME using ConnectionInfo object 'TCP, connection Host: HOST_NAME (IP_ADDRESS), TCP port number: 0', RETRYING connect()

Problem(Abstract)

Errors related to this issue:

unable to connect to port 10000 on conductor; socket = 0, Unknown error

APT_Communicator::connectTo: connect() failed due to Unix error = 10,061 (Unknown error) on node HOST_NAME using ConnectionInfo object 'TCP, connection Host: HOST_NAME (IP_ADDRESS), TCP port number: 0', RETRYING connect()

Resolving the problem

Hosts should have at least the following 2 entries:

# localhost name resolution is handled within DNS itself.
127.0.0.1 localhost
::1 localhost

You should be able to ping localhost via V4 and V6 IP topologies:
ping -4 localhost
ping -6 localhost

Set $APT_USE_IPV4=1 as the default in all projects or set this as Windows default environment.

Steps to set $APT_USE_IPV4 DataStage Administrator client:

1. Select Projects tab
2. Select Project
3. Click Properties
4. Click Environment button
5. Click Parallel Category
6. Locate APT_USE_IPV4 and set to TRUE