why uda service is considered as type=fork

[DorisBDR]

we would like to understand why the uda systemd service is configured with type=forking
in our case it creates problem...with long sessions
2025-03-25T16:36:16.188691+00:00 io-ls-XX systemd[1]:
[email protected]:3090-127.0.0.1:39896.service: Failed
with result 'timeout'.
2025-03-25T16:36:16.189053+00:00 io-ls-XX systemd[1]: Failed to start
codac-udaserver service (127.0.0.1:39896).
2025-03-25T16:36:16.249972+00:00 io-ls-XX systemd[1]: Starting
codac-udaserver service (127.0.0.1:39902)...
2025-03-25T16:37:46.432793+00:00 io-ls-XX systemd[1]:
[email protected]:3090-127.0.0.1:39902.service: start
operation timed out. Terminating.
2025-03-25T16:37:46.435941+00:00 io-ls-XXsystemd[1]:
[email protected]:3090-127.0.0.1:39902.service: Failed
with result 'timeout'.
2025-03-25T16:37:46.436246+00:00 io-ls-XX systemd[1]: Failed to start
codac-udaserver service (127.0.0.1:39902).
2025-03-25T16:37:46.498369+00:00 XX systemd[1]: Starting
codac-udaserver service (127.0.0.1:39908)...
2025-03-25T16:39:16.682861+00:00 X systemd[1]:
[email protected]:3090-127.0.0.1:39908.service: start
operation timed out. Terminating.
2025-03-25T16:39:16.688140+00:00 io-ls-XX1 systemd[1]:
[email protected]:3090-127.0.0.1:39908.service: Failed
with result 'timeout'.
2025-03-25T16:39:16.688305+00:00 io-ls-XX1 systemd[1]: Failed to start
codac-udaserver service (127.0.0.1:39908).
2025-03-25T16:39:16.755091+00:00 io-ls-XX1 systemd[1]: Starting
codac-udaserver service (127.0.0.1:39914)...
2025-03-25T16:40:46.932866+00:00 io-ls-XX1 systemd[1]:
[email protected]:3090-127.0.0.1:39914.service: start
operation timed out. Terminating.
2025-03-25T16:40:46.937106+00:00 io-ls-XX1 systemd[1]:
[email protected]:3090-127.0.0.1:39914.service: Failed
with result 'timeout'.
2025-03-25T16:40:46.937715+00:00 io-ls-XX1 systemd[1]: Failed to start
codac-udaserver service (127.0.0.1:39914).
2025-03-25T16:40:47.001236+00:00 io-ls-XX1 systemd[1]: Starting
codac-udaserver service (127.0.0.1:39920)...
2025-03-25T16:42:17.182790+00:00 io-ls-XX1 systemd[1]:
[email protected]:3090-127.0.0.1:39920.service: start
operation timed out. Terminating.
2025-03-25T16:42:17.186004+00:00 io-ls-XX1 systemd[1]:
[email protected]:3090-127.0.0.1:39920.service: Failed
with result 'timeout'.
2025-03-25T16:42:17.186295+00:00 io-ls-XX1 systemd[1]: Failed to start
codac-udaserver service (127.0.0.1:39920).
2025-03-25T16:42:17.246786+00:00 io-ls-XX1 systemd[1]: Starting
codac-udaserver service (127.0.0.1:39926)...
2025-03-25T16:43:47.432831+00:00 io-ls-XX1 systemd[1]:
[email protected]:3090-127.0.0.1:39926.service: start
operation timed out. Terminating.
2025-03-25T16:43:47.437971+00:00 io-ls-XX1 systemd[1]:
[email protected]:3090-127.0.0.1:39926.service: Failed
with result 'timeout'.
2025-03-25T16:43:47.438275+00:00 io-ls-XX1 systemd[1]: Failed to start
codac-udaserver service (127.0.0.1:39926).
2025-03-25T16:43:47.493880+00:00 io-ls-XX1 systemd[1]:
codac-7.3-udaserver-service.socket: Too many incoming connections (101) from
source 127.0.0.1, dropping connection.
2025-03-25T16:43:47.494075+00:00 io-ls-XX1 systemd[1]:
codac-7.3-udaserver-service.socket: Too many incoming connections (101) from
source 127.0.0.1, dropping connection.
2025-03-25T16:43:47.494446+00:00 io-ls-XX1 systemd[1]:
codac-7.3-udaserver-service.socket: Too many incoming connections (101) from
source 127.0.0.1, dropping connection.
2025-03-25T16:43:47.494671+00:00 io-ls-XX1 systemd[1]:
codac-7.3-udaserver-service.socket: Too many incoming connections (101) from
source 127.0.0.1, dropping connection.
2025-03-25T16:43:47.494798+00:00 io-ls-XX1 systemd[1]:
codac-7.3-udaserver-service.socket: Too many incoming connections (101) from
source 127.0.0.1, dropping connection.
2025-03-25T16:43:47.502272+00:00 io-ls-XX1 systemd[1]:
codac-7.3-udaserver-service.socket: Too many incoming connections (101) from
source 127.0.0.1, dropping connection.
2025-03-25T16:43:47.502547+00:00 io-ls-XX1 systemd[1]:
codac-7.3-udaserver-service.socket: Too many incoming connections (101) from
source 127.0.0.1, dropping connection.
2025-03-25T16:43:47.502705+00:00 io-ls-XX1 systemd[1]:
codac-7.3-udaserver-service.socket: Too many incoming connections (101) from
source 127.0.0.1, dropping connection.
2025-03-25T16:43:47.502982+00:00 io-ls-XX1 systemd[1]:
codac-7.3-udaserver-service.socket: Too many incoming connections (101) from
source 127.0.0.1, dropping connection.
2025-03-25T16:43:47.503190+00:00 io-ls-XX1 systemd[1]:
codac-7.3-udaserver-service.socket: Too many incoming connections (101) from
source 127.0.0.1, dropping connection.
2025-03-25T16:43:47.503865+00:00 io-ls-XX1 systemd[1]:
codac-7.3-udaserver-service.socket: Too many incoming connections (101) from
source 127.0.0.1, dropping connection.

[DorisBDR]

in our case we had to configure it as type=simple

[jholloc]

I believe it is selected as type=forking simply because that was the closest match to the existing xinetd configuration.

I'd have to investigate the different types of systemd processes to comment further.