When excute "lst tp" command through spg web portal,system report a "obtaining connections from the connection pool fails" information.however,the same command can be excuted successfully directly on ATS LMT.
Configurate the required link between the ATS and OMU and then the problem solved, need special attention are: in order to save resources, the http links between ATS and OMU are short connection, when there is data interaction, a connection is set up. when the data interaction ends, the connection is disconnected to release the system resources. in short connection mode, when there is no data interaction and link status is down in the command output of "dsp httplnk".
We check and find that the status of links between SPG and ATS are normal as well as ordinary commands can be excuted successfully,then can exclude SPG communication problem with the ATS.
and according to investigation, the query template data (LST TP) is a ATS command which need to deal with the OMU ,so should configure http links data between the ATS and OMU.
Since the site hasn't made the corresponding configuration,the command excuted fail.
In addition to the template configuration commands, ATS's centrex service is also related with OMU data, you also need to configure the ATS and OMU link before execute these commands.