Simon Willnauer a1cd6be777 Don't register SearchTransportService handlers more than once (#20468)
This utility class is used in 3 places while we only need to register
the handlers once per node. Otherwise we will see nasty `WARN` logs like:
`registered two transport handlers for action indices:data/read/search[phase/fetch/id/scroll]...`

This change will only register handlers inside the main TransportSearchAction.
2016-09-14 10:34:40 +02:00
..
2016-08-30 13:31:24 -04:00