adding startupTimeout

[Amalraj-Joseph-IBM]

Adding MP Health startupTimeout parameter to reduce intermittent application startup failures

#12

[paulben]

@Amalraj-Joseph-IBM the doc says the default is 500 seconds, and 30 is the minimum allowed. Do we really want the minimum here?

[Amalraj-Joseph-IBM]

@paulben @jgawor @reshmismenon @thasnim-fluxone

Sorry, I am missing something here. I thought the default value was something lower. If the default is 500, how would the app startup time out? Does the sample app take more than 8 minutes to start up? When running it locally, I felt like it started within a few seconds, so I thought 30 seconds would be reasonable.

So, if the mpHealth feature defaults the startup timeout to 500 seconds, it means the app is failing to start even after 8 minutes.
I think we need to find out why that is happening, if that is the case.
Increasing the timeout further could help us reduce the occurrence of this failure, but I think it would be like covering up a performance issue (which could not be caused by mpHealth, as we have been seeing this for a long time) by increasing the wait time—because most of the time, the app doesn’t take that long.