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healthcheck: monitor access to chain backend

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Add a new health check package which will periodically poll health
check functions and shutdown if we do not succeed after our set number
of attempts. The first check that we add is one for our chain backend,
to ensure that we are connected to a bitcoin node.
This commit is contained in:
carla
2020-08-24 08:54:38 +02:00
parent daae8a9944
commit c365a16656
8 changed files with 633 additions and 0 deletions
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2
log.go
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@ -16,6 +16,7 @@ import (
"github.com/lightningnetwork/lnd/channelnotifier"
"github.com/lightningnetwork/lnd/contractcourt"
"github.com/lightningnetwork/lnd/discovery"
"github.com/lightningnetwork/lnd/healthcheck"
"github.com/lightningnetwork/lnd/htlcswitch"
"github.com/lightningnetwork/lnd/invoices"
"github.com/lightningnetwork/lnd/lnrpc/autopilotrpc"
@ -129,6 +130,7 @@ func SetupLoggers(root *build.RotatingLogWriter) {
AddSubLogger(root, routerrpc.Subsystem, routerrpc.UseLogger)
AddSubLogger(root, chanfitness.Subsystem, chanfitness.UseLogger)
AddSubLogger(root, verrpc.Subsystem, verrpc.UseLogger)
AddSubLogger(root, healthcheck.Subsystem, healthcheck.UseLogger)
}
// AddSubLogger is a helper method to conveniently create and register the