Changes:
* replace `iotuil` elements with the ones from `os` package;
* replace `os.Filemode` with `fs.FileMode`;
* use `signal.NotifyContext` instead of `NewGracefulContext` (removed).
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Implement function `fatalOnErrDetails` similar to `fatalOnErr` but accepting
string details that are written to log output. Use the function everywhere
in application code without wrapping in an if-else statement.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Application can be shut down often, it is undesirable to send status changes
on a transaction every time. Control API should be used before shutdown for
this purpose.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Rename `util/profiler` package to `httputil` and refactor it:
* simplify utility HTTP server;
* make more generic server's parameters in order to remove `viper.Viper`
dependency;
* use single constructor for creating the pprof and prometheus servers;
* replace `enabled` config value with empty-check of the network address.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Writing application version in each log message seems pretty redundant.
Remove global `app_version` field from Node/IR loggers. Write version, build
time and debug flag once on start.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Eigen trust block timer ticks to start new round of
eigen trust calculations. Every epoch this timer
recalculates duration and starts again.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
if `shutdown.offline.enabled` config option set to true, then
send netmap.UpdateState(offline) tx at the shutdown. This config
option is not set by default.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
Implement and call `initReputationService` func that constructs local trust
storage and controller, and subscribes the controller on new epoch
notification. Event handler calls `Controller.Report` method to process
collected values.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Switch health status to:
* STARTING after the initialization of app resources and before bootup;
* READY after bootup and until shutting down;
* SHUTTING_DOWN before exiting the application.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Update node network status via update status by getting the latest network
map and finding the node in it. This step is performed at the start of the
application and upon notification of a new epoch.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Implement HealthChecker on node app structure. Set health status to ONLINE
after node boot. Set health status to OFFLINE on shutdown.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
As in #72 storage application should behave the same way at remote
RPC node failures. The simplest way is to restart application. Later
we can reinitialize it without downtime.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
Transfer the state of the node to offline when the application is shut down.
Updating the state is done by calling UpdateState method of Netmap contract.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
To run storage node at dev-env environment it should have
configurable parameters. To keep `cfg` structures we can
read configuration from env and yml config file with viper
and parse values such as script hashes, fees, keys into
`cfg` structures.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
