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start.go
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start.go
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package main
import (
"fmt"
"sort"
"time"
"github.com/tendermint/tendermint/libs/log"
e2e "github.com/tendermint/tendermint/test/e2e/pkg"
)
func Start(testnet *e2e.Testnet) error {
if len(testnet.Nodes) == 0 {
return fmt.Errorf("no nodes in testnet")
}
// Nodes are already sorted by name. Sort them by name then startAt,
// which gives the overall order startAt, mode, name.
nodeQueue := testnet.Nodes
sort.SliceStable(nodeQueue, func(i, j int) bool {
a, b := nodeQueue[i], nodeQueue[j]
switch {
case a.Mode == b.Mode:
return false
case a.Mode == e2e.ModeSeed:
return true
case a.Mode == e2e.ModeValidator && b.Mode == e2e.ModeFull:
return true
}
return false
})
sort.SliceStable(nodeQueue, func(i, j int) bool {
return nodeQueue[i].StartAt < nodeQueue[j].StartAt
})
if nodeQueue[0].StartAt > 0 {
return fmt.Errorf("no initial nodes in testnet")
}
// Start initial nodes (StartAt: 0)
logger.Info("Starting initial network nodes...")
for len(nodeQueue) > 0 && nodeQueue[0].StartAt == 0 {
node := nodeQueue[0]
nodeQueue = nodeQueue[1:]
if err := execCompose(testnet.Dir, "up", "-d", node.Name); err != nil {
return err
}
if _, err := waitForNode(node, 0, 15*time.Second); err != nil {
return err
}
logger.Info("start", "msg", log.NewLazySprintf("Node %v up on http://127.0.0.1:%v", node.Name, node.ProxyPort))
}
networkHeight := testnet.InitialHeight
// Wait for initial height
logger.Info("Waiting for initial height",
"height", networkHeight,
"nodes", len(testnet.Nodes)-len(nodeQueue),
"pending", len(nodeQueue))
block, blockID, err := waitForHeight(testnet, networkHeight)
if err != nil {
return err
}
// Update any state sync nodes with a trusted height and hash
for _, node := range nodeQueue {
if node.StateSync || node.Mode == e2e.ModeLight {
err = UpdateConfigStateSync(node, block.Height, blockID.Hash.Bytes())
if err != nil {
return err
}
}
}
for _, node := range nodeQueue {
if node.StartAt > networkHeight {
// if we're starting a node that's ahead of
// the last known height of the network, then
// we should make sure that the rest of the
// network has reached at least the height
// that this node will start at before we
// start the node.
networkHeight = node.StartAt
logger.Info("Waiting for network to advance before starting catch up node",
"node", node.Name,
"height", networkHeight)
if _, _, err := waitForHeight(testnet, networkHeight); err != nil {
return err
}
}
logger.Info("Starting catch up node", "node", node.Name, "height", node.StartAt)
if err := execCompose(testnet.Dir, "up", "-d", node.Name); err != nil {
return err
}
status, err := waitForNode(node, node.StartAt, 3*time.Minute)
if err != nil {
return err
}
logger.Info("start", "msg", log.NewLazySprintf("Node %v up on http://127.0.0.1:%v at height %v",
node.Name, node.ProxyPort, status.SyncInfo.LatestBlockHeight))
}
return nil
}