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feat: Hide nodes that fail to sync a block in 15 minutes (#154)

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* feat: Hide nodes that fail to sync a block in 15 minutes

* fix: Don't resend stale event if node is already stale
This commit is contained in:
Maciej Hirsz
2019-06-20 16:15:32 +02:00
committed by GitHub
parent d7304b575d
commit 31bc535c5c
2 changed files with 30 additions and 1 deletions
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packages/backend/src/Node.ts
+7
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@@ -22,6 +22,7 @@ const BLOCK_TIME_HISTORY = 10;
const MEMORY_RECORDS = 20;
const CPU_RECORDS = 20;
const TIMEOUT = (1000 * 60 * 1) as Types.Milliseconds; // 1 minute
const NO_BLOCK_TIMEOUT = (1000 * 60 * 15) as Types.Milliseconds; // 15 minutes
const nextId = idGenerator<Types.NodeId>();
@@ -52,6 +53,7 @@ export default class Node {
public blockTime = 0 as Types.Milliseconds;
public blockTimestamp = 0 as Types.Timestamp;
public propagationTime: Maybe<Types.PropagationTime> = null;
public isStale = false;
private peers = 0 as Types.PeerCount;
private txcount = 0 as Types.TransactionCount;
@@ -190,6 +192,11 @@ export default class Node {
if (this.lastMessage + TIMEOUT < now) {
this.disconnect();
} else {
if (!this.isStale && this.blockTimestamp + NO_BLOCK_TIMEOUT < now) {
this.isStale = true;
this.events.emit('stale');
}
this.updateLatency(now);
}
}