machankura/mempool
3
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge pull request #2319 from mempool/nymkappa/feature/import-json-topology

Browse Source 
Import json topology
This commit is contained in:
wiz 2022-08-19 23:57:03 +09:00 committed by GitHub
commit 4cf4efd3f2
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 144 additions and 97 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
backend/src/api/common.ts
View File

@ -207,6 +207,10 @@ export class Common {
/** Decodes a channel id returned by lnd as uint64 to a short channel id */
static channelIntegerIdToShortId(id: string): string {
if (id.indexOf('/') !== -1) {
id = id.slice(0, -2);
}
if (id.indexOf('x') !== -1) { // Already a short id
return id;
}

4
backend/src/tasks/lightning/sync-tasks/funding-tx-fetcher.ts
View File

@ -71,9 +71,7 @@ class FundingTxFetcher {
}
public async $fetchChannelOpenTx(channelId: string): Promise<{timestamp: number, txid: string, value: number}> {
if (channelId.indexOf('x') === -1) {
channelId = Common.channelIntegerIdToShortId(channelId);
}
channelId = Common.channelIntegerIdToShortId(channelId);
if (this.fundingTxCache[channelId]) {
return this.fundingTxCache[channelId];

233
backend/src/tasks/lightning/sync-tasks/stats-importer.ts
View File

@ -8,30 +8,6 @@ import { isIP } from 'net';
const fsPromises = promises;
interface Node {
id: string;
timestamp: number;
features: string;
rgb_color: string;
alias: string;
addresses: unknown[];
out_degree: number;
in_degree: number;
}
interface Channel {
channel_id: string;
node1_pub: string;
node2_pub: string;
timestamp: number;
features: string;
fee_base_msat: number;
fee_rate_milli_msat: number;
htlc_minimim_msat: number;
cltv_expiry_delta: number;
htlc_maximum_msat: number;
}
class LightningStatsImporter {
topologiesFolder = config.LIGHTNING.TOPOLOGY_FOLDER;
@ -59,11 +35,11 @@ class LightningStatsImporter {
let isUnnanounced = true;
for (const socket of (node.addresses ?? [])) {
if (!socket.network?.length || !socket.addr?.length) {
if (!socket.network?.length && !socket.addr?.length) {
continue;
}
hasOnion = hasOnion || ['torv2', 'torv3'].includes(socket.network) || socket.addr.indexOf('onion') !== -1;
hasClearnet = hasClearnet || ['ipv4', 'ipv6'].includes(socket.network) || [4, 6].includes(isIP(socket.addr.split(':')[0]));
hasOnion = hasOnion || ['torv2', 'torv3'].includes(socket.network) || socket.addr.indexOf('onion') !== -1 || socket.addr.indexOf('torv2') !== -1 || socket.addr.indexOf('torv3') !== -1;
hasClearnet = hasClearnet || ['ipv4', 'ipv6'].includes(socket.network) || [4, 6].includes(isIP(socket.addr.split(':')[0])) || socket.addr.indexOf('ipv4') !== -1 || socket.addr.indexOf('ipv6') !== -1;;
}
if (hasOnion && hasClearnet) {
clearnetTorNodes++;
@ -262,83 +238,152 @@ class LightningStatsImporter {
* Import topology files LN historical data into the database
*/
async $importHistoricalLightningStats(): Promise<void> {
const fileList = await fsPromises.readdir(this.topologiesFolder);
// Insert history from the most recent to the oldest
// This also put the .json cached files first
fileList.sort().reverse();
const [rows]: any[] = await DB.query(`
SELECT UNIX_TIMESTAMP(added) AS added, node_count
FROM lightning_stats
ORDER BY added DESC
`);
const existingStatsTimestamps = {};
for (const row of rows) {
existingStatsTimestamps[row.added] = row;
}
// For logging purpose
let processed = 10;
let totalProcessed = 0;
let logStarted = false;
for (const filename of fileList) {
processed++;
const timestamp = parseInt(filename.split('_')[1], 10);
// Stats exist already, don't calculate/insert them
if (existingStatsTimestamps[timestamp] !== undefined) {
continue;
}
if (filename.indexOf('.topology') === -1) {
continue;
}
logger.debug(`Reading ${this.topologiesFolder}/${filename}`);
let fileContent = '';
try {
let fileList: string[] = [];
try {
fileContent = await fsPromises.readFile(`${this.topologiesFolder}/${filename}`, 'utf8');
} catch (e: any) {
if (e.errno == -1) { // EISDIR - Ignore directorie
fileList = await fsPromises.readdir(this.topologiesFolder);
} catch (e) {
logger.err(`Unable to open topology folder at ${this.topologiesFolder}`);
throw e;
}
// Insert history from the most recent to the oldest
// This also put the .json cached files first
fileList.sort().reverse();
const [rows]: any[] = await DB.query(`
SELECT UNIX_TIMESTAMP(added) AS added, node_count
FROM lightning_stats
ORDER BY added DESC
`);
const existingStatsTimestamps = {};
for (const row of rows) {
existingStatsTimestamps[row.added] = row;
}
// For logging purpose
let processed = 10;
let totalProcessed = 0;
let logStarted = false;
for (const filename of fileList) {
processed++;
const timestamp = parseInt(filename.split('_')[1], 10);
// Stats exist already, don't calculate/insert them
if (existingStatsTimestamps[timestamp] !== undefined) {
continue;
}
if (filename.indexOf('topology_') === -1) {
continue;
}
logger.debug(`Reading ${this.topologiesFolder}/${filename}`);
let fileContent = '';
try {
fileContent = await fsPromises.readFile(`${this.topologiesFolder}/${filename}`, 'utf8');
} catch (e: any) {
if (e.errno == -1) { // EISDIR - Ignore directorie
continue;
}
logger.err(`Unable to open ${this.topologiesFolder}/${filename}`);
continue;
}
let graph;
try {
graph = JSON.parse(fileContent);
graph = await this.cleanupTopology(graph);
} catch (e) {
logger.debug(`Invalid topology file ${this.topologiesFolder}/${filename}, cannot parse the content`);
continue;
}
if (!logStarted) {
logger.info(`Founds a topology file that we did not import. Importing historical lightning stats now.`);
logStarted = true;
}
const datestr = `${new Date(timestamp * 1000).toUTCString()} (${timestamp})`;
logger.debug(`${datestr}: Found ${graph.nodes.length} nodes and ${graph.edges.length} channels`);
totalProcessed++;
if (processed > 10) {
logger.info(`Generating LN network stats for ${datestr}. Processed ${totalProcessed}/${fileList.length} files`);
processed = 0;
} else {
logger.debug(`Generating LN network stats for ${datestr}. Processed ${totalProcessed}/${fileList.length} files`);
}
await fundingTxFetcher.$fetchChannelsFundingTxs(graph.edges.map(channel => channel.channel_id.slice(0, -2)));
const stat = await this.computeNetworkStats(timestamp, graph);
existingStatsTimestamps[timestamp] = stat;
}
let graph;
try {
graph = JSON.parse(fileContent);
} catch (e) {
logger.debug(`Invalid topology file ${this.topologiesFolder}/${filename}, cannot parse the content`);
if (totalProcessed > 0) {
logger.info(`Lightning network stats historical import completed`);
}
} catch (e) {
logger.err(`Lightning network stats historical failed. Reason: ${e instanceof Error ? e.message : e}`);
}
}
async cleanupTopology(graph) {
const newGraph = {
nodes: <ILightningApi.Node[]>[],
edges: <ILightningApi.Channel[]>[],
};
for (const node of graph.nodes) {
const addressesParts = (node.addresses ?? '').split(',');
const addresses: any[] = [];
for (const address of addressesParts) {
addresses.push({
network: '',
addr: address
});
}
newGraph.nodes.push({
last_update: node.timestamp ?? 0,
pub_key: node.id ?? null,
alias: node.alias ?? null,
addresses: addresses,
color: node.rgb_color ?? null,
features: {},
});
}
for (const adjacency of graph.adjacency) {
if (adjacency.length === 0) {
continue;
}
if (!logStarted) {
logger.info(`Founds a topology file that we did not import. Importing historical lightning stats now.`);
logStarted = true;
}
const datestr = `${new Date(timestamp * 1000).toUTCString()} (${timestamp})`;
logger.debug(`${datestr}: Found ${graph.nodes.length} nodes and ${graph.edges.length} channels`);
totalProcessed++;
if (processed > 10) {
logger.info(`Generating LN network stats for ${datestr}. Processed ${totalProcessed}/${fileList.length} files`);
processed = 0;
} else {
logger.debug(`Generating LN network stats for ${datestr}. Processed ${totalProcessed}/${fileList.length} files`);
for (const edge of adjacency) {
newGraph.edges.push({
channel_id: edge.scid,
chan_point: '',
last_update: edge.timestamp,
node1_pub: edge.source ?? null,
node2_pub: edge.destination ?? null,
capacity: '0', // Will be fetch later
node1_policy: {
time_lock_delta: edge.cltv_expiry_delta,
min_htlc: edge.htlc_minimim_msat,
fee_base_msat: edge.fee_base_msat,
fee_rate_milli_msat: edge.fee_proportional_millionths,
max_htlc_msat: edge.htlc_maximum_msat,
last_update: edge.timestamp,
disabled: false,
},
node2_policy: null,
});
}
}
await fundingTxFetcher.$fetchChannelsFundingTxs(graph.edges.map(channel => channel.channel_id.slice(0, -2)));
const stat = await this.computeNetworkStats(timestamp, graph);
existingStatsTimestamps[timestamp] = stat;
}
if (totalProcessed > 0) {
logger.info(`Lightning network stats historical import completed`);
}
return newGraph;
}
}