Files
stats/packages/db/src/buffers/profile-buffer.ts
Carl-Gerhard Lindesvärd 289ffb7d6d wip
2026-03-18 21:16:16 +01:00

324 lines
9.2 KiB
TypeScript

import { deepMergeObjects } from '@openpanel/common';
import { generateSecureId } from '@openpanel/common/server';
import { getSafeJson } from '@openpanel/json';
import type { ILogger } from '@openpanel/logger';
import { getRedisCache, type Redis } from '@openpanel/redis';
import shallowEqual from 'fast-deep-equal';
import { omit, uniq } from 'ramda';
import sqlstring from 'sqlstring';
import { ch, chQuery, TABLE_NAMES } from '../clickhouse/client';
import type { IClickhouseProfile } from '../services/profile.service';
import { BaseBuffer } from './base-buffer';
export class ProfileBuffer extends BaseBuffer {
private batchSize = process.env.PROFILE_BUFFER_BATCH_SIZE
? Number.parseInt(process.env.PROFILE_BUFFER_BATCH_SIZE, 10)
: 200;
private chunkSize = process.env.PROFILE_BUFFER_CHUNK_SIZE
? Number.parseInt(process.env.PROFILE_BUFFER_CHUNK_SIZE, 10)
: 1000;
private ttlInSeconds = process.env.PROFILE_BUFFER_TTL_IN_SECONDS
? Number.parseInt(process.env.PROFILE_BUFFER_TTL_IN_SECONDS, 10)
: 60 * 60;
private readonly redisKey = 'profile-buffer';
private readonly redisProfilePrefix = 'profile-cache:';
private redis: Redis;
private releaseLockSha: string | null = null;
private readonly releaseLockScript = `
if redis.call("get", KEYS[1]) == ARGV[1] then
return redis.call("del", KEYS[1])
else
return 0
end
`;
constructor() {
super({
name: 'profile',
onFlush: async () => {
await this.processBuffer();
},
});
this.redis = getRedisCache();
this.redis.script('LOAD', this.releaseLockScript).then((sha) => {
this.releaseLockSha = sha as string;
});
}
private getProfileCacheKey({
projectId,
profileId,
}: {
profileId: string;
projectId: string;
}) {
return `${this.redisProfilePrefix}${projectId}:${profileId}`;
}
private async withProfileLock<T>(
profileId: string,
projectId: string,
fn: () => Promise<T>
): Promise<T> {
const lockKey = `profile-lock:${projectId}:${profileId}`;
const lockId = generateSecureId('lock');
const maxRetries = 20;
const retryDelayMs = 50;
for (let i = 0; i < maxRetries; i++) {
const acquired = await this.redis.set(lockKey, lockId, 'EX', 5, 'NX');
if (acquired === 'OK') {
try {
return await fn();
} finally {
if (this.releaseLockSha) {
await this.redis.evalsha(this.releaseLockSha, 1, lockKey, lockId);
} else {
await this.redis.eval(this.releaseLockScript, 1, lockKey, lockId);
}
}
}
await new Promise((resolve) => setTimeout(resolve, retryDelayMs));
}
this.logger.error(
'Failed to acquire profile lock, proceeding without lock',
{
profileId,
projectId,
}
);
return fn();
}
async alreadyExists(profile: IClickhouseProfile) {
const cacheKey = this.getProfileCacheKey({
profileId: profile.id,
projectId: profile.project_id,
});
return (await this.redis.exists(cacheKey)) === 1;
}
async add(profile: IClickhouseProfile, isFromEvent = false) {
const logger = this.logger.child({
projectId: profile.project_id,
profileId: profile.id,
});
try {
logger.debug('Adding profile');
if (isFromEvent && (await this.alreadyExists(profile))) {
logger.debug('Profile already created, skipping');
return;
}
await this.withProfileLock(profile.id, profile.project_id, async () => {
const existingProfile = await this.fetchProfile(profile, logger);
// Delete any properties that are not server related if we have a non-server profile
if (
existingProfile?.properties.device !== 'server' &&
profile.properties.device === 'server'
) {
profile.properties = omit(
[
'city',
'country',
'region',
'longitude',
'latitude',
'os',
'osVersion',
'browser',
'device',
'isServer',
'os_version',
'browser_version',
],
profile.properties
);
}
const mergedProfile: IClickhouseProfile = existingProfile
? {
...deepMergeObjects(
existingProfile,
omit(['created_at', 'groups'], profile)
),
groups: uniq([
...(existingProfile.groups ?? []),
...(profile.groups ?? []),
]),
}
: profile;
if (
profile &&
existingProfile &&
shallowEqual(
omit(['created_at'], existingProfile),
omit(['created_at'], mergedProfile)
)
) {
this.logger.debug('Profile not changed, skipping');
return;
}
this.logger.debug('Merged profile will be inserted', {
mergedProfile,
existingProfile,
profile,
});
const cacheKey = this.getProfileCacheKey({
profileId: profile.id,
projectId: profile.project_id,
});
const result = await this.redis
.multi()
.set(cacheKey, JSON.stringify(mergedProfile), 'EX', this.ttlInSeconds)
.rpush(this.redisKey, JSON.stringify(mergedProfile))
.incr(this.bufferCounterKey)
.llen(this.redisKey)
.exec();
if (!result) {
this.logger.error('Failed to add profile to Redis', {
profile,
cacheKey,
});
return;
}
const bufferLength = (result?.[3]?.[1] as number) ?? 0;
this.logger.debug('Current buffer length', {
bufferLength,
batchSize: this.batchSize,
});
if (bufferLength >= this.batchSize) {
await this.tryFlush();
}
});
} catch (error) {
this.logger.error('Failed to add profile', { error, profile });
}
}
private async fetchProfile(
profile: IClickhouseProfile,
logger: ILogger
): Promise<IClickhouseProfile | null> {
const existingProfile = await this.fetchFromCache(
profile.id,
profile.project_id
);
if (existingProfile) {
logger.debug('Profile found in Redis');
return existingProfile;
}
return this.fetchFromClickhouse(profile, logger);
}
public async fetchFromCache(
profileId: string,
projectId: string
): Promise<IClickhouseProfile | null> {
const cacheKey = this.getProfileCacheKey({
profileId,
projectId,
});
const existingProfile = await this.redis.get(cacheKey);
if (!existingProfile) {
return null;
}
return getSafeJson<IClickhouseProfile>(existingProfile);
}
private async fetchFromClickhouse(
profile: IClickhouseProfile,
logger: ILogger
): Promise<IClickhouseProfile | null> {
logger.debug('Fetching profile from Clickhouse');
const result = await chQuery<IClickhouseProfile>(
`SELECT
id,
project_id,
last_value(nullIf(first_name, '')) as first_name,
last_value(nullIf(last_name, '')) as last_name,
last_value(nullIf(email, '')) as email,
last_value(nullIf(avatar, '')) as avatar,
last_value(is_external) as is_external,
last_value(properties) as properties,
last_value(created_at) as created_at
FROM ${TABLE_NAMES.profiles}
WHERE
id = ${sqlstring.escape(String(profile.id))} AND
project_id = ${sqlstring.escape(profile.project_id)}
${
profile.is_external === false
? ' AND profiles.created_at > now() - INTERVAL 2 DAY'
: ''
}
GROUP BY id, project_id
ORDER BY created_at DESC
LIMIT 1`
);
logger.debug('Clickhouse fetch result', {
found: !!result[0],
});
return result[0] || null;
}
async processBuffer() {
try {
this.logger.debug('Starting profile buffer processing');
const profiles = await this.redis.lrange(
this.redisKey,
0,
this.batchSize - 1
);
if (profiles.length === 0) {
this.logger.debug('No profiles to process');
return;
}
this.logger.debug(`Processing ${profiles.length} profiles in buffer`);
const parsedProfiles = profiles.map((p) =>
getSafeJson<IClickhouseProfile>(p)
);
for (const chunk of this.chunks(parsedProfiles, this.chunkSize)) {
await ch.insert({
table: TABLE_NAMES.profiles,
values: chunk,
format: 'JSONEachRow',
});
}
// Only remove profiles after successful insert and update counter
await this.redis
.multi()
.ltrim(this.redisKey, profiles.length, -1)
.decrby(this.bufferCounterKey, profiles.length)
.exec();
this.logger.debug('Successfully completed profile processing', {
totalProfiles: profiles.length,
});
} catch (error) {
this.logger.error('Failed to process buffer', { error });
}
}
async getBufferSize() {
return this.getBufferSizeWithCounter(() => this.redis.llen(this.redisKey));
}
}