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Revert: Reduce DB pool max from 100 to 15 #555

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Revert: Reduce DB pool max from 100 to 15 #555

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7 changes: 2 additions & 5 deletions src/lib/drizzle.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -69,12 +69,9 @@ function getReplicaUrl(): string {
}

// Primary pool - always points to Frankfurt (writes go here)
// max: 15 — keep low because Vercel can spawn 100+ concurrent serverless instances,
// each with its own pool, all hitting the same pgbouncer. At max:100, a cold-start
// cascade can open 100×N connections simultaneously and overwhelm pgbouncer.
export const pool = new Pool({
...getDatabaseClientConfig(postgresUrl),
max: 15,
max: 100,
connectionTimeoutMillis: Number.parseInt(POSTGRES_CONNECT_TIMEOUT || '30000'),
idleTimeoutMillis: 3000,
application_name: appName,
Expand All @@ -87,7 +84,7 @@ export const usesSeparateReplica = replicaUrl !== postgresUrl;
const replicaPool = usesSeparateReplica
? new Pool({
...getDatabaseClientConfig(replicaUrl),
max: 15,
max: 100,
connectionTimeoutMillis: Number.parseInt(POSTGRES_CONNECT_TIMEOUT || '30000'),
idleTimeoutMillis: 3000,
application_name: `${appName}-replica`,
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