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fix fallback servers

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ld3zian 2025-03-03 16:04:16 -07:00
parent 8e7a3af051
commit 8e6ea73460
1 changed files with 44 additions and 12 deletions
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56
src/lib/db.ts
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@ -284,19 +284,51 @@ export async function checkCacheStatus(slugs: string[], lang: string): Promise<s
}
export async function getFeedMapping(feedId: string): Promise<FeedMapping | null> {
const redis = await getRedisClient();
// First try primary
try {
const mapping = await redis.get(feedId);
if (!mapping) return null;
await redis.expire(feedId, DEFAULT_CACHE_TTL);
const data = JSON.parse(mapping);
return {
slugs: data.slugs,
lang: data.lang
};
if (primaryClient?.status === 'ready') {
try {
await primaryClient.ping();
const mapping = await primaryClient.get(feedId);
if (mapping) {
await primaryClient.expire(feedId, DEFAULT_CACHE_TTL);
const data = JSON.parse(mapping);
return {
slugs: data.slugs,
lang: data.lang
};
}
// If key not found in primary, we'll fall through to try replicas
} catch (error) {
console.warn('Primary Redis connection failed while retrieving mapping:', error);
// Fall through to try replicas
}
}
// Try replicas one by one
for (const [url, client] of replicaClients.entries()) {
if (client.status === 'ready') {
try {
await client.ping();
console.log(`Trying to get key from ${getRedisName(url)}`);
const mapping = await client.get(feedId);
if (mapping) {
await client.expire(feedId, DEFAULT_CACHE_TTL);
const data = JSON.parse(mapping);
return {
slugs: data.slugs,
lang: data.lang
};
}
} catch (error) {
console.warn(`${getRedisName(url)} connection failed while retrieving mapping:`, error);
// Continue to next replica
}
}
}
// If we get here, the key wasn't found in any database
return null;
} catch (error) {
console.error('Error retrieving feed mapping:', error);
throw new Error('Failed to retrieve feed mapping');