节点的问题"/>
数据库迁移mongo db express节点的问题
我最近将新字段添加到我的用户模型中,如下所示
{fingerprint: { type: String, index: true }
现在我想做数据库迁移,这样我数据库中的旧用户也可以拥有指纹。以下是我如何努力实现这一目标
const updateFingerprintsForExistingUsers = async () => {
try {
const batchSize = 5;
const users = await User.find({ fingerprint: { $exists: false } })
.select("+fingerprint")
.batchSize(batchSize)
.maxTimeMS(100000);
console.log(users);
for (const user of users) {
const fingerprintData = generateFingerprint({
headers: {
"user-agent": user.userAgent,
},
connection: {
remoteAddress: user.clientIP,
},
});
user.fingerprint = fingerprintData.fingerprint;
await user.save();
}
console.log("Fingerprints updated for all existing users.");
} catch (error) {
console.error("Error updating fingerprints:", error);
}
};
但我不断收到此错误
Error updating fingerprints: MongooseError: Operation `users.find()` buffering timed out after 10000ms
at Timeout.<anonymous> (C:\Users\cross\Desktop\educ\educompanion\node_modules\mongoose\lib\drivers\node-mongodb-native\collection.js:198:23)
at listOnTimeout (node:internal/timers:557:17)
at processTimers (node:internal/timers:500:7)
我已经在代码上尝试了几件事,正如你在上面看到的那样
- 使用批量大小
- 增加最大超时时间
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数据库迁移mongo db express节点的问题
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