并发的大型删除操作在 NodeJS 中挂起
Concurrent large delete operations hang in NodeJS
我在 Centos 7.2 服务器上的 NodeJS 应用程序 运行 中有一个工作区清理功能,它获取目录路径列表并将其删除。当函数接收到路径列表时,它使用 Promise.all()
通过以下方式同时执行这些删除:
/**
* Deletes directories.
*
* @param {Array} directories Array of directories to be deleted.
*
* @returns {Object} Response object with the status code and data.
*/
const cleanup = async (directories) => {
if (!Array.isArray(directories)) {
return await responseStatementHandler(
400,
`Provide a list of directories as an array - [dir1, dir2].`,
null,
console.error
);
}
if (!directories.length > 0) {
return await responseStatementHandler(
400,
`Directory list cannot be empty.`,
null,
console.error
);
}
try {
const promisesList = await Promise.all(
directories.map((d) => deleteDirectory(d))
);
return await responseStatementHandler(
207,
await promisesList,
null,
console.log
);
} catch (err) {
return await responseStatementHandler(
500,
`Directory cleanup failed.`,
err,
console.error
);
}
};
/**
* Performs a force delete on a provided directory.
*
* @param {String} directory Path of the directory to be deleted.
*
* @returns {Object} Response object with the status code and data.
*/
const deleteDirectory = async (directory) => {
console.log(`Deleting directory: ${directory}`);
try {
if ((await fs.stat(directory)).isDirectory()) {
await fs.rm(directory, { recursive: true, force: true });
return await generateIndividualResponseObj(
directory,
200,
`Successfully deleted directory: ${directory}`,
null,
console.log
);
}
} catch (err) {
if (err.message.includes("no such file or directory")) {
return await generateIndividualResponseObj(
directory,
404,
`Could not find directory: ${directory}`,
null,
console.error
);
}
return await generateIndividualResponseObj(
directory,
500,
`Failed to delete directory: ${directory}`,
err,
console.error
);
}
};
这里的问题是目录很大;大小约 1G。所以当有多个这样的删除时(>10 所以>10G),操作就挂了。
我知道这是因为只要我手动删除目录,应用程序就可以正常运行。
这是 fs
模块的限制还是逻辑编写方式的限制?在这种情况下,删除操作超时会有帮助吗?如果是这样,我将如何使用 fs
模块实现这样的超时?
这里的问题与 Node.js 无关。服务器的硬盘驱动器速度很慢,执行大量删除操作需要很长时间。应用程序只是在等待删除过程完成,并没有挂起。使用更快的存储连接服务器解决了这个问题。
我在 Centos 7.2 服务器上的 NodeJS 应用程序 运行 中有一个工作区清理功能,它获取目录路径列表并将其删除。当函数接收到路径列表时,它使用 Promise.all()
通过以下方式同时执行这些删除:
/**
* Deletes directories.
*
* @param {Array} directories Array of directories to be deleted.
*
* @returns {Object} Response object with the status code and data.
*/
const cleanup = async (directories) => {
if (!Array.isArray(directories)) {
return await responseStatementHandler(
400,
`Provide a list of directories as an array - [dir1, dir2].`,
null,
console.error
);
}
if (!directories.length > 0) {
return await responseStatementHandler(
400,
`Directory list cannot be empty.`,
null,
console.error
);
}
try {
const promisesList = await Promise.all(
directories.map((d) => deleteDirectory(d))
);
return await responseStatementHandler(
207,
await promisesList,
null,
console.log
);
} catch (err) {
return await responseStatementHandler(
500,
`Directory cleanup failed.`,
err,
console.error
);
}
};
/**
* Performs a force delete on a provided directory.
*
* @param {String} directory Path of the directory to be deleted.
*
* @returns {Object} Response object with the status code and data.
*/
const deleteDirectory = async (directory) => {
console.log(`Deleting directory: ${directory}`);
try {
if ((await fs.stat(directory)).isDirectory()) {
await fs.rm(directory, { recursive: true, force: true });
return await generateIndividualResponseObj(
directory,
200,
`Successfully deleted directory: ${directory}`,
null,
console.log
);
}
} catch (err) {
if (err.message.includes("no such file or directory")) {
return await generateIndividualResponseObj(
directory,
404,
`Could not find directory: ${directory}`,
null,
console.error
);
}
return await generateIndividualResponseObj(
directory,
500,
`Failed to delete directory: ${directory}`,
err,
console.error
);
}
};
这里的问题是目录很大;大小约 1G。所以当有多个这样的删除时(>10 所以>10G),操作就挂了。
我知道这是因为只要我手动删除目录,应用程序就可以正常运行。
这是 fs
模块的限制还是逻辑编写方式的限制?在这种情况下,删除操作超时会有帮助吗?如果是这样,我将如何使用 fs
模块实现这样的超时?
这里的问题与 Node.js 无关。服务器的硬盘驱动器速度很慢,执行大量删除操作需要很长时间。应用程序只是在等待删除过程完成,并没有挂起。使用更快的存储连接服务器解决了这个问题。