Advantages and disadvantages of JSON vs CSV in data storage

JSON and CSV in the end how to choose? The old driver of the crawler said this

Brothers engaged in data collection should have encountered this kind of entanglement: climb down the proxy IP data with JSON storage or CSV storage? Today we will take ipipgo platform data management experience to nag about this matter.

I. Structural complexity formatting

If you're using proxy IP data.With multi-layer nested information, for example, like this:
{"ip": "1.1.1.1", "location":{"country": "Singapore", "ASN": "AS1234"}, "response_time":[56,59,61]}
This time must use JSON, CSV that flat table format simply can not fit this kind ofTree-structured dataThe API return data of ipipgo is exclusively in JSON format, after all, it has to contain a dozen parameters such as IP type, available status, geographic location and so on.

Second, the data magnitude looks at the volume

Anyone who has done a stress test knows that when a single day of collectionBreaking into the millionsThe volume advantage of CSV is obvious when you are using it. We've compared it with real data:

If you're using ipipgo.Dynamic Proxy ServiceIt is recommended to use CSV to store the IP pool list, which can be loaded more than 3 times faster.

III. Data-processing flexibility

JSON is really convenient to parse in the program, but changing a field name will require a full update. Last time we adjusted ipipgo's node status identifiers, we used CSV to directly replace a table header and we were done, and JSON had to write a regular batch replacement.Almost made the Ops guy bald.The

IV. Comparison of human readability

When you show the data to your operation colleagues, CSV can be opened in Excel with a double click, and JSON still has to be installed with a parsing tool. But now ipipgo's management background didDual format supportThis really saves you a lot of time, as you can switch which format you need to download at any time.

QA time

Q: Which format should I choose when collecting with proxy IP?
A: Need complete metadata with JSON, as long as the basic information with CSV. like ipipgo's IP availability monitoring data, we recommend using CSV to store timestamp + IP + response time three columns is enough.

Q: Will data be lost when converting between the two formats?
A: Multi-layer nested data to CSV will certainly lose structure, it is recommended to use the ipipgo provided by theFormat Conversion ToolsThe JSON can be automatically expanded into a multi-column CSV with the geographic information in the JSON.

Q: What should I do if I have to deal with 10G+ proxy IP data every day?
A: Don't get hung up on the format at this point, just go straight to ipipgo'sCloud Database Synchronization ServiceThe original data is automatically dumped to a specified format, and you can also set up automatic de-duplication rules.

Finally, to be perfectly honest, format selection is as much a matter ofwear shoesIt depends on the business scenario. Anyway, with ipipgo's proxy service, the data can be exported in one click and cut the format, which can save a lot of effort. Especially when doing distributed collection, flexible switching data format can really pull the efficiency.