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@deeTEEcee
Last active March 25, 2021 16:11
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Basic Developer Knowledge
### Databases
* One does not need to add database indexes for every field. I think one way of thinking about it is use the ones that people are querying that don't also already have indexes. If there is a multi-field query that's commonly used and there's already indexes, you probably don't need to add another index for a new field you add since that query already narrows it down for you. (There's a lot more to read to understand this)
#### Internal
* SSD's vs Hard Disk
*
* Writes have problems on both sides.
* Access Patterns - Sequential vs. Random
Links
* https://www.youtube.com/watch?v=wxcCHvQeZ-U
### Memory issues
* Machine Limitations (in linux, for example) could take precedence over JVM, leading to issues like processes being killed without you knowing about it.
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