Write concerns

Write concerns refer to the rules and settings that determine how a system handles data storage and confirmation when information is written to a database. They ensure that the data is saved reliably and consistently. For example, a stronger write concern means the system waits for a confirmation that the data is stored correctly on multiple servers, enhancing safety but possibly slowing down responses. Conversely, a weaker write concern may prioritize speed over reliability, confirming data storage after only one server holds it. Striking the right balance is key for performance and data integrity.