Write Ahead Log + Understanding postgresql.conf: checkpoint_segments, checkpoint_timeout, checkpoint_warning

While there are some docs on it, I decided to write about it, in perhaps more accessible language – not as a developer, but as PostgreSQL user.

Some parts (quite large parts) were described in one of my earlier posts, but I'll try to concentrate on WAL itself, and show a bit more in here.

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Understanding postgresql.conf : log*

After loooong pause, adding next (well, second) post to the “series“. This time, I'd like to describe how logging works. And I don't mean binary logging (WAL), but the log for us, humans, to read.

Before I will go to the postgresql.conf options, let me first describe what happens when PostgreSQL wants to log something.

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Understanding postgresql.conf : checkpoint_completion_target

Starting new blog series – explanation of various configuration parameters.

I will of course follow no schedule or order – if I'd had to – it would be my job, and in this way – it's fun.

First configuration parameter to write about is checkpoint_completion_target.

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