log: Mitigate disk filling attacks by rate limiting LogPrintf, LogInfo, LogWarning, LogError
Summary:
Each source code location is given an hourly logging quota of 1MiB of logging per hour. Logging is only dropped from source locations that exceed the quota. - Only logging to disk is rate limited. Logging to console is not rate limited. - Printing with the category argument is not rate limited. - UpdateTip: new best=[…] is logged without rate limiting. High log volume is expected for that source location during IBD. - When logging is restarted a tally of how many bytes were dropped is printed. - All logs will be prefixed with [*] if there is at least one source location that is currently being suppressed.
Backport of core#32604.
Depends on D18875.
Test Plan:
ninja all check-all
Reviewers: #bitcoin_abc, PiRK
Reviewed By: #bitcoin_abc, PiRK
Subscribers: PiRK
Differential Revision: https://reviews.bitcoinabc.org/D18881