+++ name = "dolt-log-rotate" description = "Rotate Dolt server log file when it exceeds size threshold" version = 1

[gate] type = "cooldown" duration = "6h"

[tracking] labels = ["plugin:dolt-log-rotate", "category:maintenance"] digest = true

[execution] timeout = "2m" notify_on_failure = true severity = "medium" +++

Dolt Log Rotate

The Dolt server writes stdout/stderr to daemon/dolt.log. This file can grow to multiple gigabytes and cause disk pressure or slow gt dolt logs.

This plugin checks the log size every 6 hours and rotates when it exceeds 100MB (configurable via GT_DOLT_LOG_MAX_MB). Keeps 3 compressed rotated copies.

Rotation is safe while Dolt is running — the server holds an open file descriptor, so renaming the log and creating a new one works (Unix fd semantics). However, new log output continues to the old fd until Dolt is restarted. To redirect output to the new file, the plugin sends SIGHUP (if supported) or notes that full rotation completes on next Dolt restart.