bd3a6b1b33
* glog: add --log_rotate_hours flag for time-based log rotation SeaweedFS previously only rotated log files when they reached MaxSize (1.8 GB). Long-running deployments with low log volume could accumulate log files indefinitely with no way to force rotation on a schedule. This change adds the --log_rotate_hours flag. When set to a non-zero value, the current log file is rotated once it has been open for the specified number of hours, regardless of its size. Implementation details: - New flag --log_rotate_hours (int, default 0 = disabled) in glog_file.go - Added createdAt time.Time field to syncBuffer to track file open time - rotateFile() sets createdAt to the time the new file is opened - Write() checks elapsed time and triggers rotation when the threshold is exceeded, consistent with the existing size-based check This resolves the long-standing request for time-based rotation and helps prevent unbounded log accumulation in /tmp on production systems. Related: #3455, #5763, #8336 * glog: default log_rotate_hours to 168 (7 days) Enable time-based rotation by default so log files don't accumulate indefinitely in long-running deployments. Set to 0 to disable. * glog: simplify rotation logic by combining size and time conditions Merge the two separate rotation checks into a single block to eliminate duplicated rotateFile error handling. * glog: use timeNow() in syncBuffer.Write and add time-based rotation test Use the existing testable timeNow variable instead of time.Now() in syncBuffer.Write so that time-based rotation can be tested with a mocked clock. Add TestTimeBasedRollover that verifies: - no rotation occurs before the interval elapses - rotation triggers after the configured hours --------- Co-authored-by: Copilot <copilot@github.com>
glog
====
Leveled execution logs for Go.
This is an efficient pure Go implementation of leveled logs in the
manner of the open source C++ package
http://code.google.com/p/google-glog
By binding methods to booleans it is possible to use the log package
without paying the expense of evaluating the arguments to the log.
Through the -vmodule flag, the package also provides fine-grained
control over logging at the file level.
The comment from glog.go introduces the ideas:
Package glog implements logging analogous to the Google-internal
C++ INFO/ERROR/V setup. It provides functions Info, Warning,
Error, Fatal, plus formatting variants such as Infof. It
also provides V-style logging controlled by the -v and
-vmodule=file=2 flags.
Basic examples:
glog.Info("Prepare to repel boarders")
glog.Fatalf("Initialization failed: %s", err)
See the documentation for the V function for an explanation
of these examples:
if glog.V(2) {
glog.Info("Starting transaction...")
}
glog.V(2).Infoln("Processed", nItems, "elements")
The repository contains an open source version of the log package
used inside Google. The master copy of the source lives inside
Google, not here. The code in this repo is for export only and is not itself
under development. Feature requests will be ignored.
Send bug reports to golang-nuts@googlegroups.com.