Compression
Automatically compress log files when they rotate to save disk space.
GZIP Compression
python
from logly import logger
sink_id = logger.add("app.log", rotation="daily", compression="gzip")
logger.info("Rotated files will be .gz compressed")
logger.complete()
logger.remove(sink_id)ZIP Compression
python
from logly import logger
sink_id = logger.add("app.log", rotation="daily", compression="zip")
logger.info("Rotated files will be .zip compressed")
logger.complete()
logger.remove(sink_id)BZ2 Compression
python
from logly import logger
sink_id = logger.add("app.log", rotation="daily", compression="bz2")
logger.info("Rotated files will be .bz2 compressed")
logger.complete()
logger.remove(sink_id)XZ Compression
python
from logly import logger
sink_id = logger.add("app.log", rotation="daily", compression="xz")
logger.info("Rotated files will be .xz compressed")
logger.complete()
logger.remove(sink_id)Zstandard Compression
python
from logly import logger
sink_id = logger.add("app.log", rotation="daily", compression="zstd")
logger.info("Rotated files will be .zst compressed")
logger.complete()
logger.remove(sink_id)All Compression Formats
python
from logly import logger
sink_id1 = logger.add("gzip.log", rotation="daily", compression="gzip")
sink_id2 = logger.add("zip.log", rotation="daily", compression="zip")
sink_id3 = logger.add("bz2.log", rotation="daily", compression="bz2")
sink_id4 = logger.add("xz.log", rotation="daily", compression="xz")
sink_id5 = logger.add("zstd.log", rotation="daily", compression="zstd")
logger.info("All compression formats supported")
logger.complete()
logger.remove(sink_id1)
logger.remove(sink_id2)
logger.remove(sink_id3)
logger.remove(sink_id4)
logger.remove(sink_id5)Combined with Size Rotation
python
from logly import logger
sink_id = logger.add(
"logs/app.log",
rotation="50 MB",
retention=30,
compression="gzip",
)
logger.info("Size rotation + 30-day retention + gzip")
logger.complete()
logger.remove(sink_id)Combined with Time Rotation
python
from logly import logger
sink_id = logger.add(
"logs/app.log",
rotation="daily",
retention="30 days",
compression="zstd",
)
logger.info("Daily rotation + 30-day retention + zstd")
logger.complete()
logger.remove(sink_id)Compression with Clock Rotation
python
from logly import logger
sink_id = logger.add(
"logs/app.log",
rotation="02:00", # rotate at 2 AM
retention=14,
compression="gzip",
)
logger.info("Clock rotation + 14-day retention + gzip")
logger.complete()
logger.remove(sink_id)Compression with Weekday Rotation
python
from logly import logger
sink_id = logger.add(
"logs/app.log",
rotation="weekly", # rotate every Monday
retention=8, # keep 8 weeks
compression="bz2",
)
logger.info("Weekly rotation + 8-week retention + bz2")
logger.complete()
logger.remove(sink_id)No Compression
python
from logly import logger
sink_id = logger.add(
"app.log",
rotation="daily",
compression="none", # explicitly disable compression
)
logger.info("Rotated files will not be compressed")
logger.complete()
logger.remove(sink_id)Disk I/O
Compression adds CPU overhead at rotation time. Use it with time or size rotation, not with retention=0.