36 lines
2.2 KiB
Markdown
36 lines
2.2 KiB
Markdown
## CDN
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CDN is a long-running process which caches downloaded data from source to avoid downloading the same files from source repeatedly
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## Try it
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```
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go run cmd/cdnsystem/main.go [Option]
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```
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## Log configuration
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set environment variable DF_ACTIVE_PROFILE=local if you want to print logs to Terminal
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## Runtime metrics monitoring
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```
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go run cmd/cdnsystem/main.go --profiler
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```
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### Options
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```
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--advertise-ip string the cdn node ip is the ip we advertise to other peers in the p2p-network
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--clean-ratio int CleanRatio is the ratio to clean the disk and it is based on 10. the value of CleanRatio should be [1-10] (default 1)
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--config string the path of cdn configuration file (default "/etc/dragonfly/cdn.yaml")
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--download-port int downloadPort is the port for download files from cdnNode (default 8001)
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--fail-access-interval duration fail access interval is the interval time after failed to access the URL (default 3m0s)
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--gc-disk-interval duration gc disk interval is the interval time to execute GC disk. (default 15s)
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--gc-initial-delay duration gc initial delay is the delay time from the start to the first GC execution (default 6s)
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--gc-meta-interval duration gc meta interval is the interval time to execute the GC meta (default 2m0s)
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-h, --help help for cdn
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--home-dir string homeDir is the working directory of cdnNode (default "/Users/su*__*nweipeng1/cdn-system")
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--max-bandwidth rate network rate that cdnNode can use (default 200MB)
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--port int listenPort is the port that cdn server listens on (default 8003)
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--profiler profiler sets whether cdnNode HTTP server setups profiler
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--system-bandwidth rate network rate reserved for system (default 20MB)
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--task-expire-time duration task expire time is the time that a task is treated expired if the task is not accessed within the time (default 3m0s)
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--young-gc-threshold file-size gc disk interval is the interval time to execute GC disk. (default 100GB)
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```
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