Add bpf log doc. #43
Add bpf log doc. #43
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Signed-off-by: kangmingfa <[email protected]>
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| ## Enable dataplane bpf log | |||
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@bfforever Would you update the design as we talked, if so this need update
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I will update next week.
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ping bfforever |
| ``` | ||
| cat /sys/kernel/debug/tracing/trace_pipe | ||
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| Otherwise, we can view the bpf log in kemsh daemon process. |
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| Otherwise, we can view the bpf log in kemsh daemon process. | |
| Otherwise, we can view the bpf log in Kmesh daemon process. |
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| ## Enable dataplane bpf log | |||
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| For current kmesh ebpf log, if kernel version is < 5.13, it only supports bpf log in tracepipe, else will support dump bpf log to userspace in kmesh daemon process. | |||
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Please use Kmesh uniformly, with the first letter capitalized.
| ## Enable dataplane bpf log | ||
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| For current kmesh ebpf log, if kernel version is < 5.13, it only supports bpf log in tracepipe, else will support dump bpf log to userspace in kmesh daemon process. | ||
| So in order to print log in kemsh dataplane, enable different log level for your need. Support 4 bpf log level: |
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| So in order to print log in kemsh dataplane, enable different log level for your need. Support 4 bpf log level: | |
| So in order to print log in Kmesh dataplane, enable different log level for your need. Support 4 bpf log level: |
| Currently default bpf log level is BPF_LOG_ERR, we can change bpf log level in every node by using below command, for example, 3 represents enable BPF_LOG_DEBUG log level: | ||
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| ``` | ||
| kubectl exec ds/kmesh -n kmesh-system -- curl -s localhost:15200/debug/bpfLogLevel/3 |
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Could we use a more readable format? like curl -s localhost:15200/debug/bpfLogLevel?level=debug
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@bfforever can you update this PR? |
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This is now unneeded, we have kmeshctl to set bpf log level |
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