[WIP] Resolve the PreStartHook failure caused by the slow startup of fuse container #4456
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Signed-off-by: jiuyu <guotongyu.gty@alibaba-inc.com>
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cheyang
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Dec 24, 2024
| // https://github.com/kubernetes/kubernetes/issues/25766 | ||
| cmd := []string{"bash", "-c", fmt.Sprintf("time %s %s %s >> /proc/1/fd/1", appScriptPath, mountPaths, mountTypes)} | ||
| // https://github.com/fluid-cloudnative/fluid/issues/4455 | ||
| cmd := []string{"bash", "-c", fmt.Sprintf("while [ ! -e /proc/1/fd/1 ]; do sleep 1; done; bash -c 'time %s %s %s >> /proc/1/fd/1'", appScriptPath, mountPaths, mountTypes)} |
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I suggest adding a timeout to avoid potential infinite loops in case of unexpected conditions.
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Fixes #4455
The following postStartHook will be injected in the fuse-sidecar to check the mount status.
However, the startup of the Container and the execution of the PostStartHook occur in parallel. it is possible that when the PostStartHook is executed, the PID 1 process inside the container has not completed its startup. This can lead to a failure in redirecting to /proc/1/fd/1 when the PostStartHook runs the check-mount script.