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0db4d555e9
When FRR starts, after mgmtd is initialized, backend clients connect to it and request their config. To supply the config, mgmtd creates a configuration transaction. At the same time, `vtysh -b` tries to read the startup config and configure mgmtd, which also creates a configuration transaction. If these two actions happen at the exact same time, there's a conflict between them, because only a single configuration translaction is allowed. Because of that, vtysh fails and the config is completely ignored. When starting the config reading, vtysh locks candidate and running datastores in mgmtd. This commit adds locking of running datastore when initializing the backend client. It allows to retry locking on the vtysh side and read the config only when the lock is aquired instead of failing. This change also prevents running datastore from being changed during initialization of backend clients. This could lead to a desynchronized state between mgmtd and backends. Signed-off-by: Igor Ryzhov <iryzhov@nfware.com> |
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| .. | ||
| .gitignore | ||
| daemons.pl | ||
| Makefile | ||
| subdir.am | ||
| vtysh_config.c | ||
| vtysh_main.c | ||
| vtysh_user.c | ||
| vtysh_user.h | ||
| vtysh.c | ||
| vtysh.h | ||