mirror of
https://github.com/matrix-construct/construct
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22 lines
954 B
Markdown
22 lines
954 B
Markdown
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# TROUBLESHOOTING
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##### Recovering from broken configurations
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If your server ever fails to start from an errant conf item: you can override
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any item using an environmental variable before starting the program. To do
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this simply replace the '.' characters with '_' in the name of the item when
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setting it in the environment. The name is otherwise the same, including its
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lower case.
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##### Recovering from database corruption
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In very rare cases after a hard crash the journal cannot completely restore
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data before the crash. Due to the design of rocksdb and the way we apply it
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for Matrix, data is lost in chronological order starting from the most recent
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transaction (matrix event). The database is consistent for all events up until
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the first corrupt event, called the point-in-time.
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When any loss has occurred the daemon will fail to start normally. To enable
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point-in-time recovery use the command-line option `-pitrecdb` at the next
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invocation.
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