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main: dump history by default

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Always write the measurement history on exit when the dump directory is
specified and silently ignore the dumponexit directive. There doesn't
seem to be a good use case for dumpdir and -r without dumponexit as the
history would be invalidated by adjustments of the clock that happened
between the dump command and chronyd exit.
This commit is contained in:
Miroslav Lichvar
2017-03-08 10:45:20 +01:00
parent 539ef3f770
commit f3a16383b9
5 changed files with 11 additions and 37 deletions
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16
doc/chronyc.adoc
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@@ -1118,17 +1118,11 @@ purged. An example of how to do this is shown below.
[[dump]]*dump*::
The *dump* command causes *chronyd* to write its current history of
measurements for each of its sources to dump files, either for inspection or to
support the *-r* option when *chronyd* is restarted.
+
The *dump* command is somewhat equivalent to the
<<chrony.conf.adoc#dumponexit,*dumponexit*>> directive in the configuration
file.
+
To use the *dump* command, you might want to configure the name of the
directory into which the dump files will be written. This can only be
done in the configuration file with the <<chrony.conf.adoc#dumpdir,*dumpdir*>>
directive.
measurements for each of its sources to dump files in the directory specified
in the configuration file by the <<chrony.conf.adoc#dumpdir,*dumpdir*>>
directive. Note that *chronyd* does this automatically when it exits. This
command is mainly useful for inspection of the history whilst *chronyd* is
running.
[[rekey]]*rekey*::
The *rekey* command causes *chronyd* to re-read the key file specified in the