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| author | Björn-Egil Dahlberg <[email protected]> | 2012-10-15 16:22:47 +0200 |
|---|---|---|
| committer | Björn-Egil Dahlberg <[email protected]> | 2012-10-18 16:57:34 +0200 |
| commit | e6ea3b07e25b09481b010558f8bfdfb57dcbb85e (patch) | |
| tree | 8135c9c6b0c6578cffda120f6ce8fe3612492d03 /erts/doc | |
| parent | 30152914f61a1693fd17a2a4bcf36f8df96b7692 (diff) | |
| download | otp-e6ea3b07e25b09481b010558f8bfdfb57dcbb85e.tar.gz otp-e6ea3b07e25b09481b010558f8bfdfb57dcbb85e.tar.bz2 otp-e6ea3b07e25b09481b010558f8bfdfb57dcbb85e.zip | |
doc: Document ERL_CRASH_DUMP_SECONDS behaviour
* heart reboot behaviour
* erl_crash.dump file write behaviour
Diffstat (limited to 'erts/doc')
| -rw-r--r-- | erts/doc/src/erl.xml | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml index 2dea477d99..f931445a3e 100644 --- a/erts/doc/src/erl.xml +++ b/erts/doc/src/erl.xml @@ -1040,6 +1040,37 @@ the emulator will be allowed to spend writing a crash dump. When the given number of seconds have elapsed, the emulator will be terminated by a SIGALRM signal.</p> + + <p> If the environment variable is <em>not</em> set or it is set to zero seconds, <c><![CDATA[ERL_CRASH_DUMP_SECONDS=0]]></c>, + the runtime system will not even attempt to write the crash dump file. It will just terminate. + </p> + <p> If the environment variable is set to negative valie, e.g. <c><![CDATA[ERL_CRASH_DUMP_SECONDS=-1]]></c>, + the runtime system will wait indefinitely for the crash dump file to be written. + </p> + <p> This environment variable is used in conjuction with + <seealso marker="kernel:heart"><c>heart</c></seealso> if <c>heart</c> is running: + </p> + <taglist> + <tag><c><![CDATA[ERL_CRASH_DUMP_SECONDS=0]]></c></tag> + <item><p> + Suppresses the writing a crash dump file entirely, + thus rebooting the runtime system immediately. + This is the same as not setting the environment variable. + </p> + </item> + <tag><c><![CDATA[ERL_CRASH_DUMP_SECONDS=-1]]></c></tag> + <item><p>Setting the environment variable to a negative value will cause the + termination of the runtime system to wait until the crash dump file + has been completly written. + </p> + </item> + <tag><c><![CDATA[ERL_CRASH_DUMP_SECONDS=S]]></c></tag> + <item><p> + Will wait for <c>S</c> seconds to complete the crash dump file and + then terminate the runtime system. + </p> + </item> + </taglist> </item> <tag><c><![CDATA[ERL_AFLAGS]]></c></tag> <item> |