Attachment 869665 Details for Bug 696821 – !ConditionPathExists

!ConditionPathExists

!ConditionPathExists (text/plain), 8.92 KB, created by poma on 2014-03-02 17:05:28 UTC

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Creator: poma

Created: 2014-03-02 17:05:28 UTC

Size: 8.92 KB

patch

obsolete

>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
># /usr/lib/systemd/systemd --version
>systemd 210
>+PAM +LIBWRAP +AUDIT +SELINUX +IMA +SYSVINIT +LIBCRYPTSETUP +GCRYPT +ACL +XZ +SECCOMP -APPARMOR
>
># rpm -qf /usr/lib/systemd/systemd
>systemd-210-2.fc21.x86_64
>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
># systemctl status systemd-readahead-collect.service
>systemd-readahead-collect.service - Collect Read-Ahead Data
>   Loaded: loaded (/usr/lib/systemd/system/systemd-readahead-collect.service; enabled)
>   Active: active (exited) (Result: exit-code) since Sun 2014-03-02 16:20:05 CET; 9min ago
>     Docs: man:systemd-readahead-replay.service(8)
>  Process: 335 ExecStart=/usr/lib/systemd/systemd-readahead collect (code=exited, status=1/FAILURE)
> Main PID: 335 (code=exited, status=1/FAILURE)
>   Status: "Collecting readahead data"
>   CGroup: /system.slice/systemd-readahead-collect.service
>
>Mar 02 16:20:05 localhost.localdomain systemd[1]: Started Collect Read-Ahead Data.
>Mar 02 16:21:23 localhost.localdomain systemd[1]: systemd-readahead-collect.service: main process exited, code=exited, status=1/FAILURE
>
># systemctl restart systemd-readahead-collect.service
># systemctl status systemd-readahead-collect.service
>systemd-readahead-collect.service - Collect Read-Ahead Data
>   Loaded: loaded (/usr/lib/systemd/system/systemd-readahead-collect.service; enabled)
>   Active: failed (Result: exit-code) since Sun 2014-03-02 16:31:09 CET; 2s ago
>           start condition failed at Sun 2014-03-02 16:31:09 CET; 2s ago
>           ConditionPathExists=!/run/systemd/readahead/done was not met
>     Docs: man:systemd-readahead-replay.service(8)
>  Process: 335 ExecStart=/usr/lib/systemd/systemd-readahead collect (code=exited, status=1/FAILURE)
> Main PID: 335 (code=exited, status=1/FAILURE)
>   Status: "Collecting readahead data"
>
>Mar 02 16:20:05 localhost.localdomain systemd[1]: Started Collect Read-Ahead Data.
>Mar 02 16:21:23 localhost.localdomain systemd[1]: systemd-readahead-collect.service: main process exited, code=exited, status=1/FAILURE
>Mar 02 16:31:09 localhost.localdomain systemd[1]: Stopping Collect Read-Ahead Data...
>Mar 02 16:31:09 localhost.localdomain systemd[1]: Unit systemd-readahead-collect.service entered failed state.
>Mar 02 16:31:09 localhost.localdomain systemd[1]: Started Collect Read-Ahead Data.
>
># systemctl stop systemd-readahead-collect.service
># systemctl start systemd-readahead-collect.service
># systemctl status systemd-readahead-collect.service
>systemd-readahead-collect.service - Collect Read-Ahead Data
>   Loaded: loaded (/usr/lib/systemd/system/systemd-readahead-collect.service; enabled)
>   Active: failed (Result: exit-code) since Sun 2014-03-02 16:31:09 CET; 26s ago
>           start condition failed at Sun 2014-03-02 16:31:32 CET; 2s ago
>           ConditionPathExists=!/run/systemd/readahead/done was not met
>     Docs: man:systemd-readahead-replay.service(8)
>  Process: 335 ExecStart=/usr/lib/systemd/systemd-readahead collect (code=exited, status=1/FAILURE)
> Main PID: 335 (code=exited, status=1/FAILURE)
>   Status: "Collecting readahead data"
>
>Mar 02 16:20:05 localhost.localdomain systemd[1]: Started Collect Read-Ahead Data.
>Mar 02 16:21:23 localhost.localdomain systemd[1]: systemd-readahead-collect.service: main process exited, code=exited, status=1/FAILURE
>Mar 02 16:31:09 localhost.localdomain systemd[1]: Stopping Collect Read-Ahead Data...
>Mar 02 16:31:09 localhost.localdomain systemd[1]: Unit systemd-readahead-collect.service entered failed state.
>Mar 02 16:31:09 localhost.localdomain systemd[1]: Started Collect Read-Ahead Data.
>Mar 02 16:31:27 localhost.localdomain systemd[1]: Stopped Collect Read-Ahead Data.
>Mar 02 16:31:32 localhost.localdomain systemd[1]: Started Collect Read-Ahead Data.
>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>/usr/lib/systemd/system/systemd-readahead-collect.service:
>Wants=systemd-readahead-done.timer
>
># systemctl status systemd-readahead-done.timer
>systemd-readahead-done.timer - Stop Read-Ahead Data Collection 10s After Completed Startup
>   Loaded: loaded (/usr/lib/systemd/system/systemd-readahead-done.timer; static)
>   Active: active (elapsed) since Sun 2014-03-02 16:22:14 CET; 14min ago
>     Docs: man:systemd-readahead-replay.service(8)
>
>Mar 02 16:22:14 localhost.localdomain systemd[1]: Starting Stop Read-Ahead Data Collection 10s After Completed Startup.
>Mar 02 16:22:14 localhost.localdomain systemd[1]: Started Stop Read-Ahead Data Collection 10s After Completed Startup.
>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>http://www.freedesktop.org/software/systemd/man/systemd.unit.html
>...
>If the absolute path name passed to ConditionPathExists= is prefixed with an exclamation mark ("!"), the test is negated, and the unit is only started if the path does not exist.
>
>e.g.
>/usr/lib/systemd/system/systemd-readahead-collect.service:
>ConditionPathExists=!/run/systemd/readahead/cancel
>ConditionPathExists=!/run/systemd/readahead/done
>
># file /run/systemd/readahead/cancel
>/run/systemd/readahead/cancel: ERROR: cannot open `/run/systemd/readahead/cancel' (No such file or directory)
># file /run/systemd/readahead/done
>/run/systemd/readahead/done: empty
>
># rm /run/systemd/readahead/done
>rm: remove regular empty file â/run/systemd/readahead/doneâ? y
># file /run/systemd/readahead/done
>/run/systemd/readahead/done: ERROR: cannot open `/run/systemd/readahead/done' (No such file or directory)
>
># systemctl restart systemd-readahead-collect.service
># systemctl status systemd-readahead-collect.service
>systemd-readahead-collect.service - Collect Read-Ahead Data
>   Loaded: loaded (/usr/lib/systemd/system/systemd-readahead-collect.service; enabled)
>   Active: active (running) since Sun 2014-03-02 16:40:40 CET; 5s ago
>     Docs: man:systemd-readahead-replay.service(8)
> Main PID: 17582 (systemd-readahe)
>   Status: "Collecting readahead data"
>   CGroup: /system.slice/systemd-readahead-collect.service
>           ââ17582 /usr/lib/systemd/systemd-readahead collect
>
>Mar 02 16:40:40 localhost.localdomain systemd[1]: Started Collect Read-Ahead Data.
>
>http://cgit.freedesktop.org/systemd/systemd/tree/src/readahead/sd-readahead.c#n84
>                return touch("/run/systemd/readahead/done");
>
># cp /usr/lib/systemd/system/systemd-readahead-collect.service /etc/systemd/system/
>
># diff /usr/lib/systemd/system/systemd-readahead-collect.service /etc/systemd/system/systemd-readahead-collect.service 
>16c16
>< ConditionPathExists=!/run/systemd/readahead/done
>---
>> ConditionPathExists=/run/systemd/readahead/done
>
># systemctl reenable systemd-readahead-collect.service
>rm '/etc/systemd/system/system-update.target.wants/systemd-readahead-drop.service'
>rm '/etc/systemd/system/default.target.wants/systemd-readahead-collect.service'
>ln -s '/etc/systemd/system/systemd-readahead-collect.service' '/etc/systemd/system/default.target.wants/systemd-readahead-collect.service'
>ln -s '/usr/lib/systemd/system/systemd-readahead-drop.service' '/etc/systemd/system/system-update.target.wants/systemd-readahead-drop.service'
>
>============================== REBOOT ==============================
>
># systemctl status systemd-readahead-collect.service
>systemd-readahead-collect.service - Collect Read-Ahead Data
>   Loaded: loaded (/etc/systemd/system/systemd-readahead-collect.service; enabled)
>   Active: inactive (dead)
>           start condition failed at Sun 2014-03-02 16:59:09 CET; 2min 4s ago
>           ConditionPathExists=/run/systemd/readahead/done was not met
>     Docs: man:systemd-readahead-replay.service(8)
>
># file /run/systemd/readahead/done
>/run/systemd/readahead/done: empty
>
># diff /usr/lib/systemd/system/systemd-readahead-collect.service /etc/systemd/system/systemd-readahead-collect.service
>16d15
>< ConditionPathExists=!/run/systemd/readahead/done
>
># systemctl daemon-reload
>
>============================== REBOOT ==============================
>
># systemctl status systemd-readahead-collect.service
>systemd-readahead-collect.service - Collect Read-Ahead Data
>   Loaded: loaded (/etc/systemd/system/systemd-readahead-collect.service; enabled)
>   Active: active (exited) since Sun 2014-03-02 17:31:02 CET; 1min 24s ago
>     Docs: man:systemd-readahead-replay.service(8)
>  Process: 336 ExecStart=/usr/lib/systemd/systemd-readahead collect (code=exited, status=0/SUCCESS)
> Main PID: 336 (code=exited, status=0/SUCCESS)
>   Status: "Collecting readahead data"
>
>Mar 02 17:31:02 localhost.localdomain systemd[1]: Started Collect Read-Ahead Data.
>
>============================== CONCLUSIO ==============================
>
>ConditionPathExists=[!]/run/systemd/readahead/done == ConditionPathExists=!Conditio sine qua non
>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>/usr/lib/systemd/system/systemd-readahead-collect.service:
>ConditionVirtualization=no
>
># /usr/bin/systemd-detect-virt
>none
>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>

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Attachments on bug 696821: 869665 | 869697 | 889396 | 915327