Re: [systemd-devel] [PATCH] [RFCv6] Add sync timer to journal server
On Sat, Mar 23, 2013 at 05:27:46PM +0200, Oleksii Shevchuk wrote: Add option to force journal sync with fdatasync. Disabled by default. Hi Oleksii, why is it off by default? Interval configured via SyncIntervalSec option at journal.conf. Synced journal files will be marked as OFFLINE. Manual sync can be performed via sending SIGUSR1. --- man/journald.conf.xml| 9 +++ src/journal/journal-file.c | 61 src/journal/journal-file.h | 2 + src/journal/journald-gperf.gperf | 1 + src/journal/journald-server.c| 117 +-- src/journal/journald-server.h| 6 ++ src/journal/journald.conf| 1 + 7 files changed, 181 insertions(+), 16 deletions(-) diff --git a/man/journald.conf.xml b/man/journald.conf.xml index 0797deb..f2d2806 100644 --- a/man/journald.conf.xml +++ b/man/journald.conf.xml @@ -322,6 +322,15 @@ seconds. /para/listitem /varlistentry + +varlistentry + termvarnameSyncIntervalSec=/varname/term + +listitemparaThe maximum time to +commit new journal data to disk. Disabled by +default/para/listitem Could you add an explanation how this is changes behaviour during crashes? Zbyszek ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] [PATCH] [RFCv6] Add sync timer to journal server
Add option to force journal sync with fdatasync. Disabled by default. Hi Oleksii, why is it off by default? Hi Zbyszek, After discussion i am unsure about defaults for that option. Maybe only who cares should enable it? ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] [PATCH] [RFCv6] Add sync timer to journal server
On Sat, Mar 23, 2013 at 09:26:59PM +0200, Oleksii Shevchuk wrote: Add option to force journal sync with fdatasync. Disabled by default. Hi Oleksii, why is it off by default? Hi Zbyszek, After discussion i am unsure about defaults for that option. Maybe only who cares should enable it? IIUC, the point of this patch is to avoid losing the journal after a crash during the time when journal is idle. This seems like a generally desirable property. So we should make it work (without too much overhead) for the majority of hardware/logging-intensity/power-saving-rules configurations, and enable it by default. On IRC Kay suggested 1-5 min. I think that this sounds about right. Once the patch is in, I guess we can gather some statistics from people and tune the settings. Zbysze ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
