From: "Derrick Stolee via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: gitster@pobox.com, sandals@crustytoothpaste.net,
lenaic@lhuard.fr, Derrick Stolee <derrickstolee@github.com>,
Derrick Stolee <derrickstolee@github.com>
Subject: [PATCH 4/6] maintenance: use random minute in cron scheduler
Date: Mon, 07 Aug 2023 18:51:38 +0000 [thread overview]
Message-ID: <3ef3cf0861ffcb86dc8dbb075a17265d4c23d3fc.1691434300.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.1567.git.1691434300.gitgitgadget@gmail.com>
From: Derrick Stolee <derrickstolee@github.com>
The get_random_minute() method was created to allow maintenance
schedules to be fixed to a random minute of the hour. This randomness is
only intended to spread out the load from a number of clients, but each
client should have an hour between each maintenance cycle.
Add this random minute to the cron integration.
The cron schedule specification starts with a minute indicator, which
was previously inserted as the "0" string but now takes the given minute
as an integer parameter.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
---
builtin/gc.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/builtin/gc.c b/builtin/gc.c
index f059c9f89d5..be47000ed36 100644
--- a/builtin/gc.c
+++ b/builtin/gc.c
@@ -2181,6 +2181,7 @@ static int crontab_update_schedule(int run_maintenance, int fd)
FILE *cron_list, *cron_in;
struct strbuf line = STRBUF_INIT;
struct tempfile *tmpedit = NULL;
+ int minute = get_random_minute();
get_schedule_cmd(&cmd, NULL);
strvec_split(&crontab_list.args, cmd);
@@ -2235,11 +2236,11 @@ static int crontab_update_schedule(int run_maintenance, int fd)
"# replaced in the future by a Git command.\n\n");
strbuf_addf(&line_format,
- "%%s %%s * * %%s \"%s/git\" --exec-path=\"%s\" for-each-repo --config=maintenance.repo maintenance run --schedule=%%s\n",
+ "%%d %%s * * %%s \"%s/git\" --exec-path=\"%s\" for-each-repo --config=maintenance.repo maintenance run --schedule=%%s\n",
exec_path, exec_path);
- fprintf(cron_in, line_format.buf, "0", "1-23", "*", "hourly");
- fprintf(cron_in, line_format.buf, "0", "0", "1-6", "daily");
- fprintf(cron_in, line_format.buf, "0", "0", "0", "weekly");
+ fprintf(cron_in, line_format.buf, minute, "1-23", "*", "hourly");
+ fprintf(cron_in, line_format.buf, minute, "0", "1-6", "daily");
+ fprintf(cron_in, line_format.buf, minute, "0", "0", "weekly");
strbuf_release(&line_format);
fprintf(cron_in, "\n%s\n", END_LINE);
--
gitgitgadget
next prev parent reply other threads:[~2023-08-07 18:51 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-07 18:51 [PATCH 0/6] maintenance: schedule maintenance on a random minute Derrick Stolee via GitGitGadget
2023-08-07 18:51 ` [PATCH 1/6] maintenance: add get_random_minute() Derrick Stolee via GitGitGadget
2023-08-07 21:20 ` Taylor Blau
2023-08-07 23:53 ` Junio C Hamano
2023-08-08 0:22 ` Junio C Hamano
2023-08-08 14:48 ` Taylor Blau
2023-08-08 16:34 ` Junio C Hamano
2023-08-08 16:49 ` Junio C Hamano
2023-08-08 20:01 ` Taylor Blau
2023-08-08 17:28 ` Derrick Stolee
2023-08-08 20:04 ` Taylor Blau
2023-08-09 12:17 ` Derrick Stolee
2023-08-09 18:50 ` Junio C Hamano
2023-08-09 20:34 ` Taylor Blau
2023-08-07 18:51 ` [PATCH 2/6] maintenance: use random minute in launchctl scheduler Derrick Stolee via GitGitGadget
2023-08-07 21:23 ` Taylor Blau
2023-08-07 18:51 ` [PATCH 3/6] maintenance: use random minute in Windows scheduler Derrick Stolee via GitGitGadget
2023-08-07 18:51 ` Derrick Stolee via GitGitGadget [this message]
2023-08-07 18:51 ` [PATCH 5/6] maintenance: swap method locations Derrick Stolee via GitGitGadget
2023-08-07 21:24 ` Taylor Blau
2023-08-07 18:51 ` [PATCH 6/6] maintenance: use random minute in systemd scheduler Derrick Stolee via GitGitGadget
2023-08-07 21:31 ` Taylor Blau
2023-08-08 13:49 ` Derrick Stolee
2023-08-08 20:05 ` Taylor Blau
2023-08-08 9:53 ` Phillip Wood
2023-08-08 13:03 ` Phillip Wood
2023-08-08 13:56 ` Derrick Stolee
2023-08-08 17:24 ` Derrick Stolee
2023-08-09 10:03 ` Phillip Wood
2023-08-08 12:08 ` Phillip Wood
2023-08-08 17:06 ` Derrick Stolee
2023-08-08 17:14 ` Derrick Stolee
2023-08-09 10:00 ` Phillip Wood
2023-08-10 20:39 ` [PATCH v2 0/8] maintenance: schedule maintenance on a random minute Derrick Stolee via GitGitGadget
2023-08-10 20:39 ` [PATCH v2 1/8] maintenance: add get_random_minute() Derrick Stolee via GitGitGadget
2023-08-10 21:25 ` Taylor Blau
2023-08-10 20:39 ` [PATCH v2 2/8] maintenance: use random minute in launchctl scheduler Derrick Stolee via GitGitGadget
2023-08-10 20:39 ` [PATCH v2 3/8] maintenance: use random minute in Windows scheduler Derrick Stolee via GitGitGadget
2023-08-10 20:39 ` [PATCH v2 4/8] maintenance: use random minute in cron scheduler Derrick Stolee via GitGitGadget
2023-08-10 20:39 ` [PATCH v2 5/8] maintenance: swap method locations Derrick Stolee via GitGitGadget
2023-08-10 20:39 ` [PATCH v2 6/8] maintenance: use random minute in systemd scheduler Derrick Stolee via GitGitGadget
2023-08-14 11:26 ` Phillip Wood
2023-08-10 20:39 ` [PATCH v2 7/8] maintenance: fix systemd schedule overlaps Derrick Stolee via GitGitGadget
2023-08-10 21:22 ` Junio C Hamano
2023-08-14 11:27 ` Phillip Wood
2023-08-10 20:39 ` [PATCH v2 8/8] maintenance: update schedule before config Derrick Stolee via GitGitGadget
2023-08-14 11:28 ` Phillip Wood
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