percona/percona-toolkit
1
0
Fork 0
mirror of https://github.com/percona/percona-toolkit.git synced 2026-04-11 01:01:36 +08:00
Code Issues Packages Projects Releases Wiki Activity

Document extra --run-time-related waits.

Browse Source
This commit is contained in:
Daniel Nichter
2012-10-23 18:21:23 -06:00
parent c077b1eb3d
commit f6527695b8
1 changed files with 12 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
bin/pt-stalk
View File

@@ -1785,6 +1785,18 @@ than L<"--sleep">. It is usually not necessary to change this; if the default 30
seconds hasn't gathered enough diagnostic data, running longer is not likely to seconds hasn't gathered enough diagnostic data, running longer is not likely to
do so. In fact, in many cases a shorter collection period is appropriate. do so. In fact, in many cases a shorter collection period is appropriate.
This value is used two other times. After collecting, the collect subprocess
will wait another L<"--run-time"> seconds for its commands to finish. Some
commands can take awhile if the system is running very slowly (which can
likely be the case given that a collection was triggered). Since empty files
are deleted, the extra wait gives commands time to finish and write their
data. The value is potentially used again just before the tool exits to wait
again for any collect subprocesses to finish. In most cases this won't
happen because of the aforementioned extra wait. If it happens, the tool
will log "Waiting up to N seconds for collectors to finish..." where N is
three times L<"--run-time">. In both cases, after waiting, the tool kills
all of its subprocesses.
=item --sleep =item --sleep
type: int; default: 300 type: int; default: 300