Bug 1443973
| Summary: | glibc: Remove the PID cache | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Florian Weimer <fweimer> | |
| Component: | glibc | Assignee: | glibc team <glibc-bugzilla> | |
| Status: | CLOSED WONTFIX | QA Contact: | qe-baseos-tools-bugs | |
| Severity: | unspecified | Docs Contact: | ||
| Priority: | unspecified | |||
| Version: | 7.4 | CC: | ashankar, codonell, fweimer, lnykryn, mnewsome, pfrankli, tomek | |
| Target Milestone: | rc | Keywords: | Patch | |
| Target Release: | --- | |||
| Hardware: | Unspecified | |||
| OS: | Unspecified | |||
| Whiteboard: | ||||
| Fixed In Version: | Doc Type: | If docs needed, set a value | ||
| Doc Text: | Story Points: | --- | ||
| Clone Of: | ||||
| : | 1443976 1563115 (view as bug list) | Environment: | ||
| Last Closed: | 2018-04-04 13:02:41 UTC | Type: | Bug | |
| Regression: | --- | Mount Type: | --- | |
| Documentation: | --- | CRM: | ||
| Verified Versions: | Category: | --- | ||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | ||
| Cloudforms Team: | --- | Target Upstream Version: | ||
| Embargoed: | ||||
| Bug Depends On: | 1443976, 1476297, 1491416 | |||
| Bug Blocks: | ||||
According to upstream this could cause a serious performance regression in journalctl. Once you have a build can you please ping me? https://lists.freedesktop.org/archives/systemd-devel/2017-July/039195.html Hmm actually is not just journalctl but everything that uses journal api. This can hurt rsyslog as well. (In reply to Lukáš Nykrýn from comment #2) > Hmm actually is not just journalctl but everything that uses journal api. > This can hurt rsyslog as well. Are you able to try Fedora 26? It was released with glibc 2.25 which contains the removed cache. I have not tried it yet, but based to the thread the same problem is in fedora: https://lists.freedesktop.org/archives/systemd-devel/2017-July/039269.html Closing as WONTFIX because the change is deemed to disruptive for Red Hat Enterprise Linux 7. See bug 682922 comment 33. |
The glibc PID cache negatively interacts with setting up containers and namespaces. Upstream commit: commit c579f48edba88380635ab98cb612030e3ed8691e Author: Adhemerval Zanella <adhemerval.zanella> Date: Mon Oct 10 15:08:39 2016 -0300 Remove cached PID/TID in clone