Bug 2224505
| Summary: | Paged search impacts performance [8.9.0] | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 8 | Reporter: | Viktor Ashirov <vashirov> | |
| Component: | 389-ds-base | Assignee: | Pierre Rogier <progier> | |
| Status: | CLOSED ERRATA | QA Contact: | LDAP QA Team <idm-ds-qe-bugs> | |
| Severity: | high | Docs Contact: | ||
| Priority: | high | |||
| Version: | 8.9 | CC: | bsmejkal, emartyny, idm-ds-dev-bugs, idm-ds-qe-bugs, jonmoore, mreynolds, mrhodes, pasik, progier, tbordaz, tmihinto, vashirov | |
| Target Milestone: | rc | Keywords: | Reopened, Triaged, ZStream | |
| Target Release: | --- | |||
| Hardware: | Unspecified | |||
| OS: | Unspecified | |||
| Whiteboard: | sync-to-jira | |||
| Fixed In Version: | 389-ds-1.4-820230816162424-17499975 | Doc Type: | Bug Fix | |
| Doc Text: |
.Paged searches from a regular user now do not impact performance
Previously, when Directory Server was under the search load, paged searches from a regular user could impact the server performance because a lock conflicted with the thread that polls for network events. In addition, if a network issue occurred while sending the page search, the whole server was unresponsive until the `nsslapd-iotimeout` parameter expired. With this update, the lock was split into several parts to avoid the contention with the network events. As a result, no performance impact during paged searches from a regular user.
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Story Points: | --- | |
| Clone Of: | 1974242 | |||
| : | 2232420 2247082 (view as bug list) | Environment: | ||
| Last Closed: | 2023-11-14 15:32:25 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: | 1974242, 2224507, 2251374, 2265544 | |||
| Bug Blocks: | 2232420, 2247082 | |||
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Comment 6
Viktor Ashirov
2023-08-21 13:56:48 UTC
Comparing with the older version I see an improvement: Baseline ldclt -D "uid=test,ou=people,dc=example,dc=com" -w password -e bindeach,esearch -b "ou=people,dc=example,dc=com" -f "uid=user00001" 389-ds-base-1.4.3.36-2.module+el8.9.0+19332+3ffa8e10.x86_64 ldclt[8796]: Average rate: 2749.50/thr (2749.50/sec), total: 27495 ldclt[8796]: Average rate: 2921.00/thr (2921.00/sec), total: 29210 ldclt[8796]: Average rate: 2807.20/thr (2807.20/sec), total: 28072 ldclt[8796]: Average rate: 2817.80/thr (2817.80/sec), total: 28178 ldclt[8796]: Average rate: 2691.10/thr (2691.10/sec), total: 26911 389-ds-base-1.4.3.37-1.module+el8.9.0+19689+7d653af8.x86_64 ldclt[13571]: Average rate: 2876.00/thr (2876.00/sec), total: 28760 ldclt[13571]: Average rate: 2844.70/thr (2844.70/sec), total: 28447 ldclt[13571]: Average rate: 2920.80/thr (2920.80/sec), total: 29208 ldclt[13571]: Average rate: 2898.90/thr (2898.90/sec), total: 28989 ldclt[13571]: Average rate: 2828.80/thr (2828.80/sec), total: 28288 PR search started in parallel to ldclt. A normal user: while : ; do ldapsearch -D "uid=test,ou=people,dc=example,dc=com" -w password -b dc=example,dc=com 'uid=*' -E pr=100/noprompt > /dev/null; done 389-ds-base-1.4.3.36-2.module+el8.9.0+19332+3ffa8e10.x86_64 ldclt[8796]: Average rate: 586.60/thr ( 586.60/sec), total: 5866 ldclt[8796]: Average rate: 626.20/thr ( 626.20/sec), total: 6262 ldclt[8796]: Average rate: 610.50/thr ( 610.50/sec), total: 6105 ldclt[8796]: Average rate: 563.30/thr ( 563.30/sec), total: 5633 389-ds-base-1.4.3.37-1.module+el8.9.0+19689+7d653af8.x86_64 ldclt[13571]: Average rate: 726.00/thr ( 726.00/sec), total: 7260 ldclt[13571]: Average rate: 733.90/thr ( 733.90/sec), total: 7339 ldclt[13571]: Average rate: 741.00/thr ( 741.00/sec), total: 7410 ldclt[13571]: Average rate: 717.90/thr ( 717.90/sec), total: 7179 Directory Manager: while : ; do ldapsearch -D "cn=Directory Manager" -w password -b dc=example,dc=com 'uid=*' -E pr=100/noprompt > /dev/null; done 389-ds-base-1.4.3.36-2.module+el8.9.0+19332+3ffa8e10.x86_64 ldclt[8796]: Average rate: 191.30/thr ( 191.30/sec), total: 1913 ldclt[8796]: Average rate: 206.70/thr ( 206.70/sec), total: 2067 ldclt[8796]: Average rate: 193.10/thr ( 193.10/sec), total: 1931 ldclt[8796]: Average rate: 204.40/thr ( 204.40/sec), total: 2044 ldclt[8796]: Average rate: 201.70/thr ( 201.70/sec), total: 2017 389-ds-base-1.4.3.37-1.module+el8.9.0+19689+7d653af8.x86_64 ldclt[13571]: Average rate: 680.20/thr ( 680.20/sec), total: 6802 ldclt[13571]: Average rate: 627.90/thr ( 627.90/sec), total: 6279 ldclt[13571]: Average rate: 607.20/thr ( 607.20/sec), total: 6072 ldclt[13571]: Average rate: 589.10/thr ( 589.10/sec), total: 5891 ldclt[13571]: Average rate: 586.80/thr ( 586.80/sec), total: 5868 Marking as VERIFIED. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (389-ds:1.4 bug fix and enhancement update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2023:6965 |