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Bug 1749595

Summary:	Extremely slow LDIF import with ldif2db
Product:	Red Hat Enterprise Linux 7	Reporter:	joel <jwooten>
Component:	389-ds-base	Assignee:	mreynolds
Status:	CLOSED ERRATA	QA Contact:	RHDS QE <ds-qe-bugs>
Severity:	high	Docs Contact:	Marc Muehlfeld <mmuehlfe>
Priority:	high
Version:	7.3	CC:	afarley, Egarciad, jwooten, lkrispen, mreynolds, msauton, nkinder, pasik, rsevilla, sgouvern, spichugi, tbordaz, tmihinto, vashirov
Target Milestone:	rc	Keywords:	ZStream
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	389-ds-base-1.3.10.1-3.el7	Doc Type:	Bug Fix
Doc Text:	.Importing large LDIF files to Directory Server databases with many nested-subtrees is now significantly faster Previously, if the Directory Server database contained many nested sub-trees, importing a large LDIF file using the `ldif2db` and `ldif2db.pl` utilities was slow. With this update, Directory Server adds the `ancestorid` index after all entries. As a result, importing LDIF files to a database with many nested sub-trees is now significantly faster.	Story Points:	---
Clone Of:
Clones:	1763622 1801696 (view as bug list)		Environment:
Last Closed:	2020-03-31 19:46:15 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:
Bug Blocks:	1763622, 1801696

Description joel 2019-09-06 00:26:03 UTC

Description of problem:
I'm trying to import a big LDIF (~36 million entries) and I'm suffering a really bad performance during the "Gathering ancestorid " phase.
Importing this LDIF using ldif2db or ldif2db.pl file takes  around 1 day. 

Version-Release number of selected component (if applicable):
389-ds-base-1.3.5.10-18.el7_3.x86_64

How reproducible:
very

Steps to Reproduce:
1.import very large database
2.
3.

Actual results:
can take a day for 30M entries

Expected results:
faster

Additional info:
- from logs
[04/Sep/2019:10:38:20.790500639 +0000] import bbvaES: Gathering ancestorid non-leaf IDs: processed 82% (ID count 14900000)
[04/Sep/2019:10:57:44.853250820 +0000] import bbvaES: Gathering ancestorid non-leaf IDs: processed 83% (ID count 15000000)
[04/Sep/2019:11:17:49.509786966 +0000] import bbvaES: Gathering ancestorid non-leaf IDs: processed 83% (ID count 15100000)
[04/Sep/2019:11:38:00.980343788 +0000] import bbvaES: Gathering ancestorid non-leaf IDs: processed 84% (ID count 15200000)
[04/Sep/2019:11:57:17.381658686 +0000] import bbvaES: Gathering ancestorid non-leaf IDs: processed 84% (ID count 15300000)
[04/Sep/2019:12:16:30.000451563 +0000] import bbvaES: Gathering ancestorid non-leaf IDs: processed 85% (ID count 15400000)

- upstream bug
https://pagure.io/389-ds-base/issue/49850

Comment 11 errata-xmlrpc 2020-03-31 19:46:15 UTC

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, 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-2020:1064