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Description of problem:
Default location for backup files is /var/lib/ipa/backup/, if it runs
out of memory backup fails. But the error message on
console is confusing. When you check /var/log/ipabackup.log, you come to know that there is no memory left.

Version-Release number of selected component (if applicable):
ipa-server-4.5.4-10.el7_5.2.x86_64

How reproducible:
always

Steps to Reproduce:
1. install ipa master

2. $ cd /var/lib/ipa/backup and generate some file to fill the memory like
$ fallocate -l 10G temp.img

3. run ipa-backup

Actual results:
Errno 2] No such file or directory:
'/var/lib/dirsrv/slapd-TESTRELM-TEST/ldif/TESTRELM-TEST-ipaca.ldif'
The ipa-backup command failed. See /var/log/ipabackup.log for more
information

Expected results:
Some useful message regarding insufficient memory.

Additional info:
There is no file at the location for which it is failing when ipa
installed on fresh system:

root@master backup]# ll /var/lib/dirsrv/slapd-TESTRELM-TEST/ldif/
total 0

Didn't you mean disk space instead of memory?

Upstream ticket:
https://pagure.io/freeipa/issue/7647

Fixed upstream
master:
https://pagure.io/freeipa/c/e6415ec3210cda0808867642cb19f0df1ddd3c45

Fixed upstream
ipa-4-7:
https://pagure.io/freeipa/c/d6492fa2a0aecee475e5dbfd8e3ea3d52f028cea

Fixed upstream
ipa-4-6:
https://pagure.io/freeipa/c/e665675084888b8b8cc11df68726a37971d29f47

version:
ipa-server-4.6.6-11.el7.x86_64

Steps:
Same as description

Actual result:

[root@master backup]# ipa-backup 
Preparing backup on master.testrelm.test
Stopping IPA services
Backing up ipaca in TESTRELM-TEST to LDIF
Backing up userRoot in TESTRELM-TEST to LDIF
Backing up TESTRELM-TEST
Backing up files
tar returned non-zero code 2: tar: Removing leading `/' from member names
tar: Removing leading `/' from hard link targets
tar: /tmp/tmpxmVYREipa/ipa/files.tar: Cannot write: No space left on device
tar: Error is not recoverable: exiting now

The ipa-backup command failed. See /var/log/ipabackup.log for more information

Based on above observations, marking the bug 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, 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-2020:1083