Rpmdb checksum is invalid: dCDPT(pkg checksums)

[guzzi]

After installing clamav I got error

Warning: RPMDB altered outside of yum.
Rpmdb checksum is invalid: dCDPT(pkg checksums)

Yum still functions and I can install other packages, but the error now comes back with every install. rpm --rebuilddb does not fix it.

[David McKenna]

'yum clean rpmdb' got rid of this error for me.

[guzzi]

It didn't for me.

[Yuri Dario]

It seems related to some kind of rpm database corruption or duplicate entries. Try

rpm -qa "*clam*"

and see if you have duplicate entries.
Maybe also 'rpm --rebuilddb' could help.

[guzzi]

No duplicates. rpm --rebuilddb doesn'fix it.

[Lewis Rosenthal]

I am seeing this as well, in two different VMs, since upgrading rpm to 4.8.1-22. 4.8.1-20 does not seem to exhibit this behavior (unzipping 4.8.1-20 over an installed 4.8.1-22 results in clean installs without the error). Unfortunately, I can't find a good way of rolling back via yum from 4.8.1-22, as yum downgrade fails with a number of dependencies (including gcc-4.9.2.1-3).

[Lewis Rosenthal]

This has bubbled up to the surface for me again, as we're readying YUMIE for release.

Interestingly, from @unixroot/var/lib/rpm, I ran:

ren Packages Packages.bak
db_dump Packages.bak | db_load Packages
rpm --rebuilddb

The resulting rebuilt Packages db is considerably slimmer than the previous one:

11-19-15  18:40       3,162,112    124  Packages
 9-26-15   8:55       3,440,640    124  Packages.bak

I'm still seeing the error message during an update operation, but not during install or remove (multiple packages, via yum).

[Silvan Scherrer]

I changed the Summary, as this is a general issue and has nothing to do with clamav. Clamav just triggered it for the reporter the first time.

[Silvan Scherrer]

http://trac.netlabs.org/rpm/browser/yum/trunk/yum/rpmsack.py line 706 rises this error. Do we have some debug flags activated?

[Silvan Scherrer]

in ​https://github.com/rpm-software-management/yum/commit/bf106ce30a198f32f43d14041d808b60f9e6719e#diff-54c87c0b8b359850b7c3cfec40445626 the fix is present. I added it locally and see no more issues. Dmik also has my rpmsack.py and does some additional testings

[Yuri Dario]

yum: fix (from upstream) epoch handling in package match. Fixes ticket#117.
Committed revision r1018.

[dmik]

Note that I still get this:

Rpmdb checksum is invalid: dCDPT(pkg checksums): coreutils-common.i686 0:8.26-2 - u

sometimes. So this fix doesn't actually remove this message it makes it more verbose. Perhaps it's also related to the fact that the Rpmdb was touched outside yum (i.e. by rpm directly). The question is how to get rid of such messages. Sometimes yum clean all helps but not always it seems.

[Silvan Scherrer]

this is all a yum issue. and yum got several hundreds fixes, but no new release. when time permits, we might update to latest yum git head.

[Silvan Scherrer]

this can be worked around by setting the debuglevel to 0 in /etc/yum/yum.conf

[Lewis Rosenthal]

Set debuglevel to 0 in /etc/yum/yum.conf.

[n:\] yum update os2-rpm

worked as expected (after confirming update, returned to prompt with no further output). Then:

[n:\] yum update sed

produced:

Rpmdb checksum is invalid: dCDPT (pkg checksums): sed.i686 0:4.7-1.oc00 - u

so it looks like debuglevel=0 is not a comprehensive workaround.

[Silvan Scherrer]

I hate it when documentation is wrong. as this message is only spit when debug value is set. So it must be set anyway somehow. So we have to live with it further. As I have no time to debug when this value is set and why.

[Silvan Scherrer]

I added some debug locally, but until now i'm not able to trigger it.

[Silvan Scherrer]

ok I found something eventually. please test it

in /usr/lib/python2.7/site-packages/yum/rpmsack.py search for

#YD already root based
self._cachedir = cachedir + "/installed/"

and change that to

#YD already root based
#self._cachedir = cachedir + "/installed/"
self._cachedir = cachedir

This installed part is not used since yum 3.4.1 when I read the code right. And I could downgrade and update several packages in a row w/o issues. Before this did not work.

[Lewis Rosenthal]

Sorry, not working here.

I made the change as described, and then attempted to update whois from the root directory. The error message presented itself.

Same error when downgrading.

Also, the installed directory is indeed used. It is emptied at the conclusion of a transaction, but with DELDIR enabled, it is possible to list the files which were removed from the installed directory (%UNIXROOT%\var\lib\yum\rpmdb-indexes\installed).

Perhaps looking down closer to line 688 (def _deal_with_bad_rpmdbcache) might produce some clues as to what is triggering this (or line 369).

I haven't spent enough time with the script to fully understand all that is happening in it, but maybe you'll catch something.

[Silvan Scherrer]

The installed dir is not used at all if you changed all right. And i cant trigger it anymore with the changes.

[Silvan Scherrer]

ok today I got it as well again. I give up on this for now, as I have really no time. I might look at it again but for sure not before the end of August.