[Bug 1590688] Re: clamav-daemon doesn't start after installation

[Launchpad Bug Tracker]

This bug was fixed in the package clamav - 0.99+dfsg-1ubuntu1.2

---
clamav (0.99+dfsg-1ubuntu1.2) xenial; urgency=medium

  * Ensure freshclam service is run after package install (LP: #1590688)

 -- Christian Ehrhardt   Thu, 07 Jul
2016 09:22:31 +0200

** Changed in: clamav (Ubuntu Xenial)
   Status: Fix Committed => Fix Released

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[ChristianEhrhardt]

Thanks Eero for the verification of the fix I added (starting freshclam again 
which was a regression.
You are right that clamav-daemon doesn't start for the reasons I outlined 
before of the condition being not met initially and not picked up later by 
systemd.

I'm not sure about a sleep-loop to fix this up but I really appreciate
dropping the info for anyone who wants this. I'd expect a proper
solution would be something where systemd is realizing that the
condition is "now true" and starts it then.

Since that part is not a regression we should discuss and agree with Debian in 
how to do so.
I started the discussion before on the linked Debian bug, but regarding 
clamav-daemon not starting the response was "this is okay."
Would you mind opening a bug there or chiming in on the linked bug again to 
push your argument - I also already added several suggestions there how to 
start it, but they need some improvement for this "realizing later" that the 
condition is met. 

** Tags removed: verification-needed
** Tags added: verification-done

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[Eero]

If somebody else also needs to deploy clamav packages automatically, you
can add something like this at the end of your installation scripts:

nohup $(
command -v systemctl || exit 0
systemctl status clamav-freshclam || systemctl restart clamav-freshclam
while [ ! -f /var/lib/clamav/daily.cvd ]
do
sleep 1
done
sleep 5
systemctl status clamav-daemon || systemctl restart clamav-daemon
) >/dev/null 2>&1 &

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[Eero]

Freshclam starts with 0.99+dfsg-1ubuntu1.2, but clamav-daemon isn't
started automatically even after the databse files have been fetched.
Clamav-daemon needs to be started manually.

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[Bug Watch Updater]

** Changed in: clamav (Debian)
   Status: New => Fix Released

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[Brian Murray]

Hello Eero, or anyone else affected,

Accepted clamav into xenial-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/clamav/0.99+dfsg-
1ubuntu1.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to
enable and use -proposed.  Your feedback will aid us getting this update
out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-needed to verification-done. If it does not fix the
bug for you, please add a comment stating that, and change the tag to
verification-failed.  In either case, details of your testing will help
us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: clamav (Ubuntu Xenial)
   Status: In Progress => Fix Committed

** Tags added: verification-needed

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[Robie Basak]

The Xenial SRU is in the SRU queue.

** Changed in: clamav (Ubuntu Xenial)
   Status: Triaged => In Progress

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[Launchpad Bug Tracker]

This bug was fixed in the package clamav - 0.99+dfsg-1ubuntu3

---
clamav (0.99+dfsg-1ubuntu3) yakkety; urgency=medium

  * Ensure freshclam service is run after package install (LP: #1590688)

 -- Christian Ehrhardt   Thu, 07 Jul
2016 09:22:41 +0200

** Changed in: clamav (Ubuntu)
   Status: Fix Committed => Fix Released

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[Robie Basak]

Looks good, thanks! Uploaded to Yakkety. We can upload Xenial when you
are ready.

** Changed in: clamav (Ubuntu)
   Status: Confirmed => Fix Committed

** Changed in: clamav (Ubuntu Xenial)
   Status: New => Triaged

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[Robie Basak]

** Also affects: clamav (Ubuntu Xenial)
   Importance: Undecided
   Status: New

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[ChristianEhrhardt]

** Patch added: "upload for yakkety v2"
   
https://bugs.launchpad.net/ubuntu/+source/clamav/+bug/1590688/+attachment/4702846/+files/fix-bug1590688-yakkety.debdiff

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[ChristianEhrhardt]

** Patch added: "upload forxenial v2"
   
https://bugs.launchpad.net/ubuntu/+source/clamav/+bug/1590688/+attachment/4702847/+files/fix-bug1590688-xenial.debdiff

** Patch removed: "upload for yakkety"
   
https://bugs.launchpad.net/ubuntu/+source/clamav/+bug/1590688/+attachment/4696814/+files/fix-bug1590688-yakkety.debdiff

** Patch removed: "upload for xenial"
   
https://bugs.launchpad.net/ubuntu/+source/clamav/+bug/1590688/+attachment/4696815/+files/fix-bug1590688-xenial.debdiff

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[ChristianEhrhardt]

For the sponsors:
1. please accept the xenial task I nominated
1. please review and upload the yakkety debdiff
2. if that went into yakkety without hickups please do the same for the xenial 
debdiff (I can check and ping here after the Y upload happened)

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[ChristianEhrhardt]

** Patch added: "upload for xenial"
   
https://bugs.launchpad.net/ubuntu/+source/clamav/+bug/1590688/+attachment/4696815/+files/fix-bug1590688-xenial.debdiff

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[ChristianEhrhardt]

** Patch added: "upload for yakkety"
   
https://bugs.launchpad.net/ubuntu/+source/clamav/+bug/1590688/+attachment/4696814/+files/fix-bug1590688-yakkety.debdiff

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[ChristianEhrhardt]

I was too early with my statement on working adt as I was relying on
that I've had it running fine last week. But usually prior to any upload
I run these and today it has issues - so this might take a bit longer
than expected :-/

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[ChristianEhrhardt]

** Description changed:

+ [Impact]
+ 
+  * Installing clamav the user expects things start to run
+  * Naturally the daemon can only run after the virus-database is updated 
+   (conditions in systemd service)
+  * But the freshclam service to update the virus-db is not starting either 
+since the move to systemd (Regression to old behavior)
+ 
+ [Test Case]
+ 
+  * (enable proposed if needed)
+  * apt-get install clamav-freshclam
+  * systemctl status clamav-freshclam.service
+  * this should show "active" (fixed) and not just "loaded" (broken)
+ 
+ [Regression Potential]
+ 
+  * The fix is fairly straightforward so there shouldn't be a lot. But it 
+affects postinst and while not changing, it has to move some code there 
+and might affect something in postinst I missed to think about.
+ 
+  * It worked for adt in Y & X and for my manual tests in LXD containers 
+fine
+ 
+ [Other Info]
+  
+  * This is (intentionally) only addressing the regression for now.
+Once fixed we think of splitting the part of auto-starting clamav-
+daemon later on once the DB is ready
+ 
+ 
+ 
  Steps to reproduce:
  
  1. Fresh 16.04 Server installation
  2. "sudo apt-get install clamav-daemon clamav-freshclam"
  3. ClamAV doesn't start even though it should.
  
- 
  $ systemctl status clamav-daemon
  ● clamav-daemon.service - Clam AntiVirus userspace daemon
-Loaded: loaded (/lib/systemd/system/clamav-daemon.service; enabled; vendor 
preset: enabled)
-Active: inactive (dead)
+    Loaded: loaded (/lib/systemd/system/clamav-daemon.service; enabled; vendor 
preset: enabled)
+    Active: inactive (dead)
  Condition: start condition failed at Thu 2016-06-09 11:58:19 EEST; 7min ago
-  Docs: man:clamd(8)
-man:clamd.conf(5)
-http://www.clamav.net/lang/en/doc/
+  Docs: man:clamd(8)
+    man:clamd.conf(5)
+    http://www.clamav.net/lang/en/doc/
  
- $ systemctl status clamav-freshclam.service 
+ $ systemctl status clamav-freshclam.service
  ● clamav-freshclam.service - ClamAV virus database updater
-Loaded: loaded (/lib/systemd/system/clamav-freshclam.service; enabled; 
vendor preset: enabled)
-Active: inactive (dead)
-  Docs: man:freshclam(1)
-man:freshclam.conf(5)
-http://www.clamav.net/lang/en/doc/
+    Loaded: loaded (/lib/systemd/system/clamav-freshclam.service; enabled; 
vendor preset: enabled)
+    Active: inactive (dead)
+  Docs: man:freshclam(1)
+    man:freshclam.conf(5)
+    http://www.clamav.net/lang/en/doc/
  
  Also directory /var/run/clamav/ mentioned in /etc/clamav/clamd.conf
  seems to be missing.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: clamav-daemon 0.99+dfsg-1ubuntu1
  ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
  Uname: Linux 4.4.0-22-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  Date: Thu Jun  9 12:00:59 2016
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2016-06-09 (0 days ago)
  InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 
(20160420.3)
  SourcePackage: clamav
  UpgradeStatus: No upgrade log present (probably fresh install)

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[ChristianEhrhardt]

There was no response by Debian yet, so I decided to carry a fix for #1
as delta for now to get rid of the regression.

THe patch is relatively straight forward which is good as we want to SRU into 
Xenial as well.
It passed all my build and adt tests, also it showed to fix the issue when 
tested in a lxd container.

I'm gonna attach a debdiff for yakkety and xenial.
I also prepare a SRU template right away, so when yakkety is fully accepted one 
can sponsor xenial as well without waiting for me (other than subscribing the 
SRU Team then).

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: clamav (Ubuntu)
   Status: New => Confirmed

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[Bug Watch Updater]

** Changed in: clamav (Debian)
   Status: Unknown => New

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[ChristianEhrhardt]

** Bug watch added: Debian Bug tracker #827909
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=827909

** Also affects: clamav (Debian) via
   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=827909
   Importance: Unknown
   Status: Unknown

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[ChristianEhrhardt]

Hi,
here my initial analysis of the case.

## Check 0 - Debian bug status ##
No related Debian bug found

## Check 1 - Status on Xenial, Yakkety and Sid ##
Despite slight version differences all behave the same.

On all releases when starting freshclam some of the mirrors behind 
db.local.clamav.net failed, but after a while it found a working one.
That took up to 11 minutes in one case depending on mirror success and download 
speed - so nothing we can wait on on "install".
Also for the workaround mentioned that means, you might have to wait quite some 
time between starting freshclam and clamav-daemon

Since clamd was not yet running all reported a warning "Clamd was NOT
notified: Can't connect to clamd through /var/run/clamav/clamd.ctl: No
such file or directory"


## Check #2 - Was this better in the past - is  it a regression? ##
On Trusty (before systemd) instead of the "condition" prints
 Setting up clamav-daemon (0.98.7+dfsg-0ubuntu0.14.04.1) ...
  * Clamav signatures not found in /var/lib/clamav
  * Please retrieve them using freshclam
  * Then run '/etc/init.d/clamav-daemon start'
But freshclam is started automatically at least

On Jessie freshclam starts automatically
=> so that is a regression
But even after it finished it still runs into the "Can't connect to clamd 
through /var/run/clamav/clamd.ctl" as it blocked on start due to the condition 
check in the service.

## Perfect world scenario (=translates to fixes needed) ##
- Freshclam starts after install (all recent releases xenial, yakkety, sid 
broken in that regard)
- clamav-daemon picks up the condition is now valid and starts after freshclam 
updated the DB

## Fix 1 - get freshclam to autostart again ##
The clamav-freshclam.service file is byte identical in jessie (working) and sid 
(failing).
After discussing those with pitti he suggested that the postinst might be 
incomplete.
Some things are not done via dh_installinit or dh_systemd_start but instead 
manually.
Then eventually it calls invoke-rc.d before enabling the unit.
This should likely move after ##DEBHELPER##.

To make it clear - there was no postinst change between jessie (working)
and sid (fails), but invoke-rc-d might have used to start disabled
things.


## Fix 2 - could clamav-daemon start once synced? ##
Re-pickup condition in systemd not built in to Condition statements.
ExecStartPre= and waiting for update not an option as it is not allowed to take 
long.
Discussed with systemd IRC channel - and they suggested a systemd.path unit.

I'm not deep enough into systemd yet to predict if that conflicts with the 
.socket file which is created by the postinst.
After reading docs that would look like (in addition to 
/lib/systemd/system/clamav-daemon.service):
cat /lib/systemd/system/clamav-daemon.path
[Path]
PathExistsGlob=/var/lib/clamav/main.{c[vl]d,inc}
PathExistsGlob=/var/lib/clamav/daily.{c[vl]d,inc}

Also we could at least change the Condition to an Assert to avoid having
it fail silently AND due to the path based activation should never
happen again.

I'll create and test a fix for sid, suggest it to the debian maintainer.
If successful we can pick it up on next merge and/or backport it as needed.

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[ChristianEhrhardt]

** Changed in: clamav (Ubuntu)
 Assignee: (unassigned) => ChristianEhrhardt (paelzer)

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[Bug 1590688] Re: clamav-daemon doesn't start after installation

[Robie Basak]

Thank you for taking the time to report this bug and helping to make
Ubuntu better.

Indeed on a quick inspection it looks like both services are not running
on install. It looks like for clamav-daemon this is intentional as
freshclam has not run yet. However I'd expect the freshclam service to
start. After starting it manually, it failed in my environment because
no proxy was configured and my lab's firewall requires one. I used
"dpkg-reconfigure" to configure a proxy, and the script then started the
freshclam daemon automatically. However after it successfully ran, it
still did not start clamd, noting that it failed to signal clamd in the
logs because it was not running.

I'm not sure what the intended behaviour is. I was unable to check
Debian's behaviour quickly because of bug 1590747. This needs following
up.

Workaround: if you start clamav-freshclam manually, allow it to finish,
then start clamav-daemon manually, I think everything will work from
there on as normal.

** Changed in: clamav (Ubuntu)
   Importance: Undecided => High

** Tags added: server-next

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https://bugs.launchpad.net/bugs/1590688

Title:
  clamav-daemon doesn't start after installation

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