[syslog-ng] Warnings and error while loading default.xml in syslog-ng-3.25.1

Nitish Saboo nitish.saboo55 at gmail.com
Sat Feb 15 08:43:51 UTC 2020


Hi,

After debugging further into the issue looks like there was a fix for
patterndb rule clash in syslog-ng-3.8 and this is the commit-id
'12cd960c8f47260b0b0d4154b096994d66fe345'
for the fix. And for this reason I am getting the following error for same
default.xml in syslog-ng-3.25.1 version and not in syslog-ng3.6.2 and
syslog-ng3.7.1.

2020-02-13T10:47:29.631090] Error parsing pattern database file;
filename='/home/nsaboo/abc/default.xml',
error='/home/nsaboo/abc/default.xml:17274:22: Joining rulesets with
mismatching program name sets, program=proxysg'.

Snippet from default.xml
==========================

<ruleset id="f582419b3baa42d4a57e42b89704e38c" description="">
    <pattern>proxysg</pattern>
    <rules>
      <rule id="f582419b3baa42d4a57e42b89704e38c">
      <patterns>
         <pattern>foo</pattern>
      </patterns>

  <ruleset id="8d633c824e844a559088d803464e507a" description="">
    <pattern>ProxySG</pattern>
    <pattern>proxysg</pattern>
    <rules>
      <rule id="bb169f917216467985cc16e28015f5fa">
      <patterns>
         <pattern>bar</pattern>
      </patterns>

 I am not able to understand the error message clearly.

 1) Can someone please help me understand the issue here ?

 2) Is the issue seen because a ruleset has multiple programs in it or is
it because the same program 'proxysg' is being used in different rulesets ?

 3) From the above snippet of default.xml, what changes can I make into
default.xml to avoid the error ?

 4) Is there a workaround for this issue ?

 Thanks,
 Nitish

On Fri, Feb 14, 2020 at 2:40 PM Nitish Saboo <nitish.saboo55 at gmail.com>
wrote:

> Hi Attila,
>
> Thanks for your response.
>
> And what about the following error:
>
> 2020-02-13T10:47:29.631090] Error parsing pattern database file;
> filename='/home/nsaboo/abc/default.xml',
> error='/home/nsaboo/abc/default.xml:17274:22: Joining rulesets with
> mismatching program name sets, program=proxysg'.
>
> The same default.xml file was getting loaded correctly in syslog-ng-3.6.2
> and syslog-ng-3.7.1 but getting following error while loading same
> default.xml in syslog-ng3.25.1
>
> I came across a similar issue on githib '
> https://github.com/syslog-ng/syslog-ng/issues/2763' .I see the issue is
> still in open state.Is there a workaround for this issue?
>
> Thanks,
> Nitish
>
> On Fri, Feb 14, 2020 at 1:12 PM Attila Szakacs (aszakacs) <
> Attila.Szakacs at oneidentity.com> wrote:
>
>> Hi!
>>
>> WARNING: due to a bug in versions before syslog-ng 3.8numeric comparison
>> operators like '!=' in filter expressions were evaluated as string
>> operators. This is fixed in syslog-ng 3.8. As we are operating in
>> compatibility mode, syslog-ng will exhibit the buggy behaviour as previous
>> versions until you bump the @version value in your configuration file;
>>
>> ^^^ This refers to the syslog-ng.conf file version.
>>
>> The correct way to resolve it, and fix the buggy behavior of != and ==,
>> should be to change the != operators between strings to neq in your filters.
>>
>> Regards,
>> Attila
>> ------------------------------
>> *From:* syslog-ng <syslog-ng-bounces at lists.balabit.hu> on behalf of
>> Nitish Saboo <nitish.saboo55 at gmail.com>
>> *Sent:* Thursday, February 13, 2020 12:17 PM
>> *To:* Syslog-ng users' and developers' mailing list <
>> syslog-ng at lists.balabit.hu>
>> *Subject:* [syslog-ng] Warnings and error while loading default.xml in
>> syslog-ng-3.25.1
>>
>> CAUTION: This email originated from outside of the organization. Do not
>> follow guidance, click links, or open attachments unless you recognize the
>> sender and know the content is safe.
>>
>> Hi,
>>
>> I am using syslog-ng version 3.25.1.Getting following Warnings and error
>> while initialising syslog-ng engine:
>>
>> [2020-02-13T10:47:29.627899] WARNING: due to a bug in versions before
>> syslog-ng 3.8numeric comparison operators like '!=' in filter expressions
>> were evaluated as string operators. This is fixed in syslog-ng 3.8. As we
>> are operating in compatibility mode, syslog-ng will exhibit the buggy
>> behaviour as previous versions until you bump the @version value in your
>> configuration file;
>> [2020-02-13T10:47:29.627968] WARNING: due to a bug in versions before
>> syslog-ng 3.8numeric comparison operators like '!=' in filter expressions
>> were evaluated as string operators. This is fixed in syslog-ng 3.8. As we
>> are operating in compatibility mode, syslog-ng will exhibit the buggy
>> behaviour as previous versions until you bump the @version value in your
>> configuration file;
>> [2020-02-13T10:47:29.628059] WARNING: due to a bug in versions before
>> syslog-ng 3.8numeric comparison operators like '!=' in filter expressions
>> were evaluated as string operators. This is fixed in syslog-ng 3.8. As we
>> are operating in compatibility mode, syslog-ng will exhibit the buggy
>> behaviour as previous versions until you bump the @version value in your
>> configuration file;
>> [2020-02-13T10:47:29.631090] Error parsing pattern database file;
>> filename='/opt/tap-parsing/patterns/default.xml',
>> error='/opt/tap-parsing/patterns/default.xml:17274:22: Joining rulesets
>> with mismatching program name sets, program=proxysg'
>>
>>
>> 1)For the following warnings, to which version I have to bump up the
>> configuration file ?
>>
>> 2020-02-13T10:47:29.627899] WARNING: due to a bug in versions before
>> syslog-ng 3.8numeric comparison operators like '!=' in filter expressions
>> were evaluated as string operators. This is fixed in syslog-ng 3.8. As we
>> are operating in compatibility mode, syslog-ng will exhibit the buggy
>> behaviour as previous versions until you bump the @version value in your
>> configuration file;
>> [2020-02-13T10:47:29.627968] WARNING: due to a bug in versions before
>> syslog-ng 3.8numeric comparison operators like '!=' in filter expressions
>> were evaluated as string operators. This is fixed in syslog-ng 3.8. As we
>> are operating in compatibility mode, syslog-ng will exhibit the buggy
>> behaviour as previous versions until you bump the @version value in your
>> configuration file;
>> [2020-02-13T10:47:29.628059] WARNING: due to a bug in versions before
>> syslog-ng 3.8numeric comparison operators like '!=' in filter expressions
>> were evaluated as string operators. This is fixed in syslog-ng 3.8. As we
>> are operating in compatibility mode, syslog-ng will exhibit the buggy
>> behaviour as previous versions until you bump the @version value in your
>> configuration file;
>>
>> Currrently the configuration version is the following:
>>
>> configuration = cfg_new(0x0302)
>>
>> Do I have to change it to '0x0319' as defined in 'lib/versioning.h' ?
>>
>> 2)The same default.xml file was getting loaded correctly in
>> syslog-ng-3.6.2 and syslog-ng-3.7.1 but getting following error while
>> loading same default.xml in syslog-ng3.25.1
>>
>>
>> 2020-02-13T10:47:29.631090] Error parsing pattern database file;
>> filename='/home/nsaboo/abc/default.xml',
>> error='/home/nsaboo/abc/default.xml:17274:22: Joining rulesets with
>> mismatching program name sets, program=proxysg'.
>>
>> What can be the reason for this error ?
>>
>>
>> Thanks,
>> Nitish
>>
>>
>> ______________________________________________________________________________
>> Member info: https://lists.balabit.hu/mailman/listinfo/syslog-ng
>> Documentation:
>> http://www.balabit.com/support/documentation/?product=syslog-ng
>> FAQ: http://www.balabit.com/wiki/syslog-ng-faq
>>
>>
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