Re: mongodb.conf rename

2015-02-05 Thread Marek Skalický
Honza Horak píše v St 04. 02. 2015 v 11:58 +0100:
 On 02/02/2015 05:01 PM, Miloslav Trmač wrote:
  Hello,
  in Fedora Rawhide there is a new major version of mongoDB 2.6. With this
  new version names of mongoDB configuration files will be changed  - to
  reflect names used in upstream rpms
  (http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/RPMS/ )
 
  mongodb.conf - mongod.conf
  mongodb-shard.conf - mongos.conf
 
  In Fedora mongodb.conf is used from version 12.
 
  If this change should be a problem, please contact me...
 
  Is it possible to do something (write RPM scriptlets, or perhaps ship 
  symlinks) to make this transparent and effortless to users?
 
 Let's look at it closer.. First, we need to do all the magic only if 
 previous version is  2.6.
 
 One idea is that we could use %pre script and do the following in it:
 If /etc/mongodb.conf is there (that means we upgrade from 2.4), move it 
 to /etc/monogd.conf and create a symlink /etc/mongodb.conf  
 /etc/mongod.conf
 
 There is one issue I see with this way -- generally when we bring new 
 content during update and the config file hasn't changed, rpm replaces 
 the content and creates config.rpmnew otherwise. The solution above 
 wouldn't behave like this.
 
 Another idea is that we can just ship new config and let the old one 
 either be backed-up (into config.rpmsave in case it has been changed) 
 or removed. Then in case /etc/mongodb.conf.rpmsafe exists, its content 
 could be copied to /etc/mongod.conf, while the original /etc/mongod.conf 
 would be copied into /etc/mongod.conf.rpmnew. Hopefully, that should 
 handle the same user experience as when user upgrades ordinary.
 

With the rename of mongodb.conf and mongodb-shard.conf there are also
changes in /etc/sysconfig/mongod and /etc/sysconfig/mongos. In these
files there is mainly one option which determines config file and these
files are marked as %config(noreplace). So it complicates upgrade...

1. /etc/sysconf/mongod changed  /etc/mongodb.conf changed
 - use these changed files with same names
2. /etc/sysconf/mongod changed  /etc/mongodb.conf original
 - use changed mongod file and rename mongod.conf back to mongodb.conf
1. /etc/sysconf/mongod original  /etc/mongodb.conf changed
 - use new mongod file and rename changed mongodb.conf to mongod.conf
2. /etc/sysconf/mongod original  /etc/mongodb.conf original
 - use new files

And the same for /etc/sysconfig/mongos and mongodb-shard.conf...

I have implemented this in %triggerpostun server -- %{name}-server 
2.6.7-3 (
http://pkgs.fedoraproject.org/cgit/mongodb.git/tree/mongodb.spec#n291 ) 
But it is quite complicated. Is it required to check changes in
sysconfig files? Not enough to check only config files? 

Or what else should be done?

Thanks,
Marek

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Re: mongodb.conf rename

2015-02-04 Thread Honza Horak

On 02/02/2015 05:01 PM, Miloslav Trmač wrote:

Hello,

in Fedora Rawhide there is a new major version of mongoDB 2.6. With this
new version names of mongoDB configuration files will be changed  - to
reflect names used in upstream rpms
(http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/RPMS/ )

mongodb.conf - mongod.conf
mongodb-shard.conf - mongos.conf

In Fedora mongodb.conf is used from version 12.

If this change should be a problem, please contact me...


Is it possible to do something (write RPM scriptlets, or perhaps ship symlinks) 
to make this transparent and effortless to users?


Let's look at it closer.. First, we need to do all the magic only if 
previous version is  2.6.


One idea is that we could use %pre script and do the following in it:
If /etc/mongodb.conf is there (that means we upgrade from 2.4), move it 
to /etc/monogd.conf and create a symlink /etc/mongodb.conf  
/etc/mongod.conf


There is one issue I see with this way -- generally when we bring new 
content during update and the config file hasn't changed, rpm replaces 
the content and creates config.rpmnew otherwise. The solution above 
wouldn't behave like this.


Another idea is that we can just ship new config and let the old one 
either be backed-up (into config.rpmsave in case it has been changed) 
or removed. Then in case /etc/mongodb.conf.rpmsafe exists, its content 
could be copied to /etc/mongod.conf, while the original /etc/mongod.conf 
would be copied into /etc/mongod.conf.rpmnew. Hopefully, that should 
handle the same user experience as when user upgrades ordinary.


Just thinking laudly, so there may be some drawbacks or better solutions.

Honza

[1] 
http://fedoraproject.org/wiki/Packaging:ScriptletSnippets#Scriptlet_Ordering

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Re: mongodb.conf rename

2015-02-02 Thread Miloslav Trmač
Hello,
 in Fedora Rawhide there is a new major version of mongoDB 2.6. With this
 new version names of mongoDB configuration files will be changed  - to
 reflect names used in upstream rpms
 (http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/RPMS/ )
 
 mongodb.conf - mongod.conf
 mongodb-shard.conf - mongos.conf
 
 In Fedora mongodb.conf is used from version 12.
 
 If this change should be a problem, please contact me...

Is it possible to do something (write RPM scriptlets, or perhaps ship symlinks) 
to make this transparent and effortless to users?
Mirek
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mongodb.conf rename

2015-01-30 Thread Marek Skalický
Hi,

in Fedora Rawhide there is a new major version of mongoDB 2.6. With this
new version names of mongoDB configuration files will be changed  - to
reflect names used in upstream rpms
(http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/RPMS/ )

mongodb.conf - mongod.conf
mongodb-shard.conf - mongos.conf

In Fedora mongodb.conf is used from version 12.

If this change should be a problem, please contact me...

Thanks,
Marek

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