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From "Andrew Onischuk (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-14430) Get rid of wildcards in package names.
Date Fri, 18 Dec 2015 10:32:46 GMT
Andrew Onischuk created AMBARI-14430:
----------------------------------------

             Summary: Get rid of wildcards in package names.
                 Key: AMBARI-14430
                 URL: https://issues.apache.org/jira/browse/AMBARI-14430
             Project: Ambari
          Issue Type: Bug
            Reporter: Andrew Onischuk
            Assignee: Andrew Onischuk
             Fix For: 2.4.0
         Attachments: AMBARI-14430.patch

**Problem**:  
Wildcards in packages bring and bunch of problems connected with RU and normal
installs.  
a) If we install let's say hadoop_2_2_* and hadoop_2_2_0_1234-libhdfs get
installed, but hadoop_2_2_0_1234 fails, we can no longer install master
package.  
b) Packages like hive_2_2-*-atlas-plugin, if for some reason they get
installed before hive_2_2_*, we get problems with inability to install. I've
bumped into a couple of different situations like this. (storm_2_2* and
storm_slider_2_2* etc. ; zookeeper-* and zookeeper-2_2*-server). That all 3
are real bugs which we had to hack out  
c) We install a lot of packages which are not needed by default like hadoop-
2_2_...fuse, just by asking hadoop_2_2_*.  
d) Situtations like 47931 can happen in RU.  
e) The bug in RU where we add a service after install_packages was triggered.

**Proposal:**  
1\. Replace * by ${hdp_version} in metainfo.xml.  
E.g.:

    
    
            <osSpecific>
              <osFamily>redhat7,redhat6,suse11</osFamily>
              <packages>
                <package>
                  <name>hbase_2_3_*</name>
                </package>
                <package>
                  <name>phoenix_2_3_*</name>
                </package>
              </packages>
            </osSpecific>
    

->
    
    
            <osSpecific>
              <osFamily>redhat7,redhat6,suse11</osFamily>
              <packages>
                <package>
                  <name>hbase_${hdp_version}</name>
                </package>
                <package>
                  <name>hbase_${hdp_version}-regionserver</name>
                </package>
                <package>
                  <name>phoenix_${hdp_version}</name>
                </package>
              </packages>
            </osSpecific>
    

Note: this step will also let us not override packages in metainfo.xml with
every HDP version to just change e.g. hbase_2_2_* to hbase_2_3_*.

2\. During INSTALL action (script.py) or during install packages
(install_packages.py) get the version we are currently using from hdp-select.

e.g. for centos:

    
    
    [root@andrew-1 ~]# yum info hdp-select | grep 'Version' | awk '{print $3}'
    2.3.4.0
    [root@andrew-1 ~]# yum info hdp-select | grep 'Release' | awk '{print $3}'
    3204 # a bit slow for every INSTALL task
    

Another better aproach is to install hdp-select and than use rpm/dpkg, which
is faster than yum/zypper/apt-get, considering we will do this on every
INSTALL task this is important.

    
    
    [root@andrew-1 ~]# rpm -q --queryformat '%{version}-%{release}' hdp-select | sed -e 's/\.el[0-9]//g'
# faster approach
    2.3.4.0-3204
    
    
    
    u1201:~ # dpkg -s hdp-select | grep 'Version' | awk '{print $2}' 
    2.3.4.0-3475
    

Vs other approaches:  
I think it's the only possible approach to get the version here, sending
version which is specified by user during creating of a version. Seems to be a
bad idea as the user can specify wrong version. Also we will need to use this
during fresh install, where we don't have it specified at all.

3\. Replace ${hdp_version} with the version we got in step 2.

I also discussed this with dlysnichenko this seems to be feasible in terms of
RU/EU.  
The overall idea was discussed in 47931  
cc smohanty





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