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RRD4SAR

praveenmanja | 29 April, 2010 02:29

RRD4SAR

Description: Fetch SAR statistics for a selected day for a selected remote machine and display them graphically. Uses RRDtool (Copyright 1997-2004 by Tobias Oetiker ), SAR command authored by Sebastien Godard & PHP(libssh2).

License: Distributed under GNU GENERAL PUBLIC LICENSE - Version 3
Author: Praveen Kumar K S
Download: rrd4sar

 rrd4sar

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SVN | Write-Thru-Proxy

praveenmanja | 30 December, 2008 06:14

SVN STACK Design / Install / Configure / Repository Mirroring(write thru proxy) / Repository Migration(cvs2svn), Repository Browsing(websvn), Repository Search(gonzui)
 
   Chapter 1. SVN What?
   Chapter 2. SVN Why?
   Chapter 3. SVN How?
   Chapter 4. SVN Stack
   Chapter 5. SVN Install Instructions
          5.1  Apache for SVN
          5.2  Subversion
          5.3  Subversion authentication & authorization
          5.4  cvs2svn
          5.5  SVNSYNC
          5.6  REVERSE SYNC
          5.7  SYNC AUTOMATE
          5.8  WRITE THRU PROXY
   Chapter 6. Errors & Resolutions
   Chapter 7. WebSVN
   Chapter 8. gonzui

SVN Install Instructions | Howto co from mirror and commit to master:

  Plan 1) (DISCARDED)
       To get the UUID on the master machine:
               svnadmin dump -r0 /home/myname/svn/projects | head -n 3 > saved-uuid
       Copy the file saved-uuid to the mirror machine and do a
               svnadmin load --force-uuid /svnroot/MySubversionIndiaServer < saved-uuid
       On client:
               svn switch --relocate
       svn commit

  Plan 2) (IMPLEMENTED) WRITE THRU PROXY
       Use Apache(mod_proxy) and SVNMasterURI(available since SVN beta1)

       In MySubversionIndiaServer:
       Install & enable mod_proxy:
               cd /home/myname/svn/softwares/apache-2.2.6/bin
               ./apxs -c -i /home/myname/svn-install-scripts/httpd-2.2.6/modules/proxy/mod_proxy.c /home/myname/svn-install-scripts/httpd-2.2.6/modules/proxy/proxy_util.c
               ./apxs -c -i /home/myname/svn-install-scripts/httpd-2.2.6/modules/proxy/mod_proxy_http.c
               vi /home/myname/svn/softwares/apache-2.2.6/conf/httpd.conf
                       LoadModule proxy_module   modules/mod_proxy.so
                       LoadModule proxy_http_module   modules/mod_proxy_http.so

               vi /home/myname/svn/softwares/apache-2.2.6/conf/httpd.conf
                    #SVN 1.5 beta india
                       <Location /svn>
                       DAV svn
                       SVNPath /home/myname/svn/testproject
                       #SVNAutoversioning on
                       #ModMimeUsePathInfo on
                       AuthType Basic
                       AuthName "Subversion repository"
                       AuthUserFile
                       /home/myname/svn/softwares/apache-2.2.6/etc/svn-auth-file
                       Require valid-user
                       </Location>
                    #SVN 1.5 beta us for sync only
                       <Location /MySubversionAmericaServer>
                       DAV svn
                       SVNPath /home/myname/svn/MySubversionAmericaServer
                       Order deny,allow
                       Deny from all
                       Allow from MySubversionAmericaServer # or provide IP
                       #SVNAutoversioning on
                       #ModMimeUsePathInfo on
                       AuthType Basic
                       AuthName "Subversion repository"
                       AuthUserFile /home/myname/svn/softwares/apache-2.2.6/etc/svn-auth-file
                       Require valid-user
                       </Location>
                    #SVN 1.5 beta us synced for co only
                       <Location /CO-from-INDIA-CIN-to-AMERICA/>
                       DAV svn
                       SVNPath /home/myname/svn/MySubversionAmericaServer
                       SVNMasterURI http://MySubversionAmericaServer/svn/
                       #SVNAutoversioning on
                       #ModMimeUsePathInfo on
                       AuthType Basic
                       AuthName "Subversion repository"
                       AuthUserFile /home/myname/svn/softwares/apache-2.2.6/etc/svn-auth-file
                       Require valid-user
                       </Location>

       In MySubversionAmericaServer:
               cd /home/myname/apache-2.2.6/bin
               ./apxs -c -i /home/myname/svn-install-scripts/httpd-2.2.6/modules/proxy/mod_proxy.c /home/myname/svn-install-scripts/httpd-2.2.6/modules/proxy/proxy_util.c
               ./apxs -c -i /home/myname/svn-install-scripts/httpd-2.2.6/modules/proxy/mod_proxy_http.c
               vi /home/myname/apache-2.2.6/conf/httpd.conf
                       LoadModule proxy_module   modules/mod_proxy.so
                       LoadModule proxy_http_module   modules/mod_proxy_http.so
               vi /home/myname/apache-2.2.6/conf/httpd.conf
                    #SVN 1.5 beta us
                       <Location /svn>
                       DAV svn
                       SVNPath /svnroot/testproject
                       #SVNAutoversioning on
                       #ModMimeUsePathInfo on
                       AuthType Basic
                       AuthName "Subversion repository"
                       AuthUserFile /home/myname/apache-2.2.6/etc/svn-auth-file
                       Require valid-user
                       </Location>
                    #SVN 1.5 beta india for sync only
                       <Location /MySubversionIndiaServer>
                       DAV svn
                       SVNPath /svnroot/MySubversionIndiaServer
                       Order deny,allow
                       Deny from all
                       Allow from MySubversionIndiaServer # or provide IP
                       #SVNAutoversioning on
                       #ModMimeUsePathInfo on
                       AuthType Basic
                       AuthName "Subversion repository"
                       AuthUserFile /home/myname/apache-2.2.6/etc/svn-auth-file
                       Require valid-user
                       </Location>
                    #SVN 1.5 beta synced for co only
                       <Location /CO-from-AMERICA-CIN-to-INDIA/>
                       DAV svn
                       SVNPath /svnroot/MySubversionIndiaServer
                       SVNMasterURI http://MySubversionIndiaServer/svn/
                       #SVNAutoversioning on
                       #ModMimeUsePathInfo on
                       AuthType Basic
                       AuthName "Subversion repository"
                       AuthUserFile /home/myname/apache-2.2.6/etc/svn-auth-file
                       Require valid-user
                       </Location>

Errors & Resolutions

       Install errors and resolutions not covered here.

 1)    During svnsync usage
       Error:
               svnsync: PROPFIND of '/MySubversionAmericaServer': Could not resolve hostname `MySubversionIndiaServer'
       Resolution:
               ip instead of hostname

 2)
       SVNSYNC troubleshooting:
               Trouble shooting trailing slases in httpd.conf
               I tried Subversion 1.5 Beta1 WebDAV Write-Thru Proxies. Works fine for me.
               While compiling SVN 1.5, it complained about few thing(mostly related to Neon
               and Swig-Python).. which were resolved after I provided it with latest version of Neon and Swig.
               I tried a mirrored(svnsync) setup like:
               A -------------> a
               b <------------- B
               where A,B are masters and a,b are slaves. Later I tried
               checkout-from-mirror-checkin-to-master scenario.
               Works well. It gave me trailing slash related error.

               Resolution:
               In master httpd.conf no trailing slash in location directive:
               <Location /ABCD>
               In mirror httpd.conf has trailing slash in location directive:
               <Location /co-from-mirror-cin-to-master/>
               SVNMasterURI http://masterhost/ABCD/
               ..
               ..
               </Location>

               Complication of the above setup should be noted first.
               On checkout from mirror and checkin to master , this setup does the following.
               1) redirect to master
               2) cin to master
               3) sync to mirror (using svnsync in post-commit wrapper)
               Setup involves svnsync, location directive, SVNMasterURI. So this whole slash
               thing observation may not  be a actual problem at all. I may have gone wrong
               somewhere. Anyways.. as I said.. it was resolved with no further problem.

               master: noslash
               mirror: slash
               SVNMasterURI: slash
               =OK

               master: noslash
               mirror: slash
               SVNMasterURI: noslash
               =svn: Unusable URI: it does not refer to this repository

               master: noslash
               mirror: noslash
               SVNMasterURI: slash
               =svn: Server sent unexpected return value (405 Method Not Allowed) in response
               to PROPPATCH request for
               '/co-from-mirror-cin-to-master!svn/wbl/1e1fafe4-c5f4-48ba-93c3-05646e5b9087/3

               master: slash
               mirror: slash
               SVNMasterURI: slash
               =svnsync: Server sent unexpected return value (405 Method Not Allowed) in
               response to PROPFIND request for '/ABCD'

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SVN | Write-Thru-Proxy | Errors & Resolutions

praveenmanja | 30 December, 2008 05:30

SVN STACK Design / Install / Configure / Repository Mirroring(write thru proxy) / Repository Migration(cvs2svn), Repository Browsing(websvn), Repository Search(gonzui)
 
   Chapter 1. SVN What?
   Chapter 2. SVN Why?
   Chapter 3. SVN How?
   Chapter 4. SVN Stack
   Chapter 5. SVN Install Instructions
          5.1  Apache for SVN
          5.2  Subversion
          5.3  Subversion authentication & authorization
          5.4  cvs2svn
          5.5  SVNSYNC
          5.6  REVERSE SYNC
          5.7  SYNC AUTOMATE
          5.8  WRITE THRU PROXY
   Chapter 6. Errors & Resolutions
   Chapter 7. WebSVN
   Chapter 8. gonzui

Errors & Resolutions

       Install errors and resolutions not covered here.

 1)    During svnsync usage
       Error:
               svnsync: PROPFIND of '/MySubversionAmericaServer': Could not resolve hostname `MySubversionIndiaServer'
       Resolution:
               ip instead of hostname

 2)
       SVNSYNC troubleshooting:
               Trouble shooting trailing slases in httpd.conf
               I tried Subversion 1.5 Beta1 WebDAV Write-Thru Proxies. Works fine for me.
               While compiling SVN 1.5, it complained about few thing(mostly related to Neon
               and Swig-Python).. which were resolved after I provided it with latest version of Neon and Swig.
               I tried a mirrored(svnsync) setup like:
               A -------------> a
               b <------------- B
               where A,B are masters and a,b are slaves. Later I tried
               checkout-from-mirror-checkin-to-master scenario.
               Works well. It gave me trailing slash related error.

               Resolution:
               In master httpd.conf no trailing slash in location directive:
               <Location /ABCD>
               In mirror httpd.conf has trailing slash in location directive:
               <Location /co-from-mirror-cin-to-master/>
               SVNMasterURI http://masterhost/ABCD/
               ..
               ..
               </Location>

               Complication of the above setup should be noted first.
               On checkout from mirror and checkin to master , this setup does the following.
               1) redirect to master
               2) cin to master
               3) sync to mirror (using svnsync in post-commit wrapper)
               Setup involves svnsync, location directive, SVNMasterURI. So this whole slash
               thing observation may not  be a actual problem at all. I may have gone wrong
               somewhere. Anyways.. as I said.. it was resolved with no further problem.

               master: noslash
               mirror: slash
               SVNMasterURI: slash
               =OK

               master: noslash
               mirror: slash
               SVNMasterURI: noslash
               =svn: Unusable URI: it does not refer to this repository

               master: noslash
               mirror: noslash
               SVNMasterURI: slash
               =svn: Server sent unexpected return value (405 Method Not Allowed) in response
               to PROPPATCH request for
               '/co-from-mirror-cin-to-master!svn/wbl/1e1fafe4-c5f4-48ba-93c3-05646e5b9087/3

               master: slash
               mirror: slash
               SVNMasterURI: slash
               =svnsync: Server sent unexpected return value (405 Method Not Allowed) in
               response to PROPFIND request for '/ABCD'

 3)    During cvsus --> MySubversionAmericaServer conversion using cvs2svn
       Error:
               '/home/myname/cvs/cvsroot/dummy/dummy.txt,v' is not a valid ,v file
       Resolution:
               It is an empty file(not required) and can be removed during conversion
               Checkout from mycvsserver says:
               cvs -d :pserver:praveen@mycvsserver:2401/cvsroot co dummy/dummy.txt
                       cvs server: warning: new-born dummy/dummy.txt
                       has disappeared
               cvs -d :pserver:praveen@mycvsserver:2401/cvsroot co dummy
                       cvs server: Updating
                       dummy
                       U
                       dummy/dummy.txt
                mv /home/myname/cvs/cvsroot/dummy/dummy.txt,v /tmp/junk/

       Error:
               It is not clear how the following symbols should be converted.
               Use --force-tag, --force-branch, --exclude, and/or --symbol-default to
               resolve the ambiguity.
                   'ABCDEF' is a tag in 11111 files, a branch in 111
               files and has commits in 222 files
                   'GEFGEF' is a tag in 333 files, a branch in 1111 files
               and has commits in 11 files
       Temporary Resolution:
               --symbol-default="heuristic"

       Error:
               Unable to convert a path
               'whatever.whatever'
               to internal encoding.
               Consider rerunning with one or more '--encoding' parameters or
               with '--fallback-encoding'.
       Resolution:
               --encoding=latin_1
               --encoding=utf_8
               --encoding=utf_7
               --encoding=utf_16
               --encoding=shift_jis
               --fallback-encoding=utf_8

 4)    After installing svn-python binding in MySubversionAmericaServer.. while executing
       python
       >>>import svn.repos
       Error:
               undefined symbol: gss_delete_sec_context
       Resolution:
               cd /home/myname/svn-install-scripts/subversion-1.5.0-beta1
               vi Makefile
                       #SVN_APR_LIBS =  /home/myname/apache-2.2.6/lib/libapr-1.la -luuid -lrt -lcrypt  -lpthread -ldl
                       SVN_APR_LIBS =  /home/myname/apache-2.2.6/lib/libapr-1.la -luuid -lrt -lcrypt  -lpthread -ldl -lgssapi
               ln -s /usr/lib/libgssapi.so.2.0.0 /usr/lib/libgssapi.so
               And make again.

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SVN STACK | gonzui

praveenmanja | 30 December, 2008 05:21

SVN STACK Design / Install / Configure / Repository Mirroring(write thru proxy) / Repository Migration(cvs2svn), Repository Browsing(websvn), Repository Search(gonzui)
 
   Chapter 1. SVN What?
   Chapter 2. SVN Why?
   Chapter 3. SVN How?
   Chapter 4. SVN Stack
   Chapter 5. SVN Install Instructions
          5.1  Apache for SVN
          5.2  Subversion
          5.3  Subversion authentication & authorization
          5.4  cvs2svn
          5.5  SVNSYNC
          5.6  REVERSE SYNC
          5.7  SYNC AUTOMATE
          5.8  WRITE THRU PROXY
   Chapter 6. Errors & Resolutions
   Chapter 7. WebSVN
   Chapter 8. gonzui

gonzui:

       Install Ruby
               echo "Installing Ruby:"
               cd /home/myname/svn-install-scripts/
               #wget ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6.tar.gz
               tar zxvf ruby-1.8.6.tar.gz
               cd ruby-1.8.6
               CFLAGS="-m32" ./configure
               make
               make install
       Install BDB
               echo "Installing bdb:"
               cd /home/myname/svn-install-scripts/
               #wget ftp://moulon.inra.fr/pub/ruby/bdb.tar.gz
               tar zxvf bdb.tar.gz
               cd bdb-0.6.2
               make distclean
               make clean
               ruby extconf.rb
               make
               make install
       Installing Gonzui
               echo "Installing gonzui:"
               cd /home/myname/svn-install-scripts/
               #wget http://nchc.dl.sourceforge.net/sourceforge/gonzui/gonzui-1.1.tar.gz
               tar zxvf gonzui-1.1.tar.gz
               cd gonzui-1.1
       If its a 32bit arch node:
                       CFLAGS="-m32"
                       ./configure
                       --prefix=/home/myname/svn/softwares/gonzui
       If its a 64bit arch node:
                       CFLAGS="-m64 -fPIC"
                       ./configure
                       --prefix=/home/myname/svn/softwares/gonzui
               make
               make install
       Gonzui post installation
               cd /home/myname/svn/softwares/gonzui/
               cp etc/gonzuirc.sample ~/.gonzuirc
       Edit ~/.gonzuirc
               :daemon                   => true,
               :http_port                => 8081,
               :site_title               => "My Repository - Code Search",
       TO ADD CVS REPOS:
               cd /home/myname/svn/softwares/gonzui/bin
               cvs -d :pserver:praveen@mycvsserver:/cvsroot login
               Example:
                       ./gonzui-import --cvs :pserver:praveen@mycvsserver:/cvsroot dummyproject
       TO ADD SVN REPOS:
               cd /home/myname/svn/softwares/gonzui/
               ./gonzui-import --svn http://MySubversionIndiaServer/svn/dummyproject dummyproject
       Run gonzui server
               ./gonzui-server
       Run svn updates to gonzui
               ./gonzui-update
       List whats in gonzui
               ./gonzui-db --list
       If added content is to be removed:
               ./gonzui-remove <>
       Set a cron to update repository changes to gonzui
               crontab -e
                       */1 * * * * /home/myname/svn/softwares/gonzui/bin/gonzui-update
       Add startup. Edit /etc/rc.local
               /home/myname/svn/softwares/gonzui/bin/gonzui-server

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SVN STACK | WebSVN

praveenmanja | 30 December, 2008 05:20

SVN STACK Design / Install / Configure / Repository Mirroring(write thru proxy) / Repository Migration(cvs2svn), Repository Browsing(websvn), Repository Search(gonzui)
 
   Chapter 1. SVN What?
   Chapter 2. SVN Why?
   Chapter 3. SVN How?
   Chapter 4. SVN Stack
   Chapter 5. SVN Install Instructions
          5.1  Apache for SVN
          5.2  Subversion
          5.3  Subversion authentication & authorization
          5.4  cvs2svn
          5.5  SVNSYNC
          5.6  REVERSE SYNC
          5.7  SYNC AUTOMATE
          5.8  WRITE THRU PROXY
   Chapter 6. Errors & Resolutions
   Chapter 7. WebSVN
   Chapter 8. gonzui

WebSVN-2.0:

       Requires Apache with php-4.3+
       Hence use RHEL default httpd+php installation
       Verify php -v
       Install,
               cd /home/myname/svn/
               svn --username=guest co http://websvn.tigris.org/svn/websvn/tags/2.0/ websvn-2.0
                       Password: Hit enter
               cd websvn-2.0
       Edited httpd.conf and add proper host:port
               <VirtualHost MySubversionIndiaServer:8080>
                       ServerName MySubversionIndiaServer
                       DocumentRoot /home/myname/svn/websvn-2.0
                       SetEnv HTTP_PORT 8080
                       ErrorLog /var/log/httpd/error_log.websvn
               </VirtualHost>
       Do an Apache graceful
               /etc/init.d/httpd-new graceful
       Browse http://MySubversionIndiaServer/doc/install.html
               chmod -R 0755 /home/myname/svn/websvn-2.0/cache
               cd /home/myname/svn/websvn-2.0/
               mv include/distconfig.php include/config.php
       Edit include/config.php
       Browse http://MySubversionIndiaServer:8080/

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