Database on the bin

Install MySQL Server Community Edition on Fedora 20

Tue, 01 Jul 2014 00:00:00 +0000

Today we are going to go through the process of installing MySQL Server Community Edition on Fedora 20. You could of course simply use MariaDB, but this will focus on the Community Edition.

Install the MySQL Repository

We will need to install the MySQL Community Repository, the MySQL project hosts an RPM file with the repository. First lets look at the repositories that I have already.

 bash
 
 
yum repolist
Loaded plugins: langpacks, refresh-packagekit
repo id repo name status
adobe-flashplayer Adobe Flash Player - x86_64 2
fedora/20/x86_64 Fedora 20 - x86_64 38,597
google-chrome Google Chrome - x86_64 3
oracle-virtualbox/20/x86_64 Oracle VirtualBox - x86_64 10
rpmfusion-free/20/x86_64 RPM Fusion for Fedora 20 - Free 468
rpmfusion-free-updates/20/x86_64 RPM Fusion for Fedora 20 - Free - Updates 464
rpmfusion-nonfree/20/x86_64 RPM Fusion for Fedora 20 - Nonfree 203
rpmfusion-nonfree-updates/20/x86_64 RPM Fusion for Fedora 20 - Nonfree - Updates 299
updates/20/x86_64 Fedora 20 - x86_64 - Updates 17,616
repolist: 57,662

Now lets install the release file. Keep in mind, you can do a separate wget or curl to download the file, or you can use the command as I have. As of the time of this writing there are also repositories for Fedora 18 and 19 and Enterprise Linux 5, 6 and 7 (beta). Though the only procedures I have validated are the Fedora 20, they should all work the same.

SQL Developer Crash on Fedora 20

Tue, 01 Jul 2014 00:00:00 +0000

I ran into a painful issue on Fedora 20 with SQL Developer. Basically every time it was launched via the shortcut it would go through loading, and then disappear.

Manual Invocation of SQL Developer

When launching it via the script itself it gives us a little more information.

 bash
 
 
/opt/sqldeveloper/sqldeveloper.sh

Oracle SQL Developer
Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.

 

LOAD TIME : 279#
A fatal error has been detected by the Java Runtime Environment:
#
SIGSEGV (0xb) at pc=0x00000038a1e64910, pid=12726, tid=140449865832192
#
JRE version: Java(TM) SE Runtime Environment (7.0_40-b43) (build 1.7.0_40-b43)
Java VM: Java HotSpot(TM) 64-Bit Server VM (24.0-b56 mixed mode linux-amd64 compressed oops)
Problematic frame:
C 0x00000038a1e64910
#
Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
An error report file with more information is saved as:
/opt/sqldeveloper/sqldeveloper/bin/hs_err_pid12726.log
[thread 140449881597696 also had an error]
#
If you would like to submit a bug report, please visit:
http://bugreport.sun.com/bugreport/crash.jsp
#
/opt/sqldeveloper/sqldeveloper/bin/../../ide/bin/launcher.sh: line 611: 12726 Aborted (core dumped) ${JAVA} "${APP_VM_OPTS[@]}" ${APP_ENV_VARS} -classpath ${APP_CLASSPATH} ${APP_MAIN_CLASS} "${APP_APP_OPTS[@]}"

I also noticed, that while executing as root it worked. However that clearly isn’t the “solution”

Oracle VM 3: Connecting to MySQL Backend

Wed, 13 Feb 2013 00:00:00 +0000

Starting in Oracle VM 3.2.1 the built in database of the Oracle VM Manager was MySQL. I had hoped that this change would also signal a change in the database schema. In prior versions of OVM 3.x all data was populated in the database in a completely useless longblob form.

 bash
 
 
mysql ovs -u root -p
Enter password:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'

As we can see it is attempting and failing to use /var/lib/mysql/mysql.sock as the connection. So lets take a look at the process and see if it has any clues.