shussekaidoのブログ https://ameblo.jp/shussekaido/ ブログの説明を入力します。 ja VM time sync So, I finally got around to troubleshooting time sync in my VMs. When virtual machines resume from standby the date/time in the VM will be behind. After a while you can end up with your VM being days behind the actual date. For some reason I found it difficult to google up a clear solution, which is really strange - you'd think it's a really common issue.

So, here is a solution that worked for me. First of all you want to make sure your ntpd daemon is set to run at startup. On FreeBSD your /etc/rc.conf needs to have ntpd_enable="YES"

Edit /etc/ntp.conf:

# Add minpoll and maxpoll to your time servers in order to poll time once a minute:
server 0.freebsd.pool.ntp.org iburst minpoll 6 maxpoll 6
server 1.freebsd.pool.ntp.org iburst minpoll 6 maxpoll 6
server 2.freebsd.pool.ntp.org iburst minpoll 6 maxpoll 6

# Uncommment these lines at the end:
server 127.127.1.0
fudge 127.127.1.0 stratum 10

# Add this line:
tinker panic 0


The tinker panic 0 part tells ntpd not to freak out during boot time (otherwise it will throw an error if VM time lag is greater than 10 mins). Most places I googled make it seem like tinker panic 0 is the actual solution but in reality it only works when the VM boots up. The edits mentioned above help the VM update the time after resuming from sleep.

Remember to restart ntpd (service ntpd restart).

]]> https://ameblo.jp/shussekaido/entry-11490052395.html Thu, 14 Mar 2013 09:35:23 +0900 Confluence 5 on FreeBSD 9 with OpenJDK 7 So, I was playing with FreeBSD in a VM and when I realized a default install would boot with 64 MB of ram I started drooling all over it. I run some VMs on my hackintosh and frankly, I'm pretty low on memory. The biggest ram hog is my Confluence wiki in a CentOS 6 VM which I use as a personal wiki. It's probably overkill because it's such a heavy application but it does the job well and I love using it. I tried some lighter wikis but they don't really do it for me. If I didn't have Confluence I would virtualize Microsoft OneNote in a Windows VM.

So, Confluence has one big problem and the name of the problem is Java. It takes about a gig of ram to run the wiki for me, one humble user. It's ridiculous, ludicrous and preposterous beyond all recognition. Re-write the damn thing for Node, Rails, anything, for the love of kittens! You know, like instead of adding useless trendy social media crap... Or, I swear, I'm just gonna have to build a new box with more RAM... (Tumbleweed). I've actually been running my CentOS-based Confluence VM with 512 MB of ram allocated and just let it swap about 300 megs because I have an SSD and I'm not afraid to use it. 

Where was I? Right, Java is evil and must die. So, Confluence 5 needs JDK 1.7 and I have no freaking clue how to get JDK 1.7 on FreeBSD. Actually I have no freaking clue about FreeBSD in general because I tried it like the other day for the fist time. Poking around, it seems my options are to install JDK 1.6 through some major pain-in-the-ass manual finagling or just say screw it and try OpenJDK 1.7 which isn't (officially) supported by Confluence.

If you googled your way here be forewarned I am not an admin, I'm just playing around.

Today's ingredients:
FreeBSD 9.1 i368 VM (1 GB RAM)
OpenJDK 7
PostgreSQL 9.2
Confluence 5.0.1

Prepare ports, shell, repo source

# On brand new FreeBSD do:
portsnap fetch extract
 
# Otherwise do:
portsnap fetch update

Note that some commands below won't work in default csh. Use zsh, bash or change to commands for your shell.
# Change shell to ZSH
cd /usr/ports/shells/zsh && make install clean

# this will change shell for current user
chsh -s /usr/local/bin/zsh
 
# Change repo source to something that works for you
export PACKAGESITE="ftp://ftp6.ru.freebsd.org/pub/FreeBSD/ports/`uname -m`/packages-9-current/Latest/"
 
pkg_add -r wget

OpenJDK is the easy part

pkg_add -r openjdk7


# java -version
openjdk version "1.7.0_06"
OpenJDK Runtime Environment (build 1.7.0_06-b24)
OpenJDK Client VM (build 23.2-b09, mixed mode)

Install Confluence

Go to http://atlassian.com/software/confluence/download and check for latest version (Standalone, in either OS X or Linux section).
mkdir /usr/local/confluence/ && cd /usr/local/confluence/

wget --no-check-certificate "http://www.atlassian.com/software/confluence/downloads/binary/atlassian-confluence-5.0.1.tar.gz" && mv atlas* confluence.tar.gz

tar zxvf confluence.tar.gz && rm confluence.tar.gz

ln -s /usr/local/confluence/atlassian-confluence-5.0.1/ /usr/local/confluence/current
  
mkdir confluence-home

echo 'confluence.home=/usr/local/confluence/confluence-home/' > /usr/local/confluence/current/confluence/WEB-INF/classes/confluence-init.properties
  
echo -e 'JAVA_HOME="/usr/local/openjdk7/"\nexport JAVA_HOME\n' >> /usr/local/confluence/current/bin/setenv.sh
  
pw add user confluence -d /usr/local/confluence/confluence-home -s /bin/sh -m

chown -R confluence:confluence /usr/local/confluence
  
# Start Confluence
sh /usr/local/confluence/current/bin/start-confluence.sh
  
# check log
tail -f /usr/local/confluence/current/logs/catalina.out

Add Confluence to startup

Put this script into /usr/local/etc/rc.d/confluence.sh
#!/bin/sh
# PROVIDE: confluence
# REQUIRE: postgresql
# BEFORE: LOGIN
# KEYWORD: shutdown
  
confluence_root="/usr/local/confluence/current"
JAVA_HOME="/usr/local/openjdk7/"
export JAVA_HOME
. /etc/rc.subr
name="confluence"
rcvar=${name}_enable
start_cmd="${name}_start"
stop_cmd=":"
load_rc_config $name
: ${confluence_enable:=no} 
: ${confluence_msg="Starting Confluence."}
confluence_start()
{
${confluence_root}/bin/startup.sh start || err 1 "Error starting Confluence!"
}
load_rc_config $name
run_rc_command "$1"

Make it executable and enable it.
chmod +x /usr/local/etc/rc.d/confluence.sh
echo 'confluence_enable="YES"' >> /etc/rc.conf

Install PostgreSQL

pkg_add -r postgresql92-server
 
echo 'postgresql_enable="YES"' >> /etc/rc.conf
/usr/local/etc/rc.d/postgresql initdb
service postgresql start
 
# Create Confluence user and DB:
su pgsql
$ createuser -SDRP confuser
Enter password for new role: ******
Enter it again: ******
  
$ createdb confluence --owner=confuser --encoding=UTF-8 -e
   
# List databases and owners:
 psql -l
$ exit
service postgresql restart

You're basically done, you can now access your machine's hostname on port 8090 in the browser. Or you could drop that :8090 thingie.

Forward port 80 to 8090

# If you don't have a firewall enabled yet, let's enable PF
# The kernel will be recompiled with the firewall enabled
 
# If you don't have FreeBSD source, get it:
wget -P /usr/local/ ftp://ftp.freebsd.org/pub/FreeBSD/releases/`uname -m`/`uname -r`/src.txz && tar -C / -xvzf src.txz && rm /usr/local/src.txz
  
cp /usr/src/sys/`uname -m`/conf/GENERIC /usr/src/sys/`uname -m`/conf/PF
  
# Note, this long-ass thing is a long-ass command, paste the whole thing
echo -e '\ndevice pf\ndevice pflog\ndevice pfsync\noptions         ALTQ\noptions         ALTQ_CBQ        # Class Bases Queuing (CBQ)\noptions         ALTQ_RED        # Random Early Detection (RED)\noptions         ALTQ_RIO        # RED In/Out\noptions         ALTQ_HFSC       # Hierarchical Packet Scheduler (HFSC)\noptions         ALTQ_PRIQ       # Priority Queuing (PRIQ)\noptions         ALTQ_NOPCC      # Required for SMP build/n' >> /usr/src/sys/`uname -m`/conf/PF
  
# To update the kernel faster or to build only custom modules, edit /etc/make.conf before starting to build the kernel:
echo 'MODULES_OVERRIDE = pf' >> /etc/make.conf
# This variable specifies the list of modules to build instead of building everything.
 
cd /usr/src && make buildkernel KERNCONF=PF
make installkernel KERNCONF=PF
echo -e '\npf_enable="YES"\npf_rules="/etc/pf.conf"\n' >> /etc/rc.conf
 
 
# Forward the port 
echo 'rdr on em0 proto tcp from any to any port 80 -> 127.0.0.1 port 8090' >> /etc/pf.conf
 
# reboot
init 6

Finito la comedia

You're done! Access your Confluence server hostname in the browser.

A little troubleshooting

I imported my database and attachments from Confluence 4 and it ran like a champ on 1 gig of ram. That is, until it became fubar. I don't know if it's something I did (probably), but I was testing it at 512 megs of ram (it got painfully slow) and then back to 1 gig and then BOOM I got an error like this:

com.atlassian.util.concurrent.LazyReference$InitializationException: java.lang.NullPointerException

Confluence would crash every time I accessed the wiki. Turns out my PostgreSQL daemon crashed so hard it couldn't get back up.
service postgresql restart
> pg_ctl: invalid data in PID file "/usr/local/pgsql/data/postmaster.pid"

# When in doubt, RM.
rm /usr/local/pgsql/data/postmaster.pid 

service postgresql restart
> FATAL:  bogus data in lock file "/tmp/.s.PGSQL.5432.lock": ""
> pg_ctl: could not start server

# Whatever, dude. R effin' M.
rm /tmp/.s.PGSQL.5432.lock

service postgresql restart
service postgresql status
> pg_ctl: server is running (PID: 1467)

# Much better. Restart and you're in business.

Postmortem

A couple things to note:
  • At 512 MB ram Confluence is noticeably faster on CentOS+JDK1.7 than on FreeBSD+OpenJDK7. I do have Confluence 4 on CentOS still, so don't know if that's a variable as well.
  • I also tried Confluence 4 on FreeBSD9.0+JDK1.6. It didn't feel fast at 1 gig and it puked at 512 ram (same PostgreSQL crash).

Update

Crashed with the following error:
# A fatal error has been detected by the Java Runtime Environment:
#  SIGSEGV (0xb) at pc=0x281a01a6, pid=1336, tid=1636939520
# JRE version: 7.0-b24
# Java VM: OpenJDK Client VM (23.2-b09 mixed mode bsd-x86 )
# Problematic frame:
# C  [libc.so.7+0xf81a6]  memmove+0x1e
# Core dump written. Default location: //core or core.1336
# An error report file with more information is saved as:
# //hs_err_pid1336.log
# If you would like to submit a bug report, please visit:
#  http://bugreport.sun.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.

Meh... I'm not too interested in troubleshooting this. I may play a bit with JDK1.6 later and see how it jives with Confluence 5 on FreeBSD.


]]> https://ameblo.jp/shussekaido/entry-11480681077.html Thu, 28 Feb 2013 21:58:08 +0900