hadoop-0.18.3 Could not create the Java virtual machine
Installed hadoop on a VM, and needed to set the java heap size, -Xmx1000m, lower than the default 1000 to get it to work. I set the HADOOP_HEAPSIZE var in the conf/hadoop-env.sh dir to the lower...
View ArticleLoad Balancing Techniques
Load balancing is a term that describes a method to distribute incoming socket connections to different servers. It’s not distributed computing, where jobs are broken up into a series of sub-jobs, so...
View Articleopenldap-2.3 on CentOS5 Tutorial
I had to get a dummy openldap setup that had “mail” as one of it’s attributes for the records. I specifically needed all the records to live in the root ou, meaning no Organizational Units, just the...
View ArticleMake a Private/Public Key Pair, Self Signed, No Password
This is take straight from http://devsec.org/info/ssl-cert.html. I’m getting it on my blog, as a reference to myself, so I can make a key pair quickly in the future. Make a new ssl private key: *...
View ArticleExpect script to print out IronPort config, showconfig
Logging this here for easy fetching later. #!/usr/bin/expect set timeout 30 spawn ssh USERNAME@HOSTNAME expect_after eof { exit 0 } ## interact with SSH expect { "yes/no" { send "yes\r" } -re...
View ArticleStunnel can run multiple ips and certs in one instance
Apparently only the newer versions can do this, 4.15+, but the concept is simple: This is much better than running multiple instances of stunnel. For what it’s worth, if you enable a log file, it’ll...
View ArticleMaking bp-events work on BuddyPress 1.2 (with invites working)
There is a lot of chatter about wanting the plugin creator to update bp-events to work with Buddypress version 1.2, and so far it hasn’t happened, however, this guy has ported it for us so kindly:...
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