TimEL is a Java library specifically developed to evaluate time-series expressions using a user-friendly language. Check out the new version which comes a new streaming API allowing it to crunch very large amounts of data with a constant memory footprint! You can find more on TimEL’s homepage or on
Java
If you look around on the internet you may find a lot of blogs guiding you on the installation of Jetty in RHEL 7 (or CentOS) which require you to download a new fresh distribution of Jetty tarball. Since Jetty is already packaged in RHEL 7, I’d rather use
Back in the 90s I used to hang out on irc, and there, for many years, I’ve used the cyberz nickname, hence cyberz.org. But life goes on and a lot of things changed (yes, every now and then still I log back on irc ;) ). So I’ve decided
Sometimes you may want to override the default SELinux context for a given path. This can be easily accomplished editing /etc/selinux/targeted/contexts/files/file_contexts.local adding an entry (which is made by a path regexp and the selinux content). Follows an example: /path(/.*)? system_u:object_r:
While creating a new domain on Linux, your Weblogic gets stuck at the following message? <BEA-141254> <Generating new domain directory in XXX> Try passing the -Djava.security.egd=file:///dev/urandom option to the JVM!
Did it ever happen to you that while you're scp'ing a huge file the connection drops and you have to start all over again? There are big chances that you know I'm talking about :) Fear no more! Rsync can be used over ssh and
Nowadays virtual environment are very common, thus a hot increase of an existing drive into a virtual machine is a very common operation (roughly equivalent to a LUN expansion in SAN). When you expand a zpool device, the new size won’t be immediately available to zfs, but you can
Here’s the procedure for adding Oracle 12c DBMS as SMF service in Solaris 11.1, based on this guide. The version provided here is slightly modified for the sake of simplicity as It needs only the oracle.xml to run (no additional scripts or configuration are required). The procedure
After putting your precious data into your preferred database (Oracle or MySQL if you’re here) your next worry should be how to back them up. Here Bacula comes to help as a valid opensource network enterprise backup system – but how to get it working with your database? In this
VMware ESXi 5 is not able to handle multi-lun devices by default, so many SCSI autoloaders are not supported as-is (as HP StorageWorks LTOs), showing only the tape drive or media changer but not both: To have it work in ESXi it’s enough to: 1. Get a multi-LUN aware
While executing proguard (via maven2) on MacOSX Snow Leopard, I’ve got the following error: [proguard] Error: Can't read [http://www.vleo.net/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/lib/rt.jar] (No such file or directory) Similarly, you can also get the following
Lately I wanted to bring the advantages of ZFS (on Solaris 11 Express) to a Linux box using iSCSI. After following the Oracle guide, I’ve noticed an unexpected behaviour when discovering the iSCSI targets (from a CentOS host): [root@zimbra ~]# iscsiadm -m discovery -t sendtargets -p 192.168.64.