Posts

Installing a CentOS 6 built RPM on CentOS 5: rebuild it with rpmrebuild and the older file digest and payload macros.

GNU Parallel's citation notice, what --bibtex actually prints, and how to make it stop.

The firewall ports Windows Deployment Services actually needs, which is more than the RPC and SMB pair every search result lists.

One Postgres transaction that swaps a table for a freshly loaded copy: CREATE TABLE LIKE, COPY, two renames and a drop.

A Cloudera Manager upgrade drops ldap_username_pattern from hue.ini, so Hue with LDAP will not start until you put it back via safety valve.

Where to request a free credit report in Australia from Experian, Veda and D&B, and the ten business days or so it takes.

Python script that merges hundreds of Avro files into one, handling the header and footer, with notes on how slow the append gets.

What the lease company leaves out: ECM post-tax payments, above-market APR, management and fuel card fees, and what happens if you lose your job.

CDH 5.2.0 ships a Spark history location with no hdfs:// prefix, so the history server reads it as a local path and will not start.

Adding pull to refresh to a plain web page with jquery.scrollz and a few lines of jQuery bound to the pulled event.

Foreman writes the autosign entry but the CSR sits pending forever, because permissions on the CA serial file reject the PUT.

Cloudera Manager's log4j will not compress rotated logs. The Apache Extras rolling appender does, pasted into the logging safety valve.

Managing Dell iDRAC settings from Puppet with racadm, guarded by an onlyif so it only runs on Dell hardware.

Puppet exec resources that generate a Bacula client key and self-signed certificate, then concatenate them into the PEM the file daemon wants.

Turning a Citrix XenServer .xva export into a raw image with xenmigrate.py, then into qcow2 with qemu-img.

Running Citrix NetScaler VPX on KVM by converting the Hyper-V disk, plus the missing default route and the virtio interface catch.

A shell report that pulls Bacula job results out of the Postgres catalogue and emails a daily or weekly summary.

Dell chat support beats reading service tags down the phone: copy and paste friendly, takes attachments, but closes at midnight CST.

Disabling MSI on a bnx2 NIC by reloading the module with disable_msi=1 while keeping the link up, including the bonded interface case.

Making a 3TB disk usable in Linux with a GPT label under parted and ext4 with 1% reservation, plus the HP array controller catch.