SAP Sybase IQ SA CR 728597 / Linux Kernel direct i/o bug & huge pages

by Jason L Froebe on February 19, 2014, no comments

Last year, April -> October, I asked the question about IQ supporting Huge Pages on Linux. It was mentioned that under SA CR 728597 and Red Hat Bug 891857 that there was a bug in the Linux kernel handling of direct I/O while using transparent huge memory pages (a variant of Linux Huge memory pages). […]

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Connect to Microsoft SQL Server (including Azure instances) from Linux (x86/x86-64) using ODBC and JDBC

by Jason L Froebe on December 5, 2013, no comments

Connecting to Microsoft SQL Server from Linux can be done through two different methods: ODBC and JDBC. Unfortunately, FreeTDS doesn’t connect to the newest versions of SQL Server unless you want to enable legacy connections. The Microsoft JDBC Driver 4.0 for SQL Server, a Type 4 JDBC driver provides database connectivity through the standard JDBC […]

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FW: Matt Fischer’s LIMITING LXC MEMORY USAGE (aka How to limit the memory usage of Linux LXC containers and validate the memory limit)

by Jason L Froebe on September 18, 2013, no comments

I’ve been playing around with LXC over the past few weeks and one of the things I tried out was limiting the memory that the container is allowed to use. I didn’t plan on explaining all the ins-and-outs of LXC here, but a short description is that LXC provides a virtualizedish environment that is more than a […]

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Sybase SQL Server 11.0.3.3 for Linux – still going strong

by Jason L Froebe on September 17, 2013, no comments

Last night I helped a friend at a small company install, configure and tune Sybase SQL Server 11.0.3.3 for Linux using the same method as I used on HOWTO: INSTALLING AND RUNNING SAP / SYBASE SQL SERVER 11.0.3.3 ESD 6 ON UBUNTU LINUX USING KVM. No, I didn’t provide the software, they already had it. There is […]

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HOWTO: Linux Samba protocol negotiation failed: NT_STATUS_INSUFFICIENT_RESOURCES – SOLVED! Windows XP 2k8 Win7 Win8 Win2012

by Jason L Froebe on August 20, 2013, no comments

The issue is the LanmanServer service runs out of memory. We need to boost that up: On your Windows machine, fire up regedit (Start -> regedit) modify the following registry keys: “HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\LargeSystemCache” from 0 to 1 “HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\Size” from 1 to 3 The problem seems to manifest itself more frequently if you use your […]

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