Category: Tech

Python, igraph in CentOS

Python, igraph in CentOS

Build Python 2.7 with package igraph 0.5.4 in CentOS 5.5 , all from source and install to non-standard path : Source placed in : /usr/local/python-igraph/src/ Destination Build path : /usr/local/python-igraph/ The sequence of installation...

mysqldump errno: 145

mysqldump errno: 145

mysqldump failed on one table of testbbs database with error code 145 . It fail to open it’s index table . Probably the index file is corrupted. # mysqldump –databases testbbs –single-transaction > testbbs.sql...

iTunes:Rip audio CD into mp3 files

After inserting audio CD , don’t start the rip within iTunes . Instead , click “Import Setting” on bottom left Select “MP3 Encoder” instead of “AAC Encoder” which is the default : After saving...

nagios :MySQL server has gone away

nagios :MySQL server has gone away

The CentOS 5.5 server running opsview server crashed this morning , and after restart , below error messages being repeatedly logged in /var/log/messages : Mar 30 11:47:14 cuse77 ndo2db: mysql_error: ‘MySQL server has gone...

kernel: Out of socket memory

kernel: Out of socket memory

One machine running CentOS 5.5 x64 becomes non-responsive yesteraday , and I could only find some records in /var/log/messages : kernel: Out of socket memory Other than that , nothing significant is found. In...