Author Archives: litwin

WordPress – Error establishing a database connection


Ups! When i forced server reboot, one of the hosted domains (this blog) was died.
Main page displayed info:
Error establishing a database connection

How to solve it?

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How to convert pack of images into one pdf file in linux?

I spent over 3 hours to find a free software for windows what allow to merge few images into one pdf file. Without success. All of them, marked as free of free to home use can’t do this (i don’t want any watermarks in final file).
So… let’s bring linux to work?

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Agent unreachable – EMD upload error:The agent is overloaded [current requests: 128]

Agent are displayed in agent list as unreachable.
Try to upload data?

[oraagent@hostname ~]$ emctl upload agent
Oracle Enterprise Manager Cloud Control 12c Release 3
Copyright (c) 1996, 2013 Oracle Corporation. All rights reserved.
EMD upload error:The agent is overloaded [current requests: 128]

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Fedora 20 – install XSane + Epson Perfection V30 scanner drivers

Solved: how to install XSane and Epson Perfection V30 Scanner in Fedora linux.


I’m bored with Epson software in Windows…

One page scan done in few minutes?

Let’s go to linux and speed up scanning with XSane!

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OEM12C Agent is down – ERROR – Critical error: java.lang.OutOfMemoryError: Java heap space

Another error spotted…
Agent is going down after a few minutes / hours.

2014-04-22 14:56:50,337 [40:54F9BB47:GCThread-11] INFO - uncaughtException handler with
java.lang.OutOfMemoryError: Java heap space

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