I have data subscription with IQFeed. I use the latest IQFeed plugin to stream the real-time data into Amibroker. Tbe Amibroker is a great application!
The historical data, is downloaded once, by the Amiboker through the IQFeed plugin. It is then saved in the amibroker (AB) database. As more real-time data comes-in, the data is captured and stored by the AB. I save the database and all settings before quitting the AB. While saving the data or after clicking a symbol after launching the application, I find the data for every symbol is reduced from a few MBs to 2-3 kbs. I then transfer the data from the backup to the database folder. When I lauch the application, after transfer from the backup, the application can open the historical data and download the recent data. But the database gets rewritten to a few KBs at the time of saving (most of the time) or when the AB is launched the following day. This happens ever time. With the help of AB support, I have tried all possibilities without any success. The support says this could be an issue with Zonelarm as some users of AB/IQFeed have been complaining about similar problems in the past. The problem seems to be going away if the zonealarm is shut down. This problem was reported in 2004-05; I understand some of the Ninjatraders are facing/faced similar problems in the past. In the Firewall, Zone of the Zonealarm, I have given the IQFeed Connection Manager IP address as trusted. In the Program Control, the AB and IQFeed applications' Trust Levels are super; the access (trusted and internet) and Server (trusted and internet) are allowed. I have also allowed access to Send Email. I believe these settings are sufficient for the applications to function and the AB database to save without any conflict from the Zonealarm. I use Win7 64 bit on xw8600. The admin and user (myself) have full access plus ownership to drives C and G. Virtualisation is not an issue. I have also done the installation outside of the Program Files without any issue. Please advise whether any one is experiencing or experienced similar problems. I would appreciate any thoughts on the same. Thanks SSri
