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• Samsung printer (ML-1640) margin problem

  - by Rytis

  I just got a new laser printer, Samsung ML-1640, and it has once again confirmed my experience that Samsung printers suck badly. The printer prints fine, except that the top margin is set at random, usually very small, cutting text on the top of page off. I tried updating firmware, getting new drivers, but nothing helped. I tried changing paper types, and it seemed that with the paper set as "plain" it was OK, but I just tried printing again after letting the printer rest for the night, and wasted 6 pages until I managed to print 2 boarding passes... Is there anything else I could try to resolve the issue?

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• Firebird database corruption causes

  - by Rytis

  I am running several different Firebird versions (2.0, 2.1) on multiple entry level Windows-based servers with wildly varying hardware. The only matching thing between them is that they are running same home built application with the same database structure. Lately I've been seeing massive slowdowns on multiple servers. Turns out that database gets corrupted, so each time it breaks, I get to mend, backup and restore the database, and it all is fine for some time (1-2 weeks), and then it repeats once again. Thankfully, I haven't seen any data loss or damage... yet. The thing is that every such downtime results in lost productivity, and often quite some driving for me as some of the databases are in remote locations. I've been trying to find out what's causing the corruption, but I haven't been able to. The fact that it's running on different hardware hints that it should not be a hardware based problem. If we rule out hardware issues, I have a bad feeling that it's a bug in Firebird as I'm not doing anything fancy via SQL. Do you have any idea how to find out exactly what's causing the corruption and hopefully fix the problem?

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• Samsung printer (ML-1640) margin problem

  - by Rytis

  I just got a new laser printer, Samsung ML-1640, and it has once again confirmed my experience that Samsung printers suck badly. The printer prints fine, except that the top margin is set at random, usually very small, cutting text on the top of page off. I tried updating firmware, getting new drivers, but nothing helped. I tried changing paper types, and it seemed that with the paper set as "plain" it was OK, but I just tried printing again after letting the printer rest for the night, and wasted 6 pages until I managed to print 2 boarding passes... Is there anything else I could try to resolve the issue?

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• CakePHP repeats same queries

  - by Rytis

  I have a model structure: Category hasMany Product hasMany Stockitem belongsTo Warehouse, Manufacturer. I fetch data with this code, using containable to be able to filter deeper in the associated models: $this->Category->find('all', array( 'conditions' => array('Category.id' => $category_id), 'contain' => array( 'Product' => array( 'Stockitem' => array( 'conditions' => array('Stockitem.warehouse_id' => $warehouse_id), 'Warehouse', 'Manufacturer', ) ) ), ) ); Data structure is returned just fine, however, I get multiple repeating queries like, sometimes hundreds of such queries in a row, based on dataset. SELECT `Warehouse`.`id`, `Warehouse`.`title` FROM `beta_warehouses` AS `Warehouse` WHERE `Warehouse`.`id` = 2 Basically, when building data structure Cake is fetching data from mysql over and over again, for each row. We have datasets of several thousand rows, and I have a feeling that it's going to impact performance. Is it possible to make it cache results and not repeat same queries?

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