bulkloader

问题 I checked the original site of the internet archive and they mentioned there a couple of steps to follow, which included the use of the wget utility using Cygwin over windows, I followed the steps above, I made an advanced search and extracted the CSV file, converted it to .txt and then tried to run the following commands wget -r -H -nc -np -nH --cut-dirs=1 -A .pdf,.epub -e robots=off -l1 -i ./itemlist.txt -B 'http://archive.org/download/ The emulator gets stuck afterwards and no log message

问题 I checked the original site of the internet archive and they mentioned there a couple of steps to follow, which included the use of the wget utility using Cygwin over windows, I followed the steps above, I made an advanced search and extracted the CSV file, converted it to .txt and then tried to run the following commands wget -r -H -nc -np -nH --cut-dirs=1 -A .pdf,.epub -e robots=off -l1 -i ./itemlist.txt -B 'http://archive.org/download/ The emulator gets stuck afterwards and no log message

问题 I have a array of data something like var records = [ {Name: '', Id: 1}, {Name: '', Id: 2}, {Name: '', Id: 3}, {Name: '', Id: 4}, {Name: '', Id: 5}, {Name: '', Id: 6} ]; there could be thousands of items inside records array... Ques1: Can we create a stored procedure which will accept an array of objects in mysql? Ques2: Is there a way to bulk insert this data into mysql with Node JS? 回答1: You can bulk insert the array of records ,but before that you might need to convert it into array of

问题 My application uses Django non-rel. I don't have access to model. I have my bulkloader.yaml file autogenerated by appcfg.py create_bulkloader_config . Problem is entities numeric ID's are being imported as string key names. So if I export entity with int ID of, for example, '62' , it gets imported as entity with string key name of '61' which screws up Django. Revelant bulkloader.yaml Fragment: property_map: - property: __key__ external_name: key export_transform: transform.key_id_or_name_as

问题 I am trying to load millions of nodes from CSV files to Titan 1.0.0 with Cassandra backend in JAVA. How to load them? I checked we can load them using BulkLoaderVertexProgram, but it loads the data from GraphSON format. How do I start writing a JAVA code to bulk load the data from CSV ? Can you specify some starting reference where I can look into and start writing code? Do I have to have Spark /Hadoop running on my system to use SparkComputerGraph which is used by Bulkloaderprogram? I am not

问题 I am still new to Python and GAE. I have an application on local server that is running just fine. I can add entity to my datastore, I can view my website, etc: everything is fine. Now I am trying to use bulkloader to add entities to my datastore. I followed the tutorial at https://developers.google.com/appengine/docs/python/tools/uploadingdata. My loader is below: from google.appengine.ext import ndb from google.appengine.tools import bulkloader import my_model class ArticleLoader(bulkloader

问题 I'm using the following to download all instances of one of my kinds: appcfg.py download_data --config_file=bulkloader.yaml --kind=ModelName --filename=ModelName.csv --url=http://appid.appspot.com/remote_api If the kind has more instances than the batch size, then I get this warning: No descending index on __key__, performing serial download I don't have any custom indexes, or any properties with indexes disabled. Do I 'need' to do something to resolve this warning, or is it just a warning I

问题 I'm using the following to download all instances of one of my kinds: appcfg.py download_data --config_file=bulkloader.yaml --kind=ModelName --filename=ModelName.csv --url=http://appid.appspot.com/remote_api If the kind has more instances than the batch size, then I get this warning: No descending index on __key__, performing serial download I don't have any custom indexes, or any properties with indexes disabled. Do I 'need' to do something to resolve this warning, or is it just a warning I

问题 Can MySqlBulkLoader be used with a transaction? I don't see a way to explicitly attach a transaction to an instance of the loader. Is there another way? 回答1: As stated here by member of MySQL documentation team: It's not atomic. The records loaded prior to the error will be in the table. Work arround is to import data to dedicated table and then execute INSERT INTO ... SELECT ... which will be atomic operation. On huge data sets this is potential problem becasue of long transaction. 回答2: The

问题 Can MySqlBulkLoader be used with a transaction? I don't see a way to explicitly attach a transaction to an instance of the loader. Is there another way? 回答1: As stated here by member of MySQL documentation team: It's not atomic. The records loaded prior to the error will be in the table. Work arround is to import data to dedicated table and then execute INSERT INTO ... SELECT ... which will be atomic operation. On huge data sets this is potential problem becasue of long transaction. 回答2: The