spring-batch

问题 I am developing a Spring Batch App - How to understand or write code for ? Identify which chunk has failed in chunk based step? How to identify if reader query taking how much time? 回答1: Identify which chunk has failed in chunk based step? A ChunkListener allows you to achieve that. The method afterChunkError will be called when an error occurs in a given chunk How to identify if reader query taking how much time? It depends on the reader. ItemReadListener is called around each read operation

问题 I am developing a Spring Batch App - How to understand or write code for ? Identify which chunk has failed in chunk based step? How to identify if reader query taking how much time? 回答1: Identify which chunk has failed in chunk based step? A ChunkListener allows you to achieve that. The method afterChunkError will be called when an error occurs in a given chunk How to identify if reader query taking how much time? It depends on the reader. ItemReadListener is called around each read operation

问题 I am developing a Spring Batch App - How to understand or write code for ? Identify which chunk has failed in chunk based step? How to identify if reader query taking how much time? 回答1: Identify which chunk has failed in chunk based step? A ChunkListener allows you to achieve that. The method afterChunkError will be called when an error occurs in a given chunk How to identify if reader query taking how much time? It depends on the reader. ItemReadListener is called around each read operation

问题 I'm using it today to cache objects between steps so that I don't have to build the entire job in a single step. At first, since my Steps were not annotated with any scope (though it's hard to make sense of them not implicitly being @JobScope ) I ran into some gnarly unit testing issues claiming: Scope 'job' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No

问题 I've developed a Spring Batch App with the Postgres and particularly facing slow write to database issue for 3 Steps out of 20 steps. I'd like to share example which is taking most time among three. Below is the table where I'm writing data and data count is 2,33,382 . I'm using Spring JDBC and in particular NamedParameterJdbcTemplate to perform the Batch update. CREATE TABLE test.country ( last_update_date date NULL, src_system varchar(20) NULL, country_id varchar(255) NULL, app_id varchar

问题 I want to use Spring Batch (v3.0.9) restart functionality so that when JobInstance restarted the process step reads from the last failed chunk point forward. My restart works fine as long as I don't use @StepScope annotation to my myBatisPagingItemReader bean method. I was using @StepScope so that i can do late binding to get the JobParameters in my myBatisPagingItemReader bean method @Value("#{jobParameters['run-date']}")) If I use @StepScope annotation on myBatisPagingItemReader() bean

问题 I have created spring cloud task tables i.e. TASK_EXECUTION , TASK_TASK_BATCH with prefix as MYTASK_ and spring batch Tables with prefix MYBATCH_ in oracle database. There are default tables also there in the same schema which got created automatically or by other team mate. I have bound my Oracle database service to SCDF server deployed on PCF . How can i tell my Spring Cloud Dataflow server to use tables created with my prefix to render data on dataflow server dashboard? Currently, SCDF

问题 I'm using Spring Boot and Spring Batch to read data from One table of source database table and split the data and write it into two tables of target database. I choose to use CompositeItemWriter for this, but CompositeItemWriter<?> only one type. I want to write few fields in one table and other fields into another table. Say: OLD Customer and NEW Customer. Error: The constructor CustomerClassifier(JdbcBatchItemWriter, JdbcBatchItemWriter) is undefined ClassifierCompositeItemApplication.java

问题 Background I am working on designing a file reading layer that can read delimited files and load it in a List . I have decided to use Spring Batch because it provides a lot of scalability options which I can leverage for different sets of files depending on their size. The requirement I want to design a generic Job API that can be used to read any delimited file. There should be a single Job structure that should be used for parsing every delimited file. For example, if the system needs to

问题 Background I am working on designing a file reading layer that can read delimited files and load it in a List . I have decided to use Spring Batch because it provides a lot of scalability options which I can leverage for different sets of files depending on their size. The requirement I want to design a generic Job API that can be used to read any delimited file. There should be a single Job structure that should be used for parsing every delimited file. For example, if the system needs to