What happens when multiple request occurs in a @async annotated function?
up vote
1
down vote
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if already a request is processing and a new request occurred at same time
into a @async annotated function lets say:
public String importData(ImportRequest requestBody)
{
File file = new File(path.toString() + "/" +
requestBody.getFileName() + ".xlsx");
FileInputStream fis = new FileInputStream(file);
XSSFWorkbook workbook = new XSSFWorkbook(fis);
//Iterate through each rows one by one
Iterator<Row> rowIterator = sheet.iterator();
while (rowIterator.hasNext()) {
saveDataFromFileToDb();
}
}
if a file has 1000 rows and its still processing in background, and
suddenly one more request arrives then what happens.
java asynchronous
asked Nov 22 at 8:31
aditya soni
357
add a comment |
up vote
1
down vote
favorite
if already a request is processing and a new request occurred at same time
into a @async annotated function lets say:
public String importData(ImportRequest requestBody)
{
File file = new File(path.toString() + "/" +
requestBody.getFileName() + ".xlsx");
FileInputStream fis = new FileInputStream(file);
XSSFWorkbook workbook = new XSSFWorkbook(fis);
//Iterate through each rows one by one
Iterator<Row> rowIterator = sheet.iterator();
while (rowIterator.hasNext()) {
saveDataFromFileToDb();
}
}
if a file has 1000 rows and its still processing in background, and
suddenly one more request arrives then what happens.
java asynchronous
asked Nov 22 at 8:31
aditya soni
357
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
if already a request is processing and a new request occurred at same time
into a @async annotated function lets say:
public String importData(ImportRequest requestBody)
{
File file = new File(path.toString() + "/" +
requestBody.getFileName() + ".xlsx");
FileInputStream fis = new FileInputStream(file);
XSSFWorkbook workbook = new XSSFWorkbook(fis);
//Iterate through each rows one by one
Iterator<Row> rowIterator = sheet.iterator();
while (rowIterator.hasNext()) {
saveDataFromFileToDb();
}
}
if a file has 1000 rows and its still processing in background, and
suddenly one more request arrives then what happens.
java asynchronous
asked Nov 22 at 8:31
aditya soni
357
if already a request is processing and a new request occurred at same time
into a @async annotated function lets say:
public String importData(ImportRequest requestBody)
{
File file = new File(path.toString() + "/" +
requestBody.getFileName() + ".xlsx");
FileInputStream fis = new FileInputStream(file);
XSSFWorkbook workbook = new XSSFWorkbook(fis);
//Iterate through each rows one by one
Iterator<Row> rowIterator = sheet.iterator();
while (rowIterator.hasNext()) {
saveDataFromFileToDb();
}
}
if a file has 1000 rows and its still processing in background, and
suddenly one more request arrives then what happens.
java asynchronous
java asynchronous
asked Nov 22 at 8:31
aditya soni
357
asked Nov 22 at 8:31
aditya soni
357
asked Nov 22 at 8:31
aditya soni
357
asked Nov 22 at 8:31
aditya soni
357
asked Nov 22 at 8:31
aditya soni
357
357
add a comment |
add a comment |
1 Answer
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2
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It will kick off another thread trying to do the same. But you could configure a single-thread executor. Your task will still be executed twice, but not in parallel.
You are talking about Spring's @Async annotation, right?
answered Nov 22 at 8:36
Mick
396210
Yup, talking about spring @Async annotation. how could i implement single-thread executor.
– aditya soni
Nov 25 at 6:30
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
It will kick off another thread trying to do the same. But you could configure a single-thread executor. Your task will still be executed twice, but not in parallel.
You are talking about Spring's @Async annotation, right?
answered Nov 22 at 8:36
Mick
396210
Yup, talking about spring @Async annotation. how could i implement single-thread executor.
– aditya soni
Nov 25 at 6:30
add a comment |
up vote
2
down vote
It will kick off another thread trying to do the same. But you could configure a single-thread executor. Your task will still be executed twice, but not in parallel.
You are talking about Spring's @Async annotation, right?
answered Nov 22 at 8:36
Mick
396210
Yup, talking about spring @Async annotation. how could i implement single-thread executor.
– aditya soni
Nov 25 at 6:30
add a comment |
up vote
2
down vote
up vote
2
down vote
It will kick off another thread trying to do the same. But you could configure a single-thread executor. Your task will still be executed twice, but not in parallel.
You are talking about Spring's @Async annotation, right?
answered Nov 22 at 8:36
Mick
396210
It will kick off another thread trying to do the same. But you could configure a single-thread executor. Your task will still be executed twice, but not in parallel.
You are talking about Spring's @Async annotation, right?
answered Nov 22 at 8:36
Mick
396210
answered Nov 22 at 8:36
Mick
396210
answered Nov 22 at 8:36
Mick
396210
answered Nov 22 at 8:36
Mick
396210
396210
Yup, talking about spring @Async annotation. how could i implement single-thread executor.
– aditya soni
Nov 25 at 6:30
add a comment |
Yup, talking about spring @Async annotation. how could i implement single-thread executor.
– aditya soni
Nov 25 at 6:30
Yup, talking about spring @Async annotation. how could i implement single-thread executor.
– aditya soni
Nov 25 at 6:30
Yup, talking about spring @Async annotation. how could i implement single-thread executor.
– aditya soni
Nov 25 at 6:30
add a comment |
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