Insufficient System resources exist to complete the requested services

Question

Getting the above error when trying to download large data using HttpGet

String uri = "";
getMethod = executeGet(uri);
httpClient.executeMethod(getMethod);
InputStream istream  = getMethod.getResponseBodyAsStream();
byte[] data = IOUtils.toByteArray(istream);
FileUtils.writeByteArraytoFile(new  File("xxx.zip"),data)

Please format your code when you asking question. – Ruchira Gayan Ranaweera Oct 06 '14 at 11:55 — Ruchira Gayan Ranaweera, Oct 06 '14 at 11:55
at which line exactly does the error occur? – SME_Dev Oct 06 '14 at 12:00 — SME_Dev, Oct 06 '14 at 12:00

score 1 · Answer 1 · answered Oct 06 '14 at 12:01

You are using a temporary byte array that might be the cause of the problem. You can directly write the content of the stream to your file.

String uri = "";
getMethod = executeGet(uri);
httpClient.executeMethod(getMethod);
InputStream istream  = getMethod.getResponseBodyAsStream();
IOUtils.copy(istream, new FileOutputStream(new  File("xxx.zip"));

score 1 · Answer 2 · answered Oct 06 '14 at 12:01

You're reading the entire response into the byte[] (memory). Instead, you could stream the output as you read it from istream with something like,

File f = new  File("xxx.zip");
try (OutputStream os = new BufferedOutputStream(new FileOutputStream(f));) {
    int c = -1;
    while ((c = istream.read()) != -1) {
        os.write(c);
    }
} catch (Exception e) {
    e.printStackTrace();
}

Insufficient System resources exist to complete the requested services

2 Answers2