The number of retries here is not the same as for 500 errors; expected
behavior is a quick fail while retaining some robustness. This fix
should not reintroduce JCLOUDS-231.
This patch moves the Invokable Parameter cache to Reflection2 and adds
a convenience method for it to allow it to be shared by multiple
callers. The subsequent ability of S3Utils to use this cache results
in a ~40% improvement in performance for generating signed GETs and
PUTs for S3. This commit also converts a few others calls to
Invokable.getParameters() but the observed benefit from those was
small in microbenchmarks.
Atmos does not return a location header when writing zero-length
objects, which normally throws an HttpResponseException: no uri in
headers or content.
BlobStore.createContainerInLocation is supposed to return True if the
container was newly created and False if the container already
existed. This commit makes that happen for Swift blobstores.
By caching the results from Invokable.getParameters(), this commit
improves request signing performance (GETs and PUTs) for S3 by >
3X. These performance problems were seen in production and diagnosed
using the YourKit profiler.
Also:
- Make SwiftBlobIntegrationLiveTest.testMultipartChunkedFileStream more realistic by uploading a file large enough to be split into parts.
- JavaDoc fixes for SwiftBlobStore: don't reference nonexistent methods.
Previously this test downloaded 45 MB in 30 seconds which failed on
slower connections, causing spurious test failures. The larger input
size provides no benefit.
Previously this test uploaded ~10 MB in 30 seconds which failed on
slower connections, causing spurious test failures. The larger input
size provides no benefit.
This avoids a 'java.io.IOException: Unrecognized character: "' when a quoted ETag is encountered (which happens when getting a multipart blob from Rackspace Cloud).
Before we used the previous container name, which kept appending and
hit S3 limits during integration tests like:
Caused by: java.lang.IllegalArgumentException: Object 'gaul-blobstore27-4348532805015069992-1155797412711190448-1465016400636204031' doesn't match S3 bucket virtual host naming convention. Reason: Can't be null or empty. Length must be 3 to 63 symbols.. For more info, please refer to http://docs.amazonwebservices.com/AmazonS3/latest/index.html?BucketRestrictions.html