Thomas created HADOOP-14546:
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Summary: [WASB] Concurrent I/O does not work when secure.mode is
enabled.
Key: HADOOP-14546
URL: https://issues.apache.org/jira/browse/HADOOP-14546
Project: Hadoop Common
Issue Type: Bug
Components: fs/azure
Affects Versions: 2.9.0, 3.0.0-alpha4
Reporter: Thomas
Assignee: Thomas
Fix For: 2.9.0, 3.0.0-alpha4
This change allows the concurrent I/O feature
(fs.azure.io.read.tolerate.concurrent.append = true) to work when secure mode
is enabled (fs.azure.secure.mode = true).
While running the test TestAzureConcurrentOutOfBandIo.testReadOOBWrites, I
discovered that it fails when fs.azure.secure.mode = true with the error below:
com.microsoft.azure.storage.StorageException: The condition specified using
HTTP conditional header(s) is not met.
at com.microsoft.azure.storage.core.Utility.initIOException(Utility.java:733)
at
com.microsoft.azure.storage.blob.BlobInputStream.dispatchRead(BlobInputStream.java:264)
at
com.microsoft.azure.storage.blob.BlobInputStream.readInternal(BlobInputStream.java:448)
at
com.microsoft.azure.storage.blob.BlobInputStream.read(BlobInputStream.java:420)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:284)
at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
at java.io.DataInputStream.read(DataInputStream.java:149)
at
org.apache.hadoop.fs.azure.TestAzureConcurrentOutOfBandIo.testReadOOBWrites(TestAzureConcurrentOutOfBandIo.java:167)
There were a couple problems causing this failure:
1) AzureNativeFileSystemStore.connectToAzureStorageInSecureMode was disabling
concurrent I/O by setting fs.azure.io.read.tolerate.concurrent.append to false.
2) SendRequestIntercept was unnecessarily updating the SAS for the request.
Since this intercept only sets the request header "If-Match: *" to override the
existing recondition, it is not necessary to update the SAS.
The above issues have been fixed and a new test case has been added so that
testReadOOBWrites now runs both with and without secure mode enabled.
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