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https://issues.apache.org/jira/browse/HADOOP-18640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17697233#comment-17697233
]
ASF GitHub Bot commented on HADOOP-18640:
-----------------------------------------
saxenapranav commented on code in PR #5446:
URL: https://github.com/apache/hadoop/pull/5446#discussion_r1127368834
##########
hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azurebfs/services/TestExponentialRetryPolicy.java:
##########
@@ -285,6 +299,154 @@ public void testAbfsConfigConstructor() throws Exception {
Assert.assertEquals("Delta backoff interval was not set as expected.",
expectedDeltaBackoff, policy.getDeltaBackoff());
}
+// public void testClientBackoffOnlyNewRequest() throws IOException {
+ @Test
+ public void testClientBackoffOnlyNewWriteRequest() throws IOException,
InterruptedException {
+ AzureBlobFileSystem fs = getFileSystem();
+ AbfsClient client = fs.getAbfsStore().getClient();
+ AbfsConfiguration configuration = client.getAbfsConfiguration();
+ Assume.assumeTrue(configuration.isAutoThrottlingEnabled());
+ AbfsCounters counters = client.getAbfsCounters();
+
+ URL dummyUrl = client.createRequestUrl("/", "");
+ String dummyMethod = HTTP_METHOD_PUT;
+
+ AbfsRestOperationType testOperationType = AbfsRestOperationType.Append;
+
+ AbfsRestOperation restOp = new AbfsRestOperation(testOperationType,
client, dummyMethod, dummyUrl, new ArrayList<>());
+
+ Long writeThrottleStatBefore =
counters.toMap().get(AbfsStatistic.WRITE_THROTTLES.getStatName());
+ Thread.sleep(10000);
+ boolean appliedBackoff = restOp.applyThrottlingBackoff(0,
testOperationType, counters);
+ assertEquals(true, appliedBackoff);
+ Long writeThrottleStatAfter =
counters.toMap().get(AbfsStatistic.WRITE_THROTTLES.getStatName());
+ assertEquals(new Long(writeThrottleStatBefore+1), writeThrottleStatAfter);
+
+
+ writeThrottleStatBefore =
counters.toMap().get(AbfsStatistic.WRITE_THROTTLES.getStatName());
+ appliedBackoff = restOp.applyThrottlingBackoff(1, testOperationType,
counters);
+ assertEquals(false, appliedBackoff);
+ writeThrottleStatAfter =
counters.toMap().get(AbfsStatistic.WRITE_THROTTLES.getStatName());
+ assertEquals(writeThrottleStatBefore, writeThrottleStatAfter);
+ }
+
+ @Test
+ public void testClientBackoffOnlyNewReadRequest() throws IOException,
InterruptedException {
+ AzureBlobFileSystem fs = getFileSystem();
+ AbfsClient client = fs.getAbfsStore().getClient();
+ AbfsConfiguration configuration = client.getAbfsConfiguration();
+ Assume.assumeTrue(configuration.isAutoThrottlingEnabled());
+ AbfsCounters counters = client.getAbfsCounters();
+
+ URL dummyUrl = client.createRequestUrl("/", "");
+ String dummyMethod = AbfsHttpConstants.HTTP_METHOD_GET;
+
+ AbfsRestOperationType testOperationType = AbfsRestOperationType.ReadFile;
+
+ AbfsRestOperation restOp = new AbfsRestOperation(testOperationType,
client, dummyMethod, dummyUrl, new ArrayList<>());
+
+ Long readThrottleStatBefore =
counters.toMap().get(AbfsStatistic.READ_THROTTLES.getStatName());
+ Thread.sleep(10000);
+ boolean appliedBackoff = restOp.applyThrottlingBackoff(0,
testOperationType, counters);
+ assertEquals(true, appliedBackoff);
+ Long readThrottleStatAfter =
counters.toMap().get(AbfsStatistic.READ_THROTTLES.getStatName());
+ assertEquals(new Long(readThrottleStatBefore+1), readThrottleStatAfter);
+
+
+ readThrottleStatBefore =
counters.toMap().get(AbfsStatistic.READ_THROTTLES.getStatName());
+ appliedBackoff = restOp.applyThrottlingBackoff(1, testOperationType,
counters);
+ assertEquals(false, appliedBackoff);
+ readThrottleStatAfter =
counters.toMap().get(AbfsStatistic.READ_THROTTLES.getStatName());
+ assertEquals(readThrottleStatBefore, readThrottleStatAfter);
+ }
+
+ @Test
+ public void testReadThrottleNewRequest() throws IOException {
+ AzureBlobFileSystem fs = getFileSystem();
+ AbfsClient client = Mockito.spy(fs.getAbfsStore().getClient());
+ AbfsConfiguration configuration = client.getAbfsConfiguration();
+ Assume.assumeTrue(configuration.isAutoThrottlingEnabled());
+ AbfsCounters counters = client.getAbfsCounters();
+
+ AbfsThrottlingIntercept intercept =
Mockito.mock(AbfsThrottlingIntercept.class);
+
Mockito.doNothing().when(intercept).sendingRequest(Mockito.any(AbfsRestOperationType.class),
Mockito.any(AbfsCounters.class));
+ Mockito.doReturn(intercept).when(client).getIntercept();
+
+ // setting up the spy AbfsRestOperation class for read
+ final List<AbfsHttpHeader> requestHeaders = client.createDefaultHeaders();
+
+ final AbfsUriQueryBuilder abfsUriQueryBuilder =
client.createDefaultUriQueryBuilder();
+
+ final URL url = client.createRequestUrl("/dummyReadFile",
abfsUriQueryBuilder.toString());
+ final AbfsRestOperation mockRestOp = Mockito.spy(new AbfsRestOperation(
+ AbfsRestOperationType.ReadFile,
+ client,
+ HTTP_METHOD_GET,
+ url,
+ requestHeaders));
+
+ // setting up mock behavior for the AbfsHttpOperation class
+ AbfsHttpOperation mockHttpOp =
Mockito.spy(mockRestOp.createHttpOperationInstance());
Review Comment:
everything is possible :). Bit of debug is required. Please merge
https://github.com/sreeb-msft/hadoop/pull/1 in your pr.
> ABFS: Enabling Client-side Backoff only for new requests
> --------------------------------------------------------
>
> Key: HADOOP-18640
> URL: https://issues.apache.org/jira/browse/HADOOP-18640
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/azure
> Reporter: Sree Bhattacharyya
> Assignee: Sree Bhattacharyya
> Priority: Minor
> Labels: pull-request-available
>
> Enabling backoff only for new requests that happen, and disabling for retried
> requests.
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