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https://issues.apache.org/jira/browse/HADOOP-18632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17691470#comment-17691470
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ASF GitHub Bot commented on HADOOP-18632:
-----------------------------------------
sreeb-msft commented on code in PR #5399:
URL: https://github.com/apache/hadoop/pull/5399#discussion_r1112771893
##########
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/TimeoutOptimizer.java:
##########
@@ -0,0 +1,227 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.fs.azurebfs.services;
+
+import org.apache.hadoop.fs.azurebfs.AbfsConfiguration;
+import org.apache.hadoop.fs.azurebfs.constants.ConfigurationKeys;
+import org.apache.hadoop.fs.azurebfs.constants.HttpQueryParams;
+import org.apache.http.client.utils.URIBuilder;
+
+import java.net.MalformedURLException;
+import java.net.URISyntaxException;
+import java.net.URL;
+
+import static
org.apache.hadoop.fs.azurebfs.constants.AbfsHttpConstants.DEFAULT_TIMEOUT;
+
+public class TimeoutOptimizer {
+ AbfsConfiguration abfsConfiguration;
+ private URL url;
+ private AbfsRestOperationType opType;
+ private ExponentialRetryPolicy retryPolicy;
+ private int requestTimeout;
+ private int readTimeout = -1;
+ private int connTimeout = -1;
+ private int maxReqTimeout;
+ private int timeoutIncRate;
+ private boolean shouldOptimizeTimeout;
+
+ public TimeoutOptimizer(URL url, AbfsRestOperationType opType,
ExponentialRetryPolicy retryPolicy, AbfsConfiguration abfsConfiguration) {
+ this.url = url;
+ this.opType = opType;
+ if (opType != null) {
+ this.retryPolicy = retryPolicy;
+ this.abfsConfiguration = abfsConfiguration;
+ if
(abfsConfiguration.get(ConfigurationKeys.AZURE_OPTIMIZE_TIMEOUTS) == null) {
+ this.shouldOptimizeTimeout = false;
+ }
+ else {
+ this.shouldOptimizeTimeout =
Boolean.parseBoolean(abfsConfiguration.get(ConfigurationKeys.AZURE_OPTIMIZE_TIMEOUTS));
+ }
+ if (this.shouldOptimizeTimeout) {
+ this.maxReqTimeout =
Integer.parseInt(abfsConfiguration.get(ConfigurationKeys.AZURE_MAX_REQUEST_TIMEOUT));
+ this.timeoutIncRate =
Integer.parseInt(abfsConfiguration.get(ConfigurationKeys.AZURE_REQUEST_TIMEOUT_INCREASE_RATE));
+ initTimeouts();
+ updateUrl();
+ }
+
+ } else {
+ this.shouldOptimizeTimeout = false;
+ }
+ }
+
+ public void updateRetryTimeout(int retryCount) {
+ if (!this.shouldOptimizeTimeout) {
+ return;
+ }
+
+ // update all timeout values
+ updateTimeouts(retryCount);
+ updateUrl();
+ }
+
+ public URL getUrl() {
+ return url;
+ }
+ public boolean getShouldOptimizeTimeout() { return
this.shouldOptimizeTimeout; }
+
+ public int getRequestTimeout() { return requestTimeout; }
+
+ public int getReadTimeout() {
+ return readTimeout;
+ }
+
+ public int getReadTimeout(final int defaultTimeout) {
+ if (readTimeout != -1 && shouldOptimizeTimeout) {
+ return readTimeout;
+ }
+ return defaultTimeout;
+ }
+
+ public int getConnTimeout() {
+ return connTimeout;
+ }
+
+ public int getConnTimeout(final int defaultTimeout) {
+ if (connTimeout == -1) {
+ return defaultTimeout;
+ }
+ return connTimeout;
+ }
+
+ private void initTimeouts() {
+ if (!shouldOptimizeTimeout) {
+ requestTimeout = -1;
+ readTimeout = -1;
+ connTimeout = -1;
+ return;
+ }
+
+ String query = url.getQuery();
+ int timeoutPos = query.indexOf("timeout");
+ if (timeoutPos < 0) {
Review Comment:
Understood, thanks!
> ABFS: Customize and optimize timeouts made based on each separate request
> -------------------------------------------------------------------------
>
> Key: HADOOP-18632
> URL: https://issues.apache.org/jira/browse/HADOOP-18632
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/azure
> Reporter: Sree Bhattacharyya
> Assignee: Sree Bhattacharyya
> Priority: Minor
> Labels: pull-request-available
>
> In present day ABFS Driver functioning, all API request calls use the same
> values of default timeouts. This is sub-optimal in the scenarios where a
> request is failing due to hitting a particular busy node, and would benefit
> simply by retrying quicker.
> For this, the change to be brought in chooses customized timeouts based on
> which API call is being made. Further, starting with smaller, optimized
> values of timeouts, the timeout values would increase by a certain
> incremental factor for subsequent retries to ensure quicker retries and
> success.
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