[
https://issues.apache.org/jira/browse/HADOOP-16948?focusedWorklogId=566573&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-566573
]
ASF GitHub Bot logged work on HADOOP-16948:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 15/Mar/21 22:00
Start Date: 15/Mar/21 22:00
Worklog Time Spent: 10m
Work Description: billierinaldi commented on a change in pull request
#1925:
URL: https://github.com/apache/hadoop/pull/1925#discussion_r594712911
##########
File path:
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/SelfRenewingLease.java
##########
@@ -0,0 +1,218 @@
+/**
+ * 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 java.io.IOException;
+import java.net.HttpURLConnection;
+import java.util.concurrent.CancellationException;
+import java.util.concurrent.TimeUnit;
+
+import
org.apache.hadoop.thirdparty.com.google.common.util.concurrent.FutureCallback;
+import
org.apache.hadoop.thirdparty.com.google.common.util.concurrent.ListenableScheduledFuture;
+import
org.apache.hadoop.thirdparty.org.checkerframework.checker.nullness.qual.Nullable;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import org.apache.hadoop.fs.azurebfs.constants.HttpHeaderConfigurations;
+import
org.apache.hadoop.fs.azurebfs.contracts.exceptions.AbfsRestOperationException;
+import
org.apache.hadoop.fs.azurebfs.contracts.exceptions.AzureBlobFileSystemException;
+import org.apache.hadoop.io.retry.RetryPolicies;
+import org.apache.hadoop.io.retry.RetryPolicy;
+
+import static
org.apache.hadoop.fs.azurebfs.constants.FileSystemConfigurations.INFINITE_LEASE_DURATION;
+import static
org.apache.hadoop.fs.azurebfs.services.AbfsErrors.ERR_ACQUIRING_LEASE;
+import static
org.apache.hadoop.fs.azurebfs.services.AbfsErrors.ERR_LEASE_FUTURE_EXISTS;
+import static
org.apache.hadoop.fs.azurebfs.services.AbfsErrors.ERR_NO_LEASE_THREADS;
+
+/**
+ * An Azure blob lease that automatically renews itself indefinitely by
scheduling lease
+ * operations through the ABFS client. Use it to prevent writes to the blob by
other processes
+ * that don't have the lease.
+ *
+ * Creating a new Lease object blocks the caller until the Azure blob lease is
acquired. It will
+ * retry a fixed number of times before failing if there is a problem
acquiring the lease.
+ *
+ * Call free() to release the Lease. If the holder process dies, the lease
will time out since it
+ * won't be renewed.
+ */
+public final class SelfRenewingLease {
+ private static final Logger LOG =
LoggerFactory.getLogger(SelfRenewingLease.class);
+
Review comment:
So, does the property name fs.azure.singlewriter.directories still make
sense, or should it be changed to something else such as
fs.azure.infinite-lease-directories?
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
Issue Time Tracking
-------------------
Worklog Id: (was: 566573)
Time Spent: 5h 20m (was: 5h 10m)
> ABFS: Support single writer dirs
> --------------------------------
>
> Key: HADOOP-16948
> URL: https://issues.apache.org/jira/browse/HADOOP-16948
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Billie Rinaldi
> Assignee: Billie Rinaldi
> Priority: Minor
> Labels: abfsactive, pull-request-available
> Time Spent: 5h 20m
> Remaining Estimate: 0h
>
> This would allow some directories to be configured as single writer
> directories. The ABFS driver would obtain a lease when creating or opening a
> file for writing and would automatically renew the lease and release the
> lease when closing the file.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: common-issues-h...@hadoop.apache.org
