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https://issues.apache.org/jira/browse/HADOOP-17527?focusedWorklogId=556450&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-556450
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ASF GitHub Bot logged work on HADOOP-17527:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 23/Feb/21 16:42
Start Date: 23/Feb/21 16:42
Worklog Time Spent: 10m
Work Description: sumangala-patki commented on a change in pull request
#2698:
URL: https://github.com/apache/hadoop/pull/2698#discussion_r581199945
##########
File path:
hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azurebfs/ITestAbfsInputStreamStatistics.java
##########
@@ -100,28 +100,31 @@ public void testSeekStatistics() throws IOException {
AbfsOutputStream out = null;
AbfsInputStream in = null;
+ int readBufferSize = getConfiguration().getReadBufferSize();
+ byte[] buf = new byte[readBufferSize + 1];
Review comment:
To allow seek to position readBufferSize
Example: readBufferSize = 4, then buf size = 5 => 5 bytes are written to
file and valid indices in file are [0 1 2 3 4]
Read call will read readBufferSize bytes, i.e., 4 bytes (up to and incl
position 3 in file) so fcursor is now at position 4.
To be counted as a forward seek, any subsequent seek has to be to a position
>= current fcursor (4). Hence, the file should have at least 4 + 1 = 5 bytes
for seek(4) to be allowed
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Issue Time Tracking
-------------------
Worklog Id: (was: 556450)
Time Spent: 3h 40m (was: 3.5h)
> ABFS: Fix boundary conditions in InputStream seek and skip
> ----------------------------------------------------------
>
> Key: HADOOP-17527
> URL: https://issues.apache.org/jira/browse/HADOOP-17527
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/azure
> Affects Versions: 3.3.0
> Reporter: Sumangala Patki
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3h 40m
> Remaining Estimate: 0h
>
> Modify AbfsInputStream seek method to throw EOF exception on seek to
> contentLength for a non-empty file. With this change, it will no longer be
> possible for the inputstream position (as obtained by getPos() API) to be
> moved to contentlength manually, except post reading the last byte.
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