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https://issues.apache.org/jira/browse/HADOOP-17347?focusedWorklogId=533576&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-533576
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ASF GitHub Bot logged work on HADOOP-17347:
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Author: ASF GitHub Bot
Created on: 10/Jan/21 03:57
Start Date: 10/Jan/21 03:57
Worklog Time Spent: 10m
Work Description: steveloughran commented on pull request #2464:
URL: https://github.com/apache/hadoop/pull/2464#issuecomment-756759257
It's moot now that the PR is merged, but can I remind everyone
## Add a meaningful message to assertTrue/assertFalse asserts
Imagine that you are trying to debug a test run from an automated build. All
you have is that an assert failed on a given line. Does that provide enough
information to diagnose the problem? Or would you need extra information? If
so: what information should be included?
It's OK to use assertJ's assertThat, which is where new tests are going.
It's a bit more verbose but its assertions are very informative and easily
extensible. If you haven't used the library yet -it's on the classpath, try
using its assertions in new test suites.
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Issue Time Tracking
-------------------
Worklog Id: (was: 533576)
Time Spent: 12.5h (was: 12h 20m)
> ABFS: Optimise read for small files/tails of files
> --------------------------------------------------
>
> Key: HADOOP-17347
> URL: https://issues.apache.org/jira/browse/HADOOP-17347
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/azure
> Affects Versions: 3.4.0
> Reporter: Bilahari T H
> Assignee: Bilahari T H
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 12.5h
> Remaining Estimate: 0h
>
> Optimize read performance for the following scenarios
> # Read small files completely
> Files that are of size smaller than the read buffer size can be considered
> as small files. In case of such files it would be better to read the full
> file into the AbfsInputStream buffer.
> # Read last block if the read is for footer
> If the read is for the last 8 bytes, read the full file.
> This will optimize reads for parquet files. [Parquet file
> format|https://www.ellicium.com/parquet-file-format-structure/]
> Both these optimizations will be present under configs as follows
> # fs.azure.read.smallfilescompletely
> # fs.azure.read.optimizefooterread
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