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Date: Tue, 19 Jul 2016 16:46:21 +0000 (UTC)
From: "Steve Loughran (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: =?utf-8?Q?[jira]_[Updated]_(HADOOP-13387)_users_always_ge?=
 =?utf-8?Q?t_told_off_for_using_S3_=E2=80=94even_when_not_using_it.?=
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archived-at: Tue, 19 Jul 2016 16:46:24 -0000


     [ https://issues.apache.org/jira/browse/HADOOP-13387?page=3Dcom.atlass=
ian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steve Loughran updated HADOOP-13387:
------------------------------------
    Attachment: HADOOP-13887-branch-2-001.patch

code, no tests.

Evidence it works from the output of one of the tests
{code}
2016-07-19 17:39:07,033 [Thread-0] WARN  fs.FileSystem (S3FileSystem.java:w=
arnDeprecation(84)) - S3FileSystem is deprecated and will be removed in fut=
ure releases. Use NativeS3FileSystem or S3AFileSystem instead.
2016-07-19 17:39:07,105 [Thread-0] INFO  contract.AbstractFSContractTestBas=
e (AbstractFSContractTestBase.java:setup(172)) - Test filesystem =3D s3://h=
wdev-steve-new implemented by org.apache.hadoop.fs.s3.S3FileSystem@79791d72
2016-07-19 17:39:12,207 [Thread-0] INFO  contract.AbstractFSContractTestBas=
e (AbstractFSContractTestBase.java:describe(240)) - readFully zero bytes fr=
om an offset past EOF
2016-07-19 17:39:12,371 [Thread-0] INFO  contract.AbstractContractSeekTest =
(AbstractContractSeekTest.java:testReadFullyZeroBytebufferPastEOF(504)) - F=
ilesystem short-circuits 0-byte reads
{code}

The message is printed once only.

> users always get told off for using S3 =E2=80=94even when not using it.
> ---------------------------------------------------------------
>
>                 Key: HADOOP-13387
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13387
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs/s3
>    Affects Versions: 2.8.0
>            Reporter: Steve Loughran
>         Attachments: HADOOP-13887-branch-2-001.patch
>
>
> The warning telling people not to use s3 appears during filesystem initia=
lization -even if you aren't using the FS. This is because it is printed du=
ring static initialization, and when the FS code loads all available filesy=
stems, that static code is inited.
> It needs to be moved into the init() code of an instance


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