Mailing-List: contact hdfs-dev-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Date: Thu, 1 Sep 2016 10:28:20 +0000 (UTC)
From: "Takanobu Asanuma (JIRA)" <jira@apache.org>
To: hdfs-dev@hadoop.apache.org
Message-ID: <JIRA.13001964.1472725665000.467983.1472725700452@Atlassian.JIRA>
In-Reply-To: <JIRA.13001964.1472725665000@Atlassian.JIRA>
References: <JIRA.13001964.1472725665000@Atlassian.JIRA> <JIRA.13001964.1472725665959@arcas>
Subject: [jira] [Created] (HDFS-10826) The result of fsck should be CRITICAL
 when there are unrecoverable ec block groups.
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
archived-at: Thu, 01 Sep 2016 10:28:27 -0000

Takanobu Asanuma created HDFS-10826:
---------------------------------------

             Summary: The result of fsck should be CRITICAL when there are unrecoverable ec block groups.
                 Key: HDFS-10826
                 URL: https://issues.apache.org/jira/browse/HDFS-10826
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Takanobu Asanuma
            Assignee: Takanobu Asanuma


For RS-6-3, when there is one ec block group and
1) 0~3 of 9 internal blocks are missing, the result of fsck is HEALTY.
2) 4~8 of 9 internal blocks are missing, the result of fsck is HEALTY.
{noformat}
Erasure Coded Block Groups:
 Total size:    536870912 B
 Total files:   1
 Total block groups (validated):        1 (avg. block group size 536870912 B)
  ********************************
  UNRECOVERABLE BLOCK GROUPS:   1 (100.0 %)
  ********************************
 Minimally erasure-coded block groups:  0 (0.0 %)
 Over-erasure-coded block groups:       0 (0.0 %)
 Under-erasure-coded block groups:      1 (100.0 %)
 Unsatisfactory placement block groups: 0 (0.0 %)
 Default ecPolicy:              RS-DEFAULT-6-3-64k
 Average block group size:      5.0
 Missing block groups:          0
 Corrupt block groups:          0
 Missing internal blocks:       4 (44.444443 %)
FSCK ended at Wed Aug 31 13:42:05 JST 2016 in 4 milliseconds

The filesystem under path '/' is HEALTHY
{noformat}
3) 9 of 9 internal blocks are missing, the result of fsck is CRITICAL. (Because it is regarded as a missing block group.)

In case 2), the result should be CRITICAL since the ec block group is unrecoverable.


--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscribe@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-help@hadoop.apache.org