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https://issues.apache.org/jira/browse/HDFS-3457?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13285374#comment-13285374
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J.Andreina commented on HDFS-3457:
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Hi Aaron,
Thanks for looking into this defect.
Actually i raised this defect pointing to following two issues
(1) Number of Underreplicated blocks
(2) Number of files
displayed in UI and fsck report is different
But as Ashish has commented : Number of files displayed in UI and fsck report
is proper and i too agree with that.
But still the number of underreplicated blocks are different in UI and fsck
.Please let me know why this is happening.
> Number of UnderReplicated blocks displayed in UI and Fsck report is different
> -----------------------------------------------------------------------------
>
> Key: HDFS-3457
> URL: https://issues.apache.org/jira/browse/HDFS-3457
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.0.0-alpha
> Reporter: J.Andreina
> Priority: Minor
> Attachments: Mismatch in Number of Underreplicated blocks UI.jpg,
> Mismatch in number of files UI.jpg
>
>
> Scenario:
> =========
> Write an HDFS application with the following sequence of operations
> 1. Create file.
> 2. Append and sync file.
> 3. Delete file.
> 4. Create file.
> 5. Rename file.
> Run the application using 50 threads for 4 hours.
> Next Run the same application using 200 threads for the next 4 hours.
> Next Run the application using 50 threads for the next 4 hours.
> The Number of under-Replicated blocks mentioned in the UI and fsck report
> differs
> Fsck report for the mismatch in Number of under-Replicated blocks :
> ===================================================================
> Status: HEALTHY
> Total size: 5670200922 B
> Total dirs: 2
> Total files: 2015
> Total blocks (validated): 977 (avg. block size 5803685 B)
> Minimally replicated blocks: 977 (100.0 %)
> Over-replicated blocks: 0 (0.0 %)
> Under-replicated blocks: 94 (9.621289 %)
> Mis-replicated blocks: 0 (0.0 %)
> Default replication factor: 2
> Average block replication: 1.9037871
> Corrupt blocks: 0
> Missing replicas: 94 (5.0537634 %)
> Number of data-nodes: 3
> Number of racks: 1
> FSCK ended at Mon Mar 19 11:14:41 IST 2012 in 94 milliseconds
> The filesystem under path '/' is HEALTHY
> Have attached UI screenshot for this issue
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