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Kihwal Lee commented on HDFS-11817:
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*Details of the NPE:*
The JVM did produce a stacktrace on the very
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Kihwal Lee updated HDFS-11641:
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Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 2.8.2
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Kihwal Lee commented on HDFS-11641:
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Please provide a patch for branch-2. With the EC-related portion
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Kihwal Lee commented on HDFS-11641:
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+1 the latest patch looks good.
> Reduce cost of audit logging by
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Kihwal Lee updated HDFS-11641:
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Target Version/s: 2.8.2 (was: 2.8.1)
> Reduce cost of audit logging by using FileStatus instead of
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Kihwal Lee commented on HDFS-11820:
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bq. Thread #2 catches up, and acquires same instance of RenameOp,
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Kihwal Lee commented on HDFS-11820:
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Write lock ensures there is only one thread calling logEdit() at
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Kihwal Lee resolved HDFS-11820.
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Resolution: Invalid
> Thread safety in logEdit?
> -
>
> Key:
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Kihwal Lee commented on HDFS-11820:
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Jira is for bug report. Please use relevant mailing list for
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Kihwal Lee commented on HDFS-11817:
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There are two possible immediate fixes that can be implemented.
-
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Kihwal Lee reassigned HDFS-11817:
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Assignee: Kihwal Lee
> A faulty node can cause a lease leak and NPE on accessing data
>
Kihwal Lee created HDFS-11817:
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Summary: A faulty node can cause a lease leak and NPE on accessing
data
Key: HDFS-11817
URL: https://issues.apache.org/jira/browse/HDFS-11817
Project: Hadoop HDFS
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Kihwal Lee updated HDFS-11755:
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Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 2.8.2
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Kihwal Lee commented on HDFS-11755:
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+1 looks good.
> Underconstruction blocks can be considered
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Kihwal Lee commented on HDFS-8789:
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What happens on NN restart (to be precise, during the replication
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Kihwal Lee updated HDFS-11765:
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Target Version/s: 2.8.1
> Fix:Performance regression due to incorrect use of DataChecksum
>
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Kihwal Lee commented on HDFS-8789:
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This can be fatal to namenode.
{code}
blocksWlocs =
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Kihwal Lee updated HDFS-11702:
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Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 2.8.2
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Kihwal Lee commented on HDFS-11742:
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bq. I probably still not.
I invite everyone to run Balancer
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Kihwal Lee edited comment on HDFS-11742 at 5/5/17 11:24 PM:
bq. Do you think
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Kihwal Lee updated HDFS-11742:
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Summary: Improve balancer usability after HDFS-8818 (was: Improve balancer
usability after HDFS-8188)
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Kihwal Lee commented on HDFS-11742:
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bq. Do you think that this is still a blocker of the release?
-
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Kihwal Lee commented on HDFS-8818:
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Posted a patch to HDFS-11742. Hopefully, this will prevent users from
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Kihwal Lee updated HDFS-11742:
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Attachment: HDFS-11742.v2.trunk.patch
> Improve balancer usability after HDFS-8188
>
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Kihwal Lee commented on HDFS-11742:
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Setting HDFS-11377 as a dependency. In most cases, the proposed
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Kihwal Lee commented on HDFS-11742:
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Instead of reverting, I am making a simple change to make it more
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Kihwal Lee updated HDFS-11742:
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Description:
We ran 2.8 balancer with HDFS-8818 on a 280-node and a 2,400-node cluster. In
both cases,
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Kihwal Lee updated HDFS-11742:
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Target Version/s: 2.7.4, 2.8.1 (was: 2.8.1)
> Improve balancer usability after HDFS-8188
>
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Kihwal Lee updated HDFS-11742:
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Summary: Improve balancer usability after HDFS-8188 (was: Revert the core
changes from HDFS-8818)
>
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Kihwal Lee commented on HDFS-8818:
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I will post a patch for improvement tomorrow. I am letting it run
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Kihwal Lee commented on HDFS-8818:
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bq. Do you have HDFS-8824 in your runs? I suspect the first run has
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Kihwal Lee commented on HDFS-8818:
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I set the dfs.datanode.balance.max.concurrent.moves to 15, which is
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Kihwal Lee edited comment on HDFS-8818 at 5/3/17 7:17 PM:
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I set
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Kihwal Lee commented on HDFS-8818:
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We see this problem in EVERY single cluster we tried this on.
The
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Kihwal Lee updated HDFS-8818:
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Attachment: bal1.png
bal2.png
> Allow Balancer to run faster
>
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Kihwal Lee edited comment on HDFS-11742 at 5/2/17 11:26 PM:
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Kihwal Lee commented on HDFS-11742:
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Kihwal Lee updated HDFS-11742:
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Attachment: balancer2.8.png
> Revert the core changes from HDFS-8818
>
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Kihwal Lee updated HDFS-11742:
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Description:
This is to revert the core changes made by HDFS-8818. The reason is explained
in the jira
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Kihwal Lee updated HDFS-11742:
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Assignee: Kihwal Lee
Status: Patch Available (was: Open)
> Revert the core changes from
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Kihwal Lee updated HDFS-11742:
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Attachment: HDFS-11742.trunk.patch
HDFS-11742.branch-2.patch
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Kihwal Lee updated HDFS-8818:
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Attachment: (was: bal_revert.branch-2.patch)
> Allow Balancer to run faster
>
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Kihwal Lee updated HDFS-8818:
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Attachment: (was: bal_revert.trunk.patch)
> Allow Balancer to run faster
>
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Kihwal Lee updated HDFS-8818:
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Attachment: (was: bal_revert.branch-2.8.patch)
> Allow Balancer to run faster
>
Kihwal Lee created HDFS-11742:
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Summary: Revert the core changes from HDFS-8818
Key: HDFS-11742
URL: https://issues.apache.org/jira/browse/HDFS-11742
Project: Hadoop HDFS
Issue Type: Bug
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Kihwal Lee updated HDFS-8818:
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Attachment: bal_revert.trunk.patch
bal_revert.branch-2.patch
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Kihwal Lee commented on HDFS-8818:
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I will open a new one and post the patch there.
> Allow Balancer to
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Kihwal Lee reopened HDFS-8818:
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Reopening for revert. git won't revert it cleanly since there have been other
changes since the commit. I
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Kihwal Lee reassigned HDFS-8818:
Assignee: Kihwal Lee (was: Tsz Wo Nicholas Sze)
> Allow Balancer to run faster
>
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Kihwal Lee commented on HDFS-8818:
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Thanks for the update, [~jojochuang]. That fixes the hang, but the
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Kihwal Lee commented on HDFS-8818:
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-1. Proposing revert of this untested change.
We've run it on a small
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Kihwal Lee updated HDFS-11714:
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Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 2.8.1
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Kihwal Lee edited comment on HDFS-11714 at 5/1/17 10:24 PM:
the branch-2 patch
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Kihwal Lee commented on HDFS-11714:
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the branch-2 patch is identical except for the variables in the
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Kihwal Lee commented on HDFS-11714:
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You beat me. Thanks.
> Newly added NN storage directory won't get
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Kihwal Lee commented on HDFS-11714:
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TestPipelinesFailover, TestBalancer are passing. The rest is
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Kihwal Lee commented on HDFS-7541:
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Just found out I somehow clicked the evil "Assign to me" link 6 days
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Kihwal Lee reassigned HDFS-7541:
Assignee: Ming Ma (was: Kihwal Lee)
> Upgrade Domains in HDFS
> ---
>
>
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Kihwal Lee commented on HDFS-11714:
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Filed HDFS-11729.
> Newly added NN storage directory won't get
Kihwal Lee created HDFS-11729:
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Summary: Improve NNStorageRetentionManager failure handling.
Key: HDFS-11729
URL: https://issues.apache.org/jira/browse/HDFS-11729
Project: Hadoop HDFS
Issue
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Kihwal Lee updated HDFS-11714:
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Attachment: HDFS-11714.v3.trunk.patch
HDFS-11714.v3.branch-2.patch
Attaching new
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Kihwal Lee commented on HDFS-11714:
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I will file a jira for the retention manager improvement.
> Newly
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Kihwal Lee updated HDFS-11609:
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Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 2.8.1
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Kihwal Lee commented on HDFS-11714:
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bq. What if a VERSION file already exists in the directory for some
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Kihwal Lee commented on HDFS-11609:
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Only updated the comment in the new patch. Test failures are not
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Kihwal Lee commented on HDFS-11714:
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These are passing.
{noformat}
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Kihwal Lee updated HDFS-11714:
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Attachment: HDFS-11714.v2.trunk.patch
HDFS-11714.v2.branch-2.patch
Attaching updated
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Kihwal Lee updated HDFS-11714:
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Target Version/s: 2.7.4, 2.8.1 (was: 2.8.1)
> Newly added NN storage directory won't get initialized
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Kihwal Lee updated HDFS-11609:
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Attachment: HDFS-11609_v3.trunk.patch
HDFS-11609_v3.branch-2.patch
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Kihwal Lee reassigned HDFS-11714:
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Assignee: Kihwal Lee
> Newly added NN storage directory won't get initialized and cause space
>
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Kihwal Lee commented on HDFS-11396:
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It could be due to interactions with other tests in
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Kihwal Lee commented on HDFS-11714:
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None of the findbugs warning was introduced by the patch.
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Kihwal Lee updated HDFS-11714:
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Status: Patch Available (was: Open)
> Newly added NN storage directory won't get initialized and cause
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Kihwal Lee updated HDFS-11714:
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Attachment: HDFS-11714.trunk.patch
The version file can be created in an empty storage diectory in
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Kihwal Lee commented on HDFS-11714:
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The original design pre-HA was to just create directory structure
Kihwal Lee created HDFS-11714:
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Summary: Newly added NN storage directory won't get initialized
and cause space exhaustion
Key: HDFS-11714
URL: https://issues.apache.org/jira/browse/HDFS-11714
Project:
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Kihwal Lee commented on HDFS-11709:
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+1 lgtm
> StandbyCheckpointer should handle an non-existing
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Kihwal Lee commented on HDFS-5042:
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We've seen that too. Unless there is other bug in Hadoop, I think
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Kihwal Lee commented on HDFS-10495:
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I've analyzed this and discussed potential solutions in HDFS-11609.
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Kihwal Lee commented on HDFS-5042:
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bq. Can we recover this kind of block from namenode after getting
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Kihwal Lee reassigned HDFS-7541:
Assignee: Kihwal Lee (was: Ming Ma)
> Upgrade Domains in HDFS
> ---
>
>
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Kihwal Lee commented on HDFS-7541:
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[~mingma] Since you guys have been using it in production for a while,
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Kihwal Lee commented on HDFS-11691:
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bq. this way datanode link field on UI will also display
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Kihwal Lee reassigned HDFS-11691:
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Assignee: Kihwal Lee
> Add a proper scheme to the datanode links in NN web UI
>
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Kihwal Lee updated HDFS-11691:
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Status: Patch Available (was: Open)
> Add a proper scheme to the datanode links in NN web UI
>
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Kihwal Lee updated HDFS-11691:
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Attachment: HDFS-11691.patch
> Add a proper scheme to the datanode links in NN web UI
>
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Kihwal Lee updated HDFS-11691:
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Description:
On the datanodes page of the namenode web UI, the datanode links may not be
correct if
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Kihwal Lee updated HDFS-11691:
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Description:
On the datanodes page of the namenode web UI, the datanode links may not be
correct if
Kihwal Lee created HDFS-11691:
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Summary: Add a proper scheme to the datanode links in NN web UI
Key: HDFS-11691
URL: https://issues.apache.org/jira/browse/HDFS-11691
Project: Hadoop HDFS
Issue
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https://issues.apache.org/jira/browse/HDFS-9922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15978923#comment-15978923
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Kihwal Lee edited comment on HDFS-9922 at 4/21/17 3:58 PM:
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Don't we need this in
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Kihwal Lee commented on HDFS-9922:
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Don't we need this in 2.8?
> Upgrade Domain placement policy status
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https://issues.apache.org/jira/browse/HDFS-11609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15977517#comment-15977517
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Kihwal Lee commented on HDFS-11609:
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[~jojochuang], would you look at the updated patch?
> Some blocks
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https://issues.apache.org/jira/browse/HDFS-11661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15974623#comment-15974623
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Kihwal Lee commented on HDFS-11661:
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[~xiaochen], [~jingzhao], any thoughts? We've internally reverted
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Kihwal Lee commented on HDFS-11609:
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Unit test failures are not related to the patch. I ran all of them
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Kihwal Lee updated HDFS-11609:
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Attachment: HDFS-11609_v2.trunk.patch
HDFS-11609_v2.branch-2.patch
Attaching the
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Kihwal Lee commented on HDFS-11609:
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Agree it is a blocker. I will update the patch today.
> Some
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https://issues.apache.org/jira/browse/HDFS-11648?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kihwal Lee updated HDFS-11648:
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Resolution: Fixed
Hadoop Flags: Reviewed
Fix Version/s: 2.8.1
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Kihwal Lee commented on HDFS-11648:
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+1 simple, yet effective.
> Lazy construct the IIP pathname
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https://issues.apache.org/jira/browse/HDFS-11626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15960871#comment-15960871
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Kihwal Lee commented on HDFS-11626:
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bq. oiv_legacy only works for fsimage at or before Hadoop 2.4.
We
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Kihwal Lee updated HDFS-11609:
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Attachment: HDFS-11609.branch-2.patch
Attaching branch-2 version of the patch, as the trunk version was
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