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Nathan Roberts commented on HDFS-6658:
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Thanks Amir. Very attractive memory savings.
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Nathan Roberts commented on HDFS-6658:
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Maybe have a simple fragmentation metric and
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Nathan Roberts commented on HDFS-6584:
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As part of this work, would it make sense to
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Nathan Roberts commented on HDFS-6658:
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{quote}
I guess my argument is that (in the
Nathan Roberts created HDFS-6166:
Summary: revisit balancer so_timeout
Key: HDFS-6166
URL: https://issues.apache.org/jira/browse/HDFS-6166
Project: Hadoop HDFS
Issue Type: Bug
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Nathan Roberts updated HDFS-6166:
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Attachment: HDFS-6166.patch
proposed patch.
revisit balancer so_timeout
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Nathan Roberts updated HDFS-6166:
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Target Version/s: 3.0.0, 2.4.0 (was: 2.4.0)
Status: Patch Available (was: Open)
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Nathan Roberts commented on HDFS-6166:
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Tested on a 400 node cluster with a bandwidth
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Nathan Roberts commented on HDFS-6166:
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Maybe our two comments passed in the mail. Yes
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Nathan Roberts commented on HDFS-6166:
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The blocks don't have to be very large. There
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Nathan Roberts updated HDFS-6166:
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Attachment: HDFS-6166-branch23.patch
Patch for branch 23
revisit balancer so_timeout
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Nathan Roberts commented on HDFS-6247:
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+1 This will be better than the longish
Nathan Roberts created HDFS-6407:
Summary: new namenode UI, lost ability to sort columns in datanode
tab
Key: HDFS-6407
URL: https://issues.apache.org/jira/browse/HDFS-6407
Project: Hadoop HDFS
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https://issues.apache.org/jira/browse/HDFS-234?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13270874#comment-13270874
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Nathan Roberts commented on HDFS-234:
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I agree it would be good to have it in 2.0-alpha
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Nathan Roberts commented on HDFS-3092:
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Eli, thanks for the writeup.
One question on
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Nathan Roberts commented on HDFS-4489:
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Sorry this is a really late comment but I'd
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Nathan Roberts commented on HDFS-4489:
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bq. Suresh is willing to do the performance
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Nathan Roberts commented on HDFS-4489:
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Thanks for running some basic performance
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Nathan Roberts commented on HDFS-5241:
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+1 on the approach. The thread pulling from
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Nathan Roberts commented on HDFS-5223:
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Thanks Aaron and Todd for bringing this up.
I
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Nathan Roberts commented on HDFS-5239:
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0.23 branch looks good to me. +1
Allow
Nathan Roberts created HDFS-5446:
Summary: Consider supporting a mechanism to allow datanodes to
drain outstanding work during rolling upgrade
Key: HDFS-5446
URL: https://issues.apache.org/jira/browse/HDFS-5446
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Nathan Roberts commented on HDFS-1846:
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I agree with Todd. We need to verify the
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Nathan Roberts commented on HDFS-1846:
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If this change improves performance, then by
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Nathan Roberts commented on HDFS-1846:
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Thanks for the patch! I learned some things on
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Nathan Roberts commented on HDFS-2080:
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very nice. And I'll bet cpu usage
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Nathan Roberts commented on HDFS-347:
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With the work on hdfs-2080, I'd be really curious
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Nathan Roberts commented on HDFS-347:
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Do you run with HDFS-941? How many random reads
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Nathan Roberts commented on HDFS-1836:
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@Matt, I think this should be marked as fixed
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Nathan Roberts updated HDFS-2202:
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Fix Version/s: (was: 0.20.205.0)
0.23.0
0.23: Changes to balancer
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Nathan Roberts updated HDFS-2094:
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Fix Version/s: 0.20.205.0
Add metrics for write pipeline failures
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Nathan Roberts updated HDFS-2094:
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Fix Version/s: (was: 0.20.205.0)
Add metrics for write pipeline failures
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Nathan Roberts commented on HDFS-2246:
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Two comments:
1) I really wish someone would
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Nathan Roberts commented on HDFS-1767:
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I feel like Dhruba's suggestion deserves a new
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Nathan Roberts commented on HDFS-1796:
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I'm certainly not an expert on these two locks
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Nathan Roberts commented on HDFS-347:
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We have been looking closely at the capability
Nathan Roberts created HDFS-5535:
Summary: Umbrella jira for improved HDFS rolling upgrades
Key: HDFS-5535
URL: https://issues.apache.org/jira/browse/HDFS-5535
Project: Hadoop HDFS
Issue
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https://issues.apache.org/jira/browse/HDFS-3225?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nathan Roberts updated HDFS-3225:
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Issue Type: Sub-task (was: New Feature)
Parent: HDFS-5535
Revist upgrade snapshots,
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Nathan Roberts updated HDFS-5496:
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Issue Type: Sub-task (was: Improvement)
Parent: HDFS-5535
Make replication queue
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Nathan Roberts updated HDFS-5498:
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Issue Type: Sub-task (was: Improvement)
Parent: HDFS-5535
Improve datanode startup time
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Nathan Roberts updated HDFS-5446:
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Issue Type: Sub-task (was: Improvement)
Parent: HDFS-5535
Consider supporting a
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Nathan Roberts commented on HDFS-5535:
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Hi. Initial draft is still a little rough.
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Nathan Roberts updated HDFS-5477:
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Attachment: Proposal.pdf
Fix formatting problems in PDF.
Block manager as a service
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Nathan Roberts updated HDFS-5477:
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Attachment: Standalone BM.pdf
Re-attach standalone pdf to fix graphics.
Block manager as a
Nathan Roberts created HDFS-5788:
Summary: listLocatedStatus response can be very large
Key: HDFS-5788
URL: https://issues.apache.org/jira/browse/HDFS-5788
Project: Hadoop HDFS
Issue Type:
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Nathan Roberts commented on HDFS-5788:
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A simple solution is:
Restrict the size to
Nathan Roberts created HDFS-5806:
Summary: balancer should set SoTimeout to avoid indefinite hangs
Key: HDFS-5806
URL: https://issues.apache.org/jira/browse/HDFS-5806
Project: Hadoop HDFS
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Nathan Roberts updated HDFS-5806:
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Attachment: HDFS-5806.patch
use setSoTimeout() to avoid read hangs.
balancer should set
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Nathan Roberts updated HDFS-5806:
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Status: Patch Available (was: Open)
balancer should set SoTimeout to avoid indefinite hangs
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Nathan Roberts updated HDFS-5788:
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Attachment: HDFS-5788.patch
patch for trunk.
listLocatedStatus response can be very large
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Nathan Roberts updated HDFS-5788:
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Status: Patch Available (was: Open)
listLocatedStatus response can be very large
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Nathan Roberts commented on HDFS-5806:
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Andrew, thanks for taking a look. Sorry about
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Nathan Roberts updated HDFS-5806:
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Attachment: HDFS-5806-0.23.patch
0.23 version of patch
balancer should set SoTimeout to avoid
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Nathan Roberts commented on HDFS-2825:
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Any chance folks have altered their view on
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Nathan Roberts commented on HDFS-2825:
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[~tlipcon] - It might help. I'm a little
Nathan Roberts created HDFS-7742:
Summary: favoring decommissioning node for replication can cause a
block to stay underreplicated for long periods
Key: HDFS-7742
URL:
Nathan Roberts created HDFS-7645:
Summary: Rolling upgrade is restoring blocks from trash multiple
times
Key: HDFS-7645
URL: https://issues.apache.org/jira/browse/HDFS-7645
Project: Hadoop HDFS
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https://issues.apache.org/jira/browse/HDFS-7548?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14273764#comment-14273764
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Nathan Roberts commented on HDFS-7548:
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- I think we need to prioritize a scan for
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Nathan Roberts commented on HDFS-7548:
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I think we need to handle the
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Nathan Roberts commented on HDFS-7742:
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Thanks for the review nicholas!
There is a
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Nathan Roberts updated HDFS-7742:
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Target Version/s: 3.0.0 (was: 3.0.0, 2.7.0)
favoring decommissioning node for replication can
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Nathan Roberts updated HDFS-7742:
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Attachment: HDFS-7742-v0.patch
Attached patch. Favors decommissioning nodes a bit by allowing them
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Nathan Roberts updated HDFS-7742:
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Target Version/s: 3.0.0, 2.7.0 (was: 3.0.0)
Status: Patch Available (was: Open)
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Nathan Roberts commented on HDFS-8041:
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Hi [~kihwal]. Some minor comments on the patch
Nathan Roberts created HDFS-8404:
Summary: pending block replication can get stuck using older
genstamp
Key: HDFS-8404
URL: https://issues.apache.org/jira/browse/HDFS-8404
Project: Hadoop HDFS
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Nathan Roberts updated HDFS-8404:
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Attachment: HDFS-8404-v0.patch
pending block replication can get stuck using older genstamp
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Nathan Roberts updated HDFS-8404:
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Status: Patch Available (was: Open)
pending block replication can get stuck using older genstamp
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Nathan Roberts updated HDFS-8404:
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Attachment: HDFS-8404-v1.patch
Thanks [~kihwal]. Updated based on latest trunk.
pending block
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Nathan Roberts updated HDFS-8404:
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Status: Open (was: Patch Available)
pending block replication can get stuck using older genstamp
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Nathan Roberts updated HDFS-8404:
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Status: Patch Available (was: Open)
pending block replication can get stuck using older genstamp
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https://issues.apache.org/jira/browse/HDFS-4660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14588695#comment-14588695
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Nathan Roberts commented on HDFS-4660:
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+1 on the patch. I have reviewed the patch
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Nathan Roberts commented on HDFS-8791:
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My preference would be to take a smaller
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Nathan Roberts commented on HDFS-8791:
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Curious what folks would think about going
Nathan Roberts created HDFS-8873:
Summary: throttle directoryScanner
Key: HDFS-8873
URL: https://issues.apache.org/jira/browse/HDFS-8873
Project: Hadoop HDFS
Issue Type: Bug
Nathan Roberts created HDFS-8894:
Summary: Set SO_KEEPALIVE on DN server sockets
Key: HDFS-8894
URL: https://issues.apache.org/jira/browse/HDFS-8894
Project: Hadoop HDFS
Issue Type: Bug
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Nathan Roberts commented on HDFS-6407:
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My understanding is that the Legacy UI was
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Nathan Roberts commented on HDFS-8791:
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bq. I'm having trouble understanding these
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Nathan Roberts commented on HDFS-8791:
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Sure. Randomly sampled node had 4 4TB drives,
Nathan Roberts created HDFS-8791:
Summary: block ID-based DN storage layout can be very slow for
datanode on ext4
Key: HDFS-8791
URL: https://issues.apache.org/jira/browse/HDFS-8791
Project: Hadoop
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Nathan Roberts commented on HDFS-8791:
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For reference, the stack trace when du is
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Nathan Roberts commented on HDFS-8791:
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Hi [~cmccabe]. Thanks for the idea. Yes, I had
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Nathan Roberts commented on HDFS-8791:
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I agree we should optimize all the potential
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Nathan Roberts commented on HDFS-8791:
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I forgot to mention that I'm pretty confident
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Nathan Roberts commented on HDFS-8873:
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bq. Sure. It won't matter since stop() is only called by
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Nathan Roberts commented on HDFS-8873:
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Thanks [~templedf] for the update. I am sorry I haven't had a
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Nathan Roberts commented on HDFS-8873:
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Thanks [~templedf]. I like that the stopwatch class makes this
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Nathan Roberts commented on HDFS-8873:
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Thanks [~templedf] for the update! I'm +1 (non-binding) for v9
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Nathan Roberts commented on HDFS-8873:
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Thanks [~templedf] for the patch. A few comments.
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https://issues.apache.org/jira/browse/HDFS-7060?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15018828#comment-15018828
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Nathan Roberts commented on HDFS-7060:
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Has anyone given any further thought on this patch? It seems
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https://issues.apache.org/jira/browse/HDFS-8791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15014463#comment-15014463
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Nathan Roberts commented on HDFS-8791:
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Thanks [~ctrezzo] for the patch! Nice writeup on the
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https://issues.apache.org/jira/browse/HDFS-4946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nathan Roberts updated HDFS-4946:
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Attachment: HDFS-4946-2.patch
Uploaded a new version of this patch for trunk. We have found this
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https://issues.apache.org/jira/browse/HDFS-4946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nathan Roberts reopened HDFS-4946:
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[~jrkinley], re-opening because this is a very useful patch. Let me know if you
disagree or would
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https://issues.apache.org/jira/browse/HDFS-4946?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nathan Roberts updated HDFS-4946:
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Affects Version/s: 3.0.0
2.7.2
Target Version/s: 3.0.0, 2.8.0
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https://issues.apache.org/jira/browse/HDFS-9239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15218302#comment-15218302
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Nathan Roberts commented on HDFS-9239:
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bq. However,making it lighter on the datanode side is a good
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https://issues.apache.org/jira/browse/HDFS-9239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15218470#comment-15218470
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Nathan Roberts commented on HDFS-9239:
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bq. Just to make sure I'm clear, are you talking about
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https://issues.apache.org/jira/browse/HDFS-4660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15437036#comment-15437036
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Nathan Roberts commented on HDFS-4660:
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Hi [~yzhangal]. Had to go back to an old git stash, but I'll
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https://issues.apache.org/jira/browse/HDFS-4660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nathan Roberts updated HDFS-4660:
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Attachment: periodic_hflush.patch
> Block corruption can happen during pipeline recovery
>
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https://issues.apache.org/jira/browse/HDFS-11661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15977163#comment-15977163
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Nathan Roberts commented on HDFS-11661:
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[~jojochuang], sure, occasional `du -s` of very large
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https://issues.apache.org/jira/browse/HDFS-11661?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15977163#comment-15977163
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Nathan Roberts edited comment on HDFS-11661 at 4/20/17 6:05 PM:
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https://issues.apache.org/jira/browse/HDFS-10797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15973105#comment-15973105
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Nathan Roberts commented on HDFS-10797:
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After deploying this to a cluster with a few hundred nodes,
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