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Todd Lipcon commented on HDFS-1846:
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Good point - the bug in the previous code was that w
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Colin Patrick McCabe commented on HDFS-1846:
Let me clear up one misconception
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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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Hudson commented on HDFS-1846:
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Integrated in Hadoop-Hdfs-trunk #650 (See
[https://builds.apa
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Hudson commented on HDFS-1846:
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Integrated in Hadoop-Hdfs-trunk-Commit #612 (See
[https://bui
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Todd Lipcon commented on HDFS-1846:
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Just ran a sanity check where I disabled preallocati
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dhruba borthakur commented on HDFS-1846:
+1
> Don't fill preallocated portion of e
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Todd Lipcon commented on HDFS-1846:
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I ran tests on a non-SSD as well, and also added cod
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Hadoop QA commented on HDFS-1846:
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-1 overall. Here are the results of testing the latest
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Hadoop QA commented on HDFS-1846:
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-1 overall. Here are the results of testing the latest
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Hadoop QA commented on HDFS-1846:
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-1 overall. Here are the results of testing the latest
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Hadoop QA commented on HDFS-1846:
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-1 overall. Here are the results of testing the latest
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Aaron T. Myers commented on HDFS-1846:
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@Eli - the first test was indeed done on an SS
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Eli Collins commented on HDFS-1846:
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@atm - are these results from a system using an ssd?
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Nathan Roberts commented on HDFS-1846:
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If this change improves performance, then by a
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Brock Noland commented on HDFS-1846:
This is a major improvement to the existing preall
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Aaron T. Myers commented on HDFS-1846:
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Also, it occurs to me that the largest edit lo
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Aaron T. Myers commented on HDFS-1846:
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Hey guys, I've done some performance analysis,
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Nathan Roberts commented on HDFS-1846:
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I agree with Todd. We need to verify the laten
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Todd Lipcon commented on HDFS-1846:
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Only thing I'm a little nervous about with this fix
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Todd Lipcon commented on HDFS-1846:
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bq. open a separate JIRA to implement this using nat
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Aaron T. Myers commented on HDFS-1846:
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bq. That will be great, but I suspect that the
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dhruba borthakur commented on HDFS-1846:
> Is your point that we should figure out
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dhruba borthakur commented on HDFS-1846:
The idea of preallocation is to somehow ma
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