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Re: VOTE: HDFS-347 merge - HDFS - [mail # dev]
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...+1 for the branch merge. I've reviewed all of the code in the branch, and we have people now running this code in production scenarios. It is as functional as the old version and way easier ...
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Author: Todd Lipcon,
2013-04-08, 20:19
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[HDFS-3918] EditLogTailer shouldn't log WARN when other node is in standby mode - HDFS - [issue]
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...If both nodes are in standby mode, each will be trying to roll the others' logs, which results in errors like:Unable to trigger a roll of the active NN org.apache.hadoop.ipc.StandbyException...
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http://issues.apache.org/jira/browse/HDFS-3918
Author: Todd Lipcon,
2013-04-06, 04:04
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Re: VOTE: HDFS-347 merge - HDFS - [mail # dev]
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...On Thu, Apr 4, 2013 at 9:11 PM, Tsz Wo Sze wrote: I can't tell if you're being serious about this... April fools was a few days ago. This is ridiculous - the previous vote...
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Author: Todd Lipcon,
2013-04-05, 04:21
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[HDFS-496] Use PureJavaCrc32 in HDFS - HDFS - [issue]
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...Common now has a pure java CRC32 implementation which is more efficient than java.util.zip.CRC32. This issue is to make use of it....
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http://issues.apache.org/jira/browse/HDFS-496
Author: Todd Lipcon,
2013-04-03, 00:59
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Re: Exception with QJM HDFS HA - HDFS - [mail # dev]
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...This looks like a bug with the new inode ID code in trunk, rather than a bug with QJM or HA. Suresh/Brandon, any thoughts? -Todd On Sun, Mar 31, 2013 at 6:43 PM, Azuryy Yu ...
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Author: Todd Lipcon,
2013-04-01, 05:10
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[HDFS-4618] default for checkpoint txn interval is too low - HDFS - [issue]
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...The default checkpoint interval is currently set to 40k transactions. That's way too low (I don't know what idiot set it to that.. oh wait, it was me...)The old default in 1.0 is 64MB. Assum...
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http://issues.apache.org/jira/browse/HDFS-4618
Author: Todd Lipcon,
2013-03-29, 14:05
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[HDFS-4621] additional logging to help diagnose slow QJM logSync - HDFS - [issue]
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...I've been working on diagnosing an issue with a cluster which is seeing slow logSync calls occasionally to QJM. Adding a few more pieces of logging would help this: in the warning messages o...
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http://issues.apache.org/jira/browse/HDFS-4621
Author: Todd Lipcon,
2013-03-29, 14:05
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[HDFS-4638] TransferFsImage should take Configuration as parameter - HDFS - [issue]
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...TransferFsImage currently creates a new HdfsConfiguration object, rather than taking one passed in. This means that using dfsadmin -fetchImage, you can't pass a different timeout on the comm...
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http://issues.apache.org/jira/browse/HDFS-4638
Author: Todd Lipcon,
2013-03-28, 23:51
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[HDFS-4617] warning while purging logs with QJM enabled - HDFS - [issue]
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...HDFS-2946 changed the way that edit log purging is calculated, such that it calls selectInputStreams() with an arbitrary transaction ID calculated relative to the current one. The JournalNod...
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http://issues.apache.org/jira/browse/HDFS-4617
Author: Todd Lipcon,
2013-03-28, 04:43
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[HDFS-2686] Remove DistributedUpgrade related code - HDFS - [issue]
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...A distributed upgrade framework was introduced long ago in HADOOP-1286 but was only used twice throughout history, and not since 0.17, where it was considered buggy (see HADOOP-3677). This i...
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http://issues.apache.org/jira/browse/HDFS-2686
Author: Todd Lipcon,
2013-03-20, 23:24
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