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[HDFS-4021] Misleading error message when resources are low on the NameNode - HDFS - [issue]
...When resources are low on the namenode, it enters SafeMode with a message like this:14:00:10,666  WARN NameNodeResourceChecker:89 - Space available onvolume '/dev/hda1' is 104357888, wh...
http://issues.apache.org/jira/browse/HDFS-4021    Author: Colin Patrick McCabe, 2012-10-11, 14:21
[HDFS-4007] Rehabilitate bit-rotted unit tests under hadoop-hdfs-project/hadoop-hdfs/src/test/unit/ - HDFS - [issue]
...There are a bunch of unit tests under hadoop-hdfs-project/hadoop-hdfs/src/test/unit/ that did not get Mavenized, and have bit-rotted over time.It looks like TestDataDirs and TestINodeFile sh...
http://issues.apache.org/jira/browse/HDFS-4007    Author: Colin Patrick McCabe, 2012-10-09, 15:00
[HDFS-3510] Improve FSEditLog pre-allocation - HDFS - [issue]
...It is good to avoid running out of space in the middle of writing a batch of edits, because when it happens, we often get partial edits at the end of the log.Edit log preallocation can solve...
http://issues.apache.org/jira/browse/HDFS-3510    Author: Colin Patrick McCabe, 2012-09-10, 21:25
[HDFS-3335] check for edit log corruption at the end of the log - HDFS - [issue]
...Even after encountering an OP_INVALID, we should check the end of the edit log to make sure that it contains no more edits.This will catch things like rare race conditions or log corruptions...
http://issues.apache.org/jira/browse/HDFS-3335    Author: Colin Patrick McCabe, 2012-09-07, 22:09
[HDFS-3889] distcp overwrites files even when there are missing checksums - HDFS - [issue]
...If distcp can't read the checksum files for the source and destination files-- for any reason-- it ignores the checksums and overwrites the destination file.  It does produce a log mess...
http://issues.apache.org/jira/browse/HDFS-3889    Author: Colin Patrick McCabe, 2012-09-06, 22:39
[HDFS-3865] TestDistCp is @ignored - HDFS - [issue]
...We should fix TestDistCp so that it actually runs, rather than being ignored.@ignorepublic class TestDistCp {  private static final Log LOG = LogFactory.getLog(TestDistCp.class);&n...
http://issues.apache.org/jira/browse/HDFS-3865    Author: Colin Patrick McCabe, 2012-08-29, 22:37
[HDFS-3004] Implement Recovery Mode - HDFS - [issue]
...When the NameNode metadata is corrupt for some reason, we want to be able to fix it.  Obviously, we would prefer never to get in this case.  In a perfect world, we never would. &nb...
http://issues.apache.org/jira/browse/HDFS-3004    Author: Colin Patrick McCabe, 2012-08-28, 18:55
[HDFS-3479] backport HDFS-3335 (check for edit log corruption at the end of the log) to branch-1 - HDFS - [issue]
...backport HDFS-3335 (check for edit log corruption at the end of the log) to branch-1...
http://issues.apache.org/jira/browse/HDFS-3479    Author: Colin Patrick McCabe, 2012-08-28, 05:26
[HDFS-3853] Port MiniDFSCluster enableManagedDfsDirsRedundancy option to branch-2 - HDFS - [issue]
...MiniDFSCluster's enabledManagedDfsDirsRedunancy flag should be ported to branch-2.  Certain tests rely on it to get full coverage-- for example,  TestNameNodeRecovery and TestFSEdi...
http://issues.apache.org/jira/browse/HDFS-3853    Author: Colin Patrick McCabe, 2012-08-27, 13:40
[HDFS-3304] fix fuse_dfs build - HDFS - [issue]
...The fuse_dfs build is broken in several ways.  If you run:mvn compile -DskipTests -Pnativemvn compile -DskipTests -PfuseYou get the following error message:[exec] /usr/lib64/gcc/x86_64-...
http://issues.apache.org/jira/browse/HDFS-3304    Author: Colin Patrick McCabe, 2012-08-26, 01:18
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