[jira] [Commented] (HADOOP-10843) Unsafe.getLong is not supported correcly on Power PC, thus causing FastByteComparison's UnsafeComparer not working properly
[ https://issues.apache.org/jira/browse/HADOOP-10843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14065227#comment-14065227 ] Colin Patrick McCabe commented on HADOOP-10843: --- What do you mean by not supported correctly? Are you talking about alignment restrictions (i.e. address must be a multiple of 8). Or something else? If it is something else, I would expect there to be a Sun/Oracle problem report open for this? Unsafe.getLong is not supported correcly on Power PC, thus causing FastByteComparison's UnsafeComparer not working properly --- Key: HADOOP-10843 URL: https://issues.apache.org/jira/browse/HADOOP-10843 Project: Hadoop Common Issue Type: Bug Components: io Affects Versions: 2.2.0, 2.3.0, 2.4.0, 2.4.1 Reporter: Jinghui Wang Assignee: Jinghui Wang Attachments: HADOOP-10843.patch Unsafe.getLong is not supported correcly on Power PC. FastByteComparison's UnsafeComparer relies on unsafe method Unsafe.getLong, which is not correctly supported for Power PC. -- This message was sent by Atlassian JIRA (v6.2#6252)
[jira] [Commented] (HADOOP-10843) Unsafe.getLong is not supported correcly on Power PC, thus causing FastByteComparison's UnsafeComparer not working properly
[ https://issues.apache.org/jira/browse/HADOOP-10843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14062862#comment-14062862 ] Jinghui Wang commented on HADOOP-10843: --- Attached patch checks if it's running on PPC then use the lexicographical comparer. Unsafe.getLong is not supported correcly on Power PC, thus causing FastByteComparison's UnsafeComparer not working properly --- Key: HADOOP-10843 URL: https://issues.apache.org/jira/browse/HADOOP-10843 Project: Hadoop Common Issue Type: Bug Components: io Affects Versions: 2.2.0, 2.3.0, 2.4.0, 2.4.1 Reporter: Jinghui Wang Attachments: HADOOP-10843.patch Unsafe.getLong is not supported correcly on Power PC. FastByteComparison's UnsafeComparer relies on unsafe method Unsafe.getLong, which is not correctly supported for Power PC. -- This message was sent by Atlassian JIRA (v6.2#6252)
