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Hadoop QA commented on HADOOP-8361: ----------------------------------- -1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12526436/HADOOP-8361.006.patch against trunk revision . +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 1 new or modified test files. +1 javac. The applied patch does not increase the total number of javac compiler warnings. +1 javadoc. The javadoc tool did not generate any warning messages. +1 eclipse:eclipse. The patch built with eclipse:eclipse. +1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9) warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. -1 core tests. The patch failed these unit tests in hadoop-common-project/hadoop-common: org.apache.hadoop.fs.viewfs.TestViewFsTrash +1 contrib tests. The patch passed contrib unit tests. Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/980//testReport/ Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/980//console This message is automatically generated. > avoid out-of-memory problems when deserializing strings > ------------------------------------------------------- > > Key: HADOOP-8361 > URL: https://issues.apache.org/jira/browse/HADOOP-8361 > Project: Hadoop Common > Issue Type: Bug > Reporter: Colin Patrick McCabe > Assignee: Colin Patrick McCabe > Priority: Minor > Attachments: HADOOP-8361.001.patch, HADOOP-8361.002.patch, > HADOOP-8361.003.patch, HADOOP-8361.004.patch, HADOOP-8361.005.patch, > HADOOP-8361.006.patch, HADOOP-8361.007.patch > > > In HDFS, we want to be able to read the edit log without crashing on an OOM > condition. Unfortunately, we currently cannot do this, because there are no > limits on the length of certain data types we pull from the edit log. We > often read strings without setting any upper limit on the length we're > prepared to accept. > It's not that we don't have limits on strings-- for example, HDFS limits the > maximum path length to 8000 UCS-2 characters. Linux limits the maximum user > name length to either 64 or 128 bytes, depending on what version you are > running. It's just that we're not exposing these limits to the > deserialization functions that need to be aware of them. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira