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Hadoop QA commented on HADOOP-16836: ------------------------------------ | (/) *{color:green}+1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 34s{color} | {color:blue} Docker mode activated. {color} | || || || || {color:brown} Prechecks {color} || | {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s{color} | {color:green} The patch does not contain any @author tags. {color} | | {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m 0s{color} | {color:green} The patch appears to include 1 new or modified test files. {color} | || || || || {color:brown} trunk Compile Tests {color} || | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 22m 27s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 18m 4s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 42s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 12s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 14m 49s{color} | {color:green} branch has no errors when building and testing our client artifacts. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 46s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 16s{color} | {color:green} trunk passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 48s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 15m 21s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 15m 21s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 43s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 20s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s{color} | {color:green} The patch has no whitespace issues. {color} | | {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 13m 11s{color} | {color:green} patch has no errors when building and testing our client artifacts. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m 47s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m 18s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:green}+1{color} | {color:green} unit {color} | {color:green} 9m 13s{color} | {color:green} hadoop-common in the patch passed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 40s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black}105m 7s{color} | {color:black} {color} | \\ \\ || Subsystem || Report/Notes || | Docker | Client=19.03.5 Server=19.03.5 Image:yetus/hadoop:c44943d1fc3 | | JIRA Issue | HADOOP-16836 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12992438/HADOOP-16836-000.patch | | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle | | uname | Linux 321410062d1f 4.15.0-74-generic #84-Ubuntu SMP Thu Dec 19 08:06:28 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /testptch/patchprocess/precommit/personality/provided.sh | | git revision | trunk / 1e3a0b0 | | maven | version: Apache Maven 3.3.9 | | Default Java | 1.8.0_242 | | findbugs | v3.1.0-RC1 | | Test Results | https://builds.apache.org/job/PreCommit-HADOOP-Build/16748/testReport/ | | Max. process+thread count | 1376 (vs. ulimit of 5500) | | modules | C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common | | Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/16748/console | | Powered by | Apache Yetus 0.8.0 http://yetus.apache.org | This message was automatically generated. > Bug in widely-used helper function caused valid configuration value to fail > on multiple tests, causing build failure > -------------------------------------------------------------------------------------------------------------------- > > Key: HADOOP-16836 > URL: https://issues.apache.org/jira/browse/HADOOP-16836 > Project: Hadoop Common > Issue Type: Bug > Components: common > Affects Versions: 3.2.1 > Reporter: Ctest > Priority: Blocker > Labels: configuration, easyfix, patch, test > Attachments: HADOOP-16836-000.patch, HADOOP-16836-000.patch > > > Test helper function > `org.apache.hadoop.io.file.tfile.TestTFileByteArrays#readRecords(org.apache.hadoop.fs.FileSystem, > org.apache.hadoop.fs.Path, int, org.apache.hadoop.conf.Configuration)` > (abbreviate as `readRecords()` below) are called in 4 actively-used tests > below: > > {code:java} > org.apache.hadoop.io.file.tfile.TestTFileStreams#testOneEntryMixedLengths1 > org.apache.hadoop.io.file.tfile.TestTFileStreams#testOneEntryUnknownLength > org.apache.hadoop.io.file.tfile.TestTFileLzoCodecsStreams#testOneEntryMixedLengths1 > org.apache.hadoop.io.file.tfile.TestTFileLzoCodecsStreams#testOneEntryUnknownLength{code} > > These tests first call > `org.apache.hadoop.io.file.tfile.TestTFileStreams#writeRecords(int count, > boolean knownKeyLength, boolean knownValueLength, boolean close)` to write > `key-value` pair records in a `TFile` object, then call the helper function > `readRecords()` to assert the `key` part and the `value` part of `key-value` > pair records stored matched with what they wrote perviously. The `value` > parts of `key-value` pairs from these tests are hardcode strings with a > length of 6. > Assertions in `readRecords()` are directly related to the value of the > configuration parameter `tfile.io.chunk.size`. The formal definition of > `tfile.io.chunk.size` is "Value chunk size in bytes. Default to 1MB. Values > of the length less than the chunk size is guaranteed to have known value > length in read time (See also > TFile.Reader.Scanner.Entry.isValueLengthKnown())". > When `tfile.io.chunk.size` is configured to a value less than the length of > the `value` part of the `key-value` pairs from these 4 tests, these tests > will fail, even though the configured value for `tfile.io.chunk.size` is > correct in semantic. > > *Consequence* > At least 4 actively-used tests failed on correctly configured parameters. > Tests used `readRecords()` could fail if the length of the hardcoded `value` > part they tested is larger than the configured value of > `tfile.io.chunk.size`. This caused build failure of Hadoop-Common if these > tests are not skipped. > > *Root Cause* > `readRecords()` used > `org.apache.hadoop.io.file.tfile.TFile.Reader.Scanner.Entry#getValueLength()` > (abbreviate as `getValueLength()` below) to get the full length of the > `value` part in the `key-value` pair. But `getValueLength()` can only get the > full length of the `value` part when the full length is less than > `tfile.io.chunk.size`, otherwise, `getValueLength()` throws an exception, > causing `readRecords()` to fail, and thus resulting in failures in the > aforementioned 4 tests. This is because `getValueLength()` do not know the > full length of the `value` part when `value` part's size is larger than > `tfile.io.chunk.size`. > > *Fixes* > `readRecords()` should instead call > `org.apache.hadoop.io.file.tfile.TFile.Reader.Scanner.Entry#getValue(byte[])` > (abbreviate as `getValue()` below), which returns the correct full length of > the `value` part despite whether the `value` length is larger than > `tfile.io.chunk.size`. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org