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ASF GitHub Bot logged work on HADOOP-17125: ------------------------------------------- Author: ASF GitHub Bot Created on: 29/Sep/20 21:44 Start Date: 29/Sep/20 21:44 Worklog Time Spent: 10m Work Description: viirya commented on a change in pull request #2297: URL: https://github.com/apache/hadoop/pull/2297#discussion_r497078103 ########## File path: hadoop-common-project/hadoop-common/src/main/native/native.vcxproj ########## @@ -68,30 +68,13 @@ <IntDir>..\..\..\target\native\$(Configuration)\</IntDir> <TargetName>hadoop</TargetName> </PropertyGroup> - <PropertyGroup> - <SnappyLib Condition="Exists('$(CustomSnappyPrefix)\snappy.dll')">$(CustomSnappyPrefix)</SnappyLib> - <SnappyLib Condition="Exists('$(CustomSnappyPrefix)\lib\snappy.dll') And '$(SnappyLib)' == ''">$(CustomSnappyPrefix)\lib</SnappyLib> - <SnappyLib Condition="Exists('$(CustomSnappyPrefix)\bin\snappy.dll') And '$(SnappyLib)' == ''">$(CustomSnappyPrefix)\bin</SnappyLib> - <SnappyLib Condition="Exists('$(CustomSnappyLib)') And '$(SnappyLib)' == ''">$(CustomSnappyLib)</SnappyLib> - <SnappyInclude Condition="Exists('$(CustomSnappyPrefix)\snappy.h')">$(CustomSnappyPrefix)</SnappyInclude> - <SnappyInclude Condition="Exists('$(CustomSnappyPrefix)\include\snappy.h') And '$(SnappyInclude)' == ''">$(CustomSnappyPrefix)\include</SnappyInclude> - <SnappyInclude Condition="Exists('$(CustomSnappyInclude)') And '$(SnappyInclude)' == ''">$(CustomSnappyInclude)</SnappyInclude> - <SnappyEnabled Condition="'$(SnappyLib)' != '' And '$(SnappyInclude)' != ''">true</SnappyEnabled> - <IncludePath Condition="'$(SnappyEnabled)' == 'true'">$(SnappyInclude);$(IncludePath)</IncludePath> - <IncludePath Condition="Exists('$(ZLIB_HOME)')">$(ZLIB_HOME);$(IncludePath)</IncludePath> Review comment: Oh, yeah, will add it back. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 492689) Time Spent: 21.5h (was: 21h 20m) > Using snappy-java in SnappyCodec > -------------------------------- > > Key: HADOOP-17125 > URL: https://issues.apache.org/jira/browse/HADOOP-17125 > Project: Hadoop Common > Issue Type: New Feature > Components: common > Affects Versions: 3.3.0 > Reporter: DB Tsai > Priority: Major > Labels: pull-request-available > Time Spent: 21.5h > Remaining Estimate: 0h > > In Hadoop, we use native libs for snappy codec which has several > disadvantages: > * It requires native *libhadoop* and *libsnappy* to be installed in system > *LD_LIBRARY_PATH*, and they have to be installed separately on each node of > the clusters, container images, or local test environments which adds huge > complexities from deployment point of view. In some environments, it requires > compiling the natives from sources which is non-trivial. Also, this approach > is platform dependent; the binary may not work in different platform, so it > requires recompilation. > * It requires extra configuration of *java.library.path* to load the > natives, and it results higher application deployment and maintenance cost > for users. > Projects such as *Spark* and *Parquet* use > [snappy-java|[https://github.com/xerial/snappy-java]] which is JNI-based > implementation. It contains native binaries for Linux, Mac, and IBM in jar > file, and it can automatically load the native binaries into JVM from jar > without any setup. If a native implementation can not be found for a > platform, it can fallback to pure-java implementation of snappy based on > [aircompressor|[https://github.com/airlift/aircompressor/tree/master/src/main/java/io/airlift/compress/snappy]]. -- 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