[ https://issues.apache.org/jira/browse/HBASE-17623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15884823#comment-15884823 ]
Hadoop QA commented on HBASE-17623: ----------------------------------- | (/) *{color:green}+1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 11s {color} | {color:blue} Docker mode activated. {color} | | {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green} 0m 0s {color} | {color:green} Patch does not have any anti-patterns. {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:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 9s {color} | {color:blue} Maven dependency ordering for branch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 2m 58s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 50s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 39s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 23s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 12s {color} | {color:green} master passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 41s {color} | {color:green} master passed {color} | | {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m 12s {color} | {color:blue} Maven dependency ordering for patch {color} | | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 56s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m 50s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m 50s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 39s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 23s {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} hadoopcheck {color} | {color:green} 26m 47s {color} | {color:green} Patch does not cause any errors with Hadoop 2.6.1 2.6.2 2.6.3 2.6.4 2.6.5 2.7.1 2.7.2 2.7.3 or 3.0.0-alpha2. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 28s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 41s {color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 1m 49s {color} | {color:green} hbase-common in the patch passed. {color} | | {color:green}+1{color} | {color:green} unit {color} | {color:green} 92m 38s {color} | {color:green} hbase-server in the patch passed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 27s {color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black} 136m 25s {color} | {color:black} {color} | \\ \\ || Subsystem || Report/Notes || | Docker | Client=1.12.3 Server=1.12.3 Image:yetus/hbase:8d52d23 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12854773/HBASE-17623.v2.patch | | JIRA Issue | HBASE-17623 | | Optional Tests | asflicense javac javadoc unit findbugs hadoopcheck hbaseanti checkstyle compile | | uname | Linux 8d85083da528 3.13.0-107-generic #154-Ubuntu SMP Tue Dec 20 09:57:27 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh | | git revision | master / ce64e7e | | Default Java | 1.8.0_121 | | findbugs | v3.0.0 | | Test Results | https://builds.apache.org/job/PreCommit-HBASE-Build/5844/testReport/ | | modules | C: hbase-common hbase-server U: . | | Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/5844/console | | Powered by | Apache Yetus 0.3.0 http://yetus.apache.org | This message was automatically generated. > Reuse the bytes array when building the hfile block > --------------------------------------------------- > > Key: HBASE-17623 > URL: https://issues.apache.org/jira/browse/HBASE-17623 > Project: HBase > Issue Type: Improvement > Reporter: CHIA-PING TSAI > Assignee: CHIA-PING TSAI > Priority: Minor > Fix For: 2.0.0, 1.4.0 > > Attachments: after(snappy_hfilesize=5.04GB).png, > after(snappy_hfilesize=755MB).png, before(snappy_hfilesize=5.04GB).png, > before(snappy_hfilesize=755MB).png, HBASE-17623.branch-1.v0.patch, > HBASE-17623.branch-1.v1.patch, HBASE-17623.v0.patch, HBASE-17623.v1.patch, > HBASE-17623.v1.patch, HBASE-17623.v2.patch, memory allocation measurement.xlsx > > > There are two improvements. > # The onDiskBlockBytesWithHeader should maintain a bytes array which can be > reused when building the hfile. > # The onDiskBlockBytesWithHeader is copied to an new bytes array only when we > need to cache the block. > # If no block need to be cached, the uncompressedBlockBytesWithHeader will > never be created. > {code:title=HFileBlock.java|borderStyle=solid} > private void finishBlock() throws IOException { > if (blockType == BlockType.DATA) { > this.dataBlockEncoder.endBlockEncoding(dataBlockEncodingCtx, > userDataStream, > baosInMemory.getBuffer(), blockType); > blockType = dataBlockEncodingCtx.getBlockType(); > } > userDataStream.flush(); > // This does an array copy, so it is safe to cache this byte array when > cache-on-write. > // Header is still the empty, 'dummy' header that is yet to be filled > out. > uncompressedBlockBytesWithHeader = baosInMemory.toByteArray(); > prevOffset = prevOffsetByType[blockType.getId()]; > // We need to set state before we can package the block up for > cache-on-write. In a way, the > // block is ready, but not yet encoded or compressed. > state = State.BLOCK_READY; > if (blockType == BlockType.DATA || blockType == BlockType.ENCODED_DATA) > { > onDiskBlockBytesWithHeader = dataBlockEncodingCtx. > compressAndEncrypt(uncompressedBlockBytesWithHeader); > } else { > onDiskBlockBytesWithHeader = defaultBlockEncodingCtx. > compressAndEncrypt(uncompressedBlockBytesWithHeader); > } > // Calculate how many bytes we need for checksum on the tail of the > block. > int numBytes = (int) ChecksumUtil.numBytes( > onDiskBlockBytesWithHeader.length, > fileContext.getBytesPerChecksum()); > // Put the header for the on disk bytes; header currently is > unfilled-out > putHeader(onDiskBlockBytesWithHeader, 0, > onDiskBlockBytesWithHeader.length + numBytes, > uncompressedBlockBytesWithHeader.length, > onDiskBlockBytesWithHeader.length); > // Set the header for the uncompressed bytes (for cache-on-write) -- > IFF different from > // onDiskBlockBytesWithHeader array. > if (onDiskBlockBytesWithHeader != uncompressedBlockBytesWithHeader) { > putHeader(uncompressedBlockBytesWithHeader, 0, > onDiskBlockBytesWithHeader.length + numBytes, > uncompressedBlockBytesWithHeader.length, > onDiskBlockBytesWithHeader.length); > } > if (onDiskChecksum.length != numBytes) { > onDiskChecksum = new byte[numBytes]; > } > ChecksumUtil.generateChecksums( > onDiskBlockBytesWithHeader, 0, onDiskBlockBytesWithHeader.length, > onDiskChecksum, 0, fileContext.getChecksumType(), > fileContext.getBytesPerChecksum()); > }{code} -- This message was sent by Atlassian JIRA (v6.3.15#6346)