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https://issues.apache.org/jira/browse/HBASE-15536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16279693#comment-16279693
]
stack commented on HBASE-15536:
-------------------------------
[~Apache9] Here is why I changed the release note to add this:
commit 95f8e93691ad79b77ae9a4a13208c0d7ca405c96
Author: Haohui Mai <[email protected]>
Date: Sat Aug 22 13:30:19 2015 -0700
HDFS-8934. Move ShortCircuitShm to hdfs-client. Contributed by Mingliang
Liu.
... it is because I get this when I try to run asyncfswal on
hadoop-2.7.4-SNAPSHOT
2017-12-05 21:52:48,523 DEBUG [main]
asyncfs.FanOutOneBlockAsyncDFSOutputHelper: No PBHelperClient class found,
should be hadoop 2.7-
java.lang.ClassNotFoundException:
org.apache.hadoop.hdfs.protocolPB.PBHelperClient
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at
org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.createPBHelper(FanOutOneBlockAsyncDFSOutputHelper.java:413)
at
org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.<clinit>(FanOutOneBlockAsyncDFSOutputHelper.java:546)
at
org.apache.hadoop.hbase.io.asyncfs.AsyncFSOutputHelper.createOutput(AsyncFSOutputHelper.java:62)
at
org.apache.hadoop.hbase.regionserver.wal.AsyncProtobufLogWriter.initOutput(AsyncProtobufLogWriter.java:158)
at
org.apache.hadoop.hbase.regionserver.wal.AbstractProtobufLogWriter.init(AbstractProtobufLogWriter.java:167)
at
org.apache.hadoop.hbase.wal.AsyncFSWALProvider.createAsyncWriter(AsyncFSWALProvider.java:100)
at
org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL.createWriterInstance(AsyncFSWAL.java:621)
at
org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL.createWriterInstance(AsyncFSWAL.java:131)
at
org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL.rollWriter(AbstractFSWAL.java:751)
at
org.apache.hadoop.hbase.regionserver.wal.AbstractFSWAL.rollWriter(AbstractFSWAL.java:489)
at
org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL.<init>(AsyncFSWAL.java:257)
at
org.apache.hadoop.hbase.wal.AsyncFSWALProvider.createWAL(AsyncFSWALProvider.java:70)
at
org.apache.hadoop.hbase.wal.AsyncFSWALProvider.createWAL(AsyncFSWALProvider.java:45)
at
org.apache.hadoop.hbase.wal.AbstractFSWALProvider.getWAL(AbstractFSWALProvider.java:139)
at
org.apache.hadoop.hbase.wal.AbstractFSWALProvider.getWAL(AbstractFSWALProvider.java:55)
at org.apache.hadoop.hbase.wal.WALFactory.getWAL(WALFactory.java:244)
at
org.apache.hadoop.hbase.wal.WALPerformanceEvaluation.openRegion(WALPerformanceEvaluation.java:502)
at
org.apache.hadoop.hbase.wal.WALPerformanceEvaluation.run(WALPerformanceEvaluation.java:336)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
at
org.apache.hadoop.hbase.wal.WALPerformanceEvaluation.innerMain(WALPerformanceEvaluation.java:597)
at
org.apache.hadoop.hbase.wal.WALPerformanceEvaluation.main(WALPerformanceEvaluation.java:601)
Do you not get the above?
> Make AsyncFSWAL as our default WAL
> ----------------------------------
>
> Key: HBASE-15536
> URL: https://issues.apache.org/jira/browse/HBASE-15536
> Project: HBase
> Issue Type: Sub-task
> Components: wal
> Affects Versions: 2.0.0
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Critical
> Fix For: 2.0.0
>
> Attachments: HBASE-15536-v1.patch, HBASE-15536-v2.patch,
> HBASE-15536-v3.patch, HBASE-15536-v4.patch, HBASE-15536-v5.patch,
> HBASE-15536.patch, latesttrunk_asyncWAL_50threads_10cols.jfr,
> latesttrunk_defaultWAL_50threads_10cols.jfr
>
>
> As it should be predicated on passing basic cluster ITBLL
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