[
https://issues.apache.org/jira/browse/HBASE-13428?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16171808#comment-16171808
]
stack commented on HBASE-13428:
-------------------------------
If you get this exception starting up hbase (usually an hbase minicluster):
{code}
Caused by: java.lang.RuntimeException: Failed construction of Master: class
org.apache.hadoop.hbase.master.HMasterorg.apache.hadoop.hbase.shaded.io.netty.channel.epoll.NativeStaticallyReferencedJniMethods.epollin()I
at
org.apache.hadoop.hbase.util.JVMClusterUtil.createMasterThread(JVMClusterUtil.java:145)
at
org.apache.hadoop.hbase.LocalHBaseCluster.addMaster(LocalHBaseCluster.java:217)
at
org.apache.hadoop.hbase.LocalHBaseCluster.<init>(LocalHBaseCluster.java:152)
at
org.apache.hadoop.hbase.MiniHBaseCluster.init(MiniHBaseCluster.java:214)
... 16 more
Caused by: java.lang.UnsatisfiedLinkError: failed to load the required native
library
at
org.apache.hadoop.hbase.shaded.io.netty.channel.epoll.Epoll.ensureAvailability(Epoll.java:78)
at
org.apache.hadoop.hbase.shaded.io.netty.channel.epoll.EpollEventLoopGroup.<clinit>(EpollEventLoopGroup.java:38)
at
org.apache.hadoop.hbase.util.NettyEventLoopGroupConfig.<init>(NettyEventLoopGroupConfig.java:61)
at
org.apache.hadoop.hbase.regionserver.HRegionServer.<init>(HRegionServer.java:552)
at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:475)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:408)
at
org.apache.hadoop.hbase.util.JVMClusterUtil.createMasterThread(JVMClusterUtil.java:140)
... 19 more
Caused by: java.lang.UnsatisfiedLinkError:
org.apache.hadoop.hbase.shaded.io.netty.channel.epoll.NativeStaticallyReferencedJniMethods.epollin()I
at
org.apache.hadoop.hbase.shaded.io.netty.channel.epoll.NativeStaticallyReferencedJniMethods.epollin(Native
Method)
at
org.apache.hadoop.hbase.shaded.io.netty.channel.epoll.Native.<clinit>(Native.java:66)
at
org.apache.hadoop.hbase.shaded.io.netty.channel.epoll.Epoll.<clinit>(Epoll.java:33)
... 28 more
{code}
... then see http://hbase.apache.org/book.html#thirdparty When an hbase
instance is started, it must have a netty flag set on the cmdline so our shaded
netty can find its native lib implementation. This is the flag that needs to be
added
{code}-Dorg.apache.hadoop.hbase.shaded.io.netty.packagePrefix=org.apache.hadoop.hbase.shaded.{code}
(include the ending period).
> Migration to hbase-2.0.0
> ------------------------
>
> Key: HBASE-13428
> URL: https://issues.apache.org/jira/browse/HBASE-13428
> Project: HBase
> Issue Type: Umbrella
> Components: migration
> Reporter: stack
> Priority: Blocker
> Fix For: 2.0.0
>
>
> Opening a 2.0 umbrella migration issue. Lets hang off this one any tools and
> expectations migrating from 1.0 (or earlier) to 2.0. So far there are none
> that I know of though there is an expectation in HBASE-13373 that hfiles are
> at least major version 2 and minor version 3. Lets list all such
> expectations, etc., here.
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