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Posted to issues@hbase.apache.org by "Anoop Sam John (JIRA)" <ji...@apache.org> on 2016/07/07 05:58:11 UTC
[jira] [Commented] (HBASE-16189) [Rolling Upgrade] 2.0 hfiles
cannot be opened by 1.x servers
[ https://issues.apache.org/jira/browse/HBASE-16189?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15365655#comment-15365655 ]
Anoop Sam John commented on HBASE-16189:
----------------------------------------
So a cluster RS is 2.0 and then wrote some files and then reverted back to 1.x. ?
> [Rolling Upgrade] 2.0 hfiles cannot be opened by 1.x servers
> ------------------------------------------------------------
>
> Key: HBASE-16189
> URL: https://issues.apache.org/jira/browse/HBASE-16189
> Project: HBase
> Issue Type: Sub-task
> Components: migration
> Reporter: Enis Soztutar
> Priority: Critical
> Fix For: 2.0.0
>
>
> HBASE-10800 added MetaCellComparator, which gets written to the HFile. 1.x code does not have the new class, hence fails to open the regions. I did not check whether this is only for meta or for regular tables as well.
> {code}
> Caused by: org.apache.hadoop.hbase.io.hfile.CorruptHFileException: Problem reading HFile Trailer from file hdfs://cn017.l42scl.hortonworks.com:8020/apps/hbase/data/data/hbase/meta/1588230740/info/aa96e4ef463b4a82956330b236440437
> at org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:483)
> at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:511)
> at org.apache.hadoop.hbase.regionserver.StoreFile$Reader.<init>(StoreFile.java:1123)
> at org.apache.hadoop.hbase.regionserver.StoreFileInfo.open(StoreFileInfo.java:267)
> at org.apache.hadoop.hbase.regionserver.StoreFile.open(StoreFile.java:409)
> at org.apache.hadoop.hbase.regionserver.StoreFile.createReader(StoreFile.java:512)
> at org.apache.hadoop.hbase.regionserver.HStore.createStoreFileAndReader(HStore.java:687)
> at org.apache.hadoop.hbase.regionserver.HStore.access$000(HStore.java:130)
> at org.apache.hadoop.hbase.regionserver.HStore$1.call(HStore.java:554)
> at org.apache.hadoop.hbase.regionserver.HStore$1.call(HStore.java:551)
> ... 6 more
> Caused by: java.io.IOException: java.lang.ClassNotFoundException: org.apache.hadoop.hbase.CellComparator$MetaCellComparator
> at org.apache.hadoop.hbase.io.hfile.FixedFileTrailer.getComparatorClass(FixedFileTrailer.java:581)
> at org.apache.hadoop.hbase.io.hfile.FixedFileTrailer.deserializeFromPB(FixedFileTrailer.java:300)
> at org.apache.hadoop.hbase.io.hfile.FixedFileTrailer.deserialize(FixedFileTrailer.java:242)
> at org.apache.hadoop.hbase.io.hfile.FixedFileTrailer.readFromStream(FixedFileTrailer.java:407)
> at org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:468)
> ... 15 more
> Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.hbase.CellComparator$MetaCellComparator
> at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
> 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.hfile.FixedFileTrailer.getComparatorClass(FixedFileTrailer.java:579)
> {code}
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