Enis Soztutar created HBASE-16189: ------------------------------------- Summary: [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 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} -- This message was sent by Atlassian JIRA (v6.3.4#6332)