94 and 98 differs in directory layout so 98 is not able to read 94 layout unless you run the migration tool which is basically moving all the data in a "default" namespace directory e.g. /hbase/table -> /hbase/data/default/table /hbase/.archive/table -> /hbase/archive/default/table
Matteo On Mon, Sep 15, 2014 at 6:17 PM, Gautam <gautamkows...@gmail.com> wrote: > Yep, looks like the CDH distro backports HBASE-7987. Having said that, is > there a transition path for us or are we hosed :-) ? In general, what's the > recommended way to achieve this, at this point I feel i'm going around the > system to achieve what I want. If nothing else works with export snapshot > should I just downgrade to 94, export snapshot and then upgrade to 98? Is > the upgrade migration path different from what export snapshot does (i'd > imagine yes)? > > Cheers, > -Gautam. > > > > > On Mon, Sep 15, 2014 at 5:14 PM, Ted Yu <yuzhih...@gmail.com> wrote: > > > bq. 98.1 on dest cluster > > > > Looking at the history for SnapshotManifestV1, it came with HBASE-7987 > > which went to 0.99.0 > > > > Perhaps you're using a distro with HBASE-7987 ? > > > > On Mon, Sep 15, 2014 at 4:58 PM, Gautam <gautamkows...@gmail.com> wrote: > > > > > Hello, > > > I'm trying to copy data between Hbase clusters on different > > > versions. I am using : > > > > > > /usr/bin/hbase org.apache.hadoop.hbase.snapshot.ExportSnapshot > > > -chuser hbase > > > -chgroup hadoop > > > -snapshot msg_snapshot > > > -mappers 50 > > > -copy-from hftp://src-cluster:50070/hbase > > > -copy-to hdfs:/dest-cluster:8020/hbase > > > > > > > > > Till now, based on various tips from the mailing list, I have modified > > the > > > source cluster data dir paths to mimic the 98 convention (archive, > table > > > data paths, etc). This helped in jumping some roadblocks but not all. > > > > > > This is what I see now : > > > > > > > > > 14/09/15 23:34:59 ERROR snapshot.ExportSnapshot: Snapshot export failed > > > java.io.IOException > > > at > > > > > > > > > org.apache.hadoop.hbase.snapshot.SnapshotManifestV1.loadRegionManifests(SnapshotManifestV1.java:145) > > > at > > > > > > > > > org.apache.hadoop.hbase.snapshot.SnapshotManifest.load(SnapshotManifest.java:265) > > > at > > > > > > > > > org.apache.hadoop.hbase.snapshot.SnapshotManifest.open(SnapshotManifest.java:119) > > > at > > > > > > > > > org.apache.hadoop.hbase.snapshot.SnapshotReferenceUtil.visitTableStoreFiles(SnapshotReferenceUtil.java:125) > > > ... > > > .. > > > Caused by: java.io.IOException: read=-1, wanted=4 > > > at org.apache.hadoop.hbase.io.Reference.read(Reference.java:175) > > > at > > > > > > > > > org.apache.hadoop.hbase.regionserver.StoreFileInfo.<init>(StoreFileInfo.java:115) > > > at > > > > > > > > > org.apache.hadoop.hbase.regionserver.HRegionFileSystem.getStoreFiles(HRegionFileSystem.java > > > .. > > > > > > > > > Fails while trying to read refernce hfile. Is this something folks have > > > done before and/or is possible to do? I'd really like to do this > without > > > having to upgrade my source cluster or downgrade my dest cluster. > > > > > > I'm using 94.6 on source cluster and 98.1 on dest cluster. > > > > > > > > > Cheers, > > > -Gautam. > > > > > > > > > -- > "If you really want something in this life, you have to work for it. Now, > quiet! They're about to announce the lottery numbers..." >
