Dear Jon: We just ran OfflineMetaRepair, while getting the following exceptions. Checked online...it seems that is bug. Any suggestions on how to check out the most-updated version of OfflineMetaRepair to work with our version of HBase? Thanks in advance.
12/04/15 12:28:35 INFO util.HBaseFsck: Loading HBase regioninfo from HDFS... 12/04/15 12:28:39 ERROR util.HBaseFsck: Bailed out due to: java.lang.IllegalArgumentException: Wrong FS: hdfs:// n4.example.com:12345/hbase/summba.yeezhao.content/03cde9116662fade27545d86ea71a372/.regioninfo, expected: file:/// at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:310) at org.apache.hadoop.fs.RawLocalFileSystem.pathToFile(RawLocalFileSystem.java:47) at org.apache.hadoop.fs.RawLocalFileSystem.getFileStatus(RawLocalFileSystem.java:357) at org.apache.hadoop.fs.FilterFileSystem.getFileStatus(FilterFileSystem.java:245) at org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSInputChecker.<init>(ChecksumFileSystem.java:125) at org.apache.hadoop.fs.ChecksumFileSystem.open(ChecksumFileSystem.java:283) at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:356) at org.apache.hadoop.hbase.util.HBaseFsck.loadMetaEntry(HBaseFsck.java:256) at org.apache.hadoop.hbase.util.HBaseFsck.loadTableInfo(HBaseFsck.java:284) at org.apache.hadoop.hbase.util.HBaseFsck.rebuildMeta(HBaseFsck.java:402) at org.apache.hadoop.hbase.util.hbck.OfflineMetaRepair.main(OfflineMetaRepair.java:90) We checked on hdfs, and the files shown in exception are available. Any point Best, Arber On Sun, Apr 15, 2012 at 11:48 AM, Yabo Xu <arber.resea...@gmail.com> wrote: > Thanks, St. Ack & Jon. To answer St. Ack's question, we are using HBase > 0.90.6, and the data corruption happens when some data nodes are lost due > to the power issue. We've tried hbck and it reports that ROOT is not found, > and hfsk reports two blocks of ROOT and META are CORUPT status. > > Jon: We just checked OfflineMetaRepair, it seems to be the right tool, and > is trying it now. Just want to confirm: is it compatible with 0.90.6? > > Best, > Arber > > > On Sun, Apr 15, 2012 at 8:55 AM, Jonathan Hsieh <j...@cloudera.com> wrote: > >> There is a two tools that can try to help you (unfortunately, I haven't >> written the user documentation for either yet) >> >> One is called OfflineMetaRepair. This assumes that hbase is offline reads >> the data in HDFS to create a new ROOT and new META. If you data is in >> good shape, this should work for you. Depending on which version of >> hadoop >> you are using, you may need to apply HBASE-5488. >> >> On the latest branches of hbase (0.90/0.92/0.94/trunk) the hbck tool has >> been greatly enhanced and may be able to help out as well once an initial >> META table is built, and your hbase is able to get online. This will >> currently will require a patch HBASE-5781 to be applied to be useful. >> >> Jon. >> >> >> On Sat, Apr 14, 2012 at 1:35 PM, Yabo Xu <arber.resea...@gmail.com> >> wrote: >> >> > Hi all: >> > >> > Just had a desperate night....We had a small production hbase cluster( >> 8 >> > nodes), and due to the accident crash of a few nodes, ROOT and META are >> > corrupted, while the rest of tables are mostly there. Are there any way >> to >> > restore ROOT and META? >> > >> > Any of the hints would be appreciated very much! Waiting on line... >> > >> > Best, >> > Arber >> > >> >> >> >> -- >> // Jonathan Hsieh (shay) >> // Software Engineer, Cloudera >> // j...@cloudera.com >> > >
