Himanshu Vashishtha created HBASE-9497:
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Summary: Old .META. .tableinfo file kills HMaster
Key: HBASE-9497
URL: https://issues.apache.org/jira/browse/HBASE-9497
Project: HBase
Issue Type: Bug
Components: master, migration
Affects Versions: 0.95.2
Reporter: Himanshu Vashishtha
Fix For: 0.98.0, 0.96.0
In pre-0.96, .META. has .tableinfo files which refer to .META. On startup,
master tries to read it and aborts since the table name has changed. The .META.
.tableinfo files are not being created in 0.94.x (fixed for 96 in HBASE-6971;
but this can be reproduced when migrating from 0.92 -> 0.94 -> 0.96. Our old
users would be affected by this.
{code}
java.lang.IllegalArgumentException: .META. no longer exists. The table has been
renamed to hbase:meta
at org.apache.hadoop.hbase.TableName.valueOf(TableName.java:291)
at org.apache.hadoop.hbase.TableName.valueOf(TableName.java:283)
at
org.apache.hadoop.hbase.HTableDescriptor.readFields(HTableDescriptor.java:960)
at
org.apache.hadoop.hbase.util.Writables.getWritable(Writables.java:131)
at
org.apache.hadoop.hbase.util.Writables.getWritable(Writables.java:101)
at
org.apache.hadoop.hbase.HTableDescriptor.parseFrom(HTableDescriptor.java:1407)
at
org.apache.hadoop.hbase.util.FSTableDescriptors.readTableDescriptor(FSTableDescriptors.java:521)
at
org.apache.hadoop.hbase.util.FSTableDescriptors.createTableDescriptorForTableDirectory(FSTableDescriptors.java:707)
at
org.apache.hadoop.hbase.util.FSTableDescriptors.createTableDescriptor(FSTableDescriptors.java:683)
at
org.apache.hadoop.hbase.util.FSTableDescriptors.createTableDescriptor(FSTableDescriptors.java:670)
at
org.apache.hadoop.hbase.master.MasterFileSystem.checkRootDir(MasterFileSystem.java:485)
at
org.apache.hadoop.hbase.master.MasterFileSystem.createInitialFileSystemLayout(MasterFileSystem.java:145)
at
org.apache.hadoop.hbase.master.MasterFileSystem.<init>(MasterFileSystem.java:129)
at
org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:761)
{code}
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