On Thu, May 5, 2011 at 8:38 PM, Wenjun Che <wen...@openf.in> wrote: > Hello, > > I have a one node cluster (refresh install from 0.7.4 and upgraded to 0.7.5 > last week). The data is being backed up by a cron job that periodically > tar/gzip entire > var/lib directory. when I tested the backup by restoring the last tar file, > I am seeing the following exception: > > DEBUG 13:45:37,830 Load statistics for > \var\lib\cassandra\data\Appoji\ApplicationUserPermission-f-6 > ERROR 13:45:37,832 Exception encountered during startup. > java.lang.AssertionError > at > org.apache.cassandra.io.sstable.SSTable.estimateRowsFromIndex(SSTable.java:233) > at > org.apache.cassandra.io.sstable.SSTableReader.load(SSTableReader.java:286) > at > org.apache.cassandra.io.sstable.SSTableReader.open(SSTableReader.java:191) > at > org.apache.cassandra.db.ColumnFamilyStore.<init>(ColumnFamilyStore.java:232) > at > org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java: > 480) > at > org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java: > 461) > at org.apache.cassandra.db.Table.initCf(Table.java:308) > at org.apache.cassandra.db.Table.<init>(Table.java:245) > at org.apache.cassandra.db.Table.open(Table.java:106) > at > org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:1 > 61) > at > org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.jav > a:315) > at > org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:79) > Exception encountered during startup. > > I checked few other earlier backup tar files and they seem to be fine. Can > this be caused by the way I am backing it up?
I think that could be triggered if you have a 0 bytes index file for instance, so if you had one such index file in the backup, that could be a problem. -- Sylvain
