More or less. NEWS.txt explains upgrade procedure in more detail. On Tue, Sep 13, 2011 at 8:43 AM, Roshan Dawrani <roshandawr...@gmail.com> wrote: > Hi. > Thanks for replying back. Just a quick cross-confirmation, if you don't > mind: > So, I can do the following without fearing any loss of data, etc? > * "nodetool drain" and bring down the 0.7.0 node (it's a one node setup that > I am upgrading) > * remove all files from saved_caches directory (both system*-KeyCache as > well as application-specific*-KeyCache files) > * bring up the new 0.8.5 node (pointing to same "data" and "commitlog" > directories) > The *KeyCache files can be removed safely in between, right? > Cheers. > On Tue, Sep 13, 2011 at 7:03 PM, Jonathan Ellis <jbel...@gmail.com> wrote: >> >> Just remove the row cache files. >> >> On Tue, Sep 13, 2011 at 8:23 AM, Roshan Dawrani <roshandawr...@gmail.com> >> wrote: >> > Hi, >> > I am in the process of upgrading Cassandra to the recently released >> > v0.8.5 >> > and facing an issue. >> > We had two Cassandra environments - one having 0.7.0 and another 0.7.2. >> > The >> > upgrade on 0.7.2 has happened smoothly, but on the environment having >> > 0.7.0, >> > when I make the switch, the DB fails to come up with the error below. >> > Can someone help please? >> > >> > ------------------------------------------------------------------------------------------------------------- >> > INFO 13:03:46,025 JNA not found. Native methods will be disabled. >> > INFO 13:03:46,034 Loading settings from >> > file:/apache-cassandra-0.8.5/conf/cassandra.yaml >> > INFO 13:03:46,195 DiskAccessMode 'auto' determined to be mmap, >> > indexAccessMode is mmap >> > ... >> > INFO 13:03:46,307 Removing compacted SSTable files (see >> > http://wiki.apache.org/cassandra/MemtableSSTable) >> > INFO 13:03:46,379 reading saved cache >> > /cassandra/saved_caches/system-IndexInfo-KeyCache >> > ERROR 13:03:46,380 Exception encountered during startup. >> > java.lang.NegativeArraySizeException >> > at >> > >> > org.apache.cassandra.cache.AutoSavingCache.readSaved(AutoSavingCache.java:130) >> > at >> > >> > org.apache.cassandra.db.ColumnFamilyStore.<init>(ColumnFamilyStore.java:273) >> > at >> > >> > org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:465) >> > at >> > >> > org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:435) >> > at org.apache.cassandra.db.Table.initCf(Table.java:369) >> > at org.apache.cassandra.db.Table.<init>(Table.java:306) >> > at org.apache.cassandra.db.Table.open(Table.java:111) >> > at >> > org.apache.cassandra.db.SystemTable.checkHealth(SystemTable.java:217) >> > at >> > >> > org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:154) >> > at >> > >> > org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:341) >> > at >> > >> > org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:97) >> > >> > ------------------------------------------------------------------------------------------------------------- >> > -- >> > Roshan >> > Blog: http://roshandawrani.wordpress.com/ >> > Twitter: @roshandawrani >> > Skype: roshandawrani >> > >> > >> >> >> >> -- >> Jonathan Ellis >> Project Chair, Apache Cassandra >> co-founder of DataStax, the source for professional Cassandra support >> http://www.datastax.com > > > > -- > Roshan > Blog: http://roshandawrani.wordpress.com/ > Twitter: @roshandawrani > Skype: roshandawrani > >
-- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
