Also, it will not work AT ALL with data from the old version. you need to start fresh.
-Jonathan On Wed, Mar 11, 2009 at 4:00 PM, Jonathan Ellis <[email protected]> wrote: > the config format changed. now you need to specify the cfname as an > attribute: > > <ColumnFamily Index="Name" Name="Standard1"/> > > -Jonathan > > On Wed, Mar 11, 2009 at 3:52 PM, Jiansheng Huang <[email protected]> > wrote: >> >> >> ---------- Forwarded message ---------- >> From: Jiansheng Huang <[email protected]> >> Date: Wed, Mar 11, 2009 at 2:49 PM >> Subject: NPE in apache cassandra >> To: [email protected], Avinash Lakshman >> <[email protected]>, Prashant Malik <[email protected]> >> Cc: [email protected] >> >> >> Hi folks, I checked out the new code from apache and compiled it. When I >> start up the server with a clean installation base (i.e., without using any >> system/user data from previous installation), >> I got the following. >> >> UNCAUGHT EXCEPTION IN main() >> java.lang.NullPointerException >> at java.io.DataOutputStream.writeUTF(DataOutputStream.java:347) >> at java.io.DataOutputStream.writeUTF(DataOutputStream.java:323) >> at >> org.apache.cassandra.db.Table$TableMetadataSerializer.serialize(Table.java:254) >> at >> org.apache.cassandra.db.Table$TableMetadataSerializer.serialize(Table.java:244) >> at org.apache.cassandra.db.Table$TableMetadata.apply(Table.java:209) >> at org.apache.cassandra.db.DBManager.storeMetadata(DBManager.java:150) >> at org.apache.cassandra.db.DBManager.<init>(DBManager.java:102) >> at org.apache.cassandra.db.DBManager.instance(DBManager.java:61) >> at >> org.apache.cassandra.service.StorageService.start(StorageService.java:465) >> at >> org.apache.cassandra.service.CassandraServer.start(CassandraServer.java:110) >> at >> org.apache.cassandra.service.CassandraServer.main(CassandraServer.java:1078) >> Disconnected from the target VM, address: '127.0.0.1:45693', transport: >> 'socket' >> >> I did some debugging and found that in the following code, the first entry >> in cfNames is always null. Is it safe to say that if cfName is null, then we >> don't want to do the writings? >> >> public void serialize(TableMetadata tmetadata, DataOutputStream dos) throws >> IOException >> { >> int size = tmetadata.cfIdMap_.size(); >> dos.writeInt(size); >> Set<String> cfNames = tmetadata.cfIdMap_.keySet(); >> >> for ( String cfName : cfNames ) >> { >> dos.writeUTF(cfName); >> dos.writeInt( tmetadata.cfIdMap_.get(cfName).intValue() ); >> dos.writeUTF(tmetadata.getColumnFamilyType(cfName)); >> } >> } >> >> A related question I have is what's the procedure for us to check in code? I >> have made some changes for adding latency counters in the server and >> exposing them through http. Would be good to check in the changes and minor >> fixes so that I don't have to risk of losing them ... >> >> Thanks, >> >> Jiansheng >> >> >> >> >
