Indexed columns don't have to exist. Try this after I post a fix for http://issues.apache.org/jira/browse/CASSANDRA-1415.
On Thu, Sep 16, 2010 at 12:53 PM, Colin Britton <colin.brit...@gmail.com> wrote: > Hi, > > I am using Casandra 0.7 trunk (r997357) and am having issues with a > secondary index. > > I have a ColumnFamily with a secondary index on column "X". Not every row of > data has column X. It looks like when I write a row that does not have > column X, Cassandra throws the following NPE when it writes the index: > > ERROR 20:05:37,015 Uncaught exception in thread > Thread[FLUSH-WRITER-POOL:1,5,main] > java.util.concurrent.ExecutionException: java.lang.RuntimeException: > java.lang.NullPointerException > at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222) > at java.util.concurrent.FutureTask.get(FutureTask.java:83) > at > org.apache.cassandra.concurrent.DebuggableThreadPoolExecutor.afterExecute(DebuggableThreadPoolExecutor.java:87) > at > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:888) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > at java.lang.Thread.run(Thread.java:637) > Caused by: java.lang.RuntimeException: java.lang.NullPointerException > at > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:34) > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441) > at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) > at java.util.concurrent.FutureTask.run(FutureTask.java:138) > at > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > ... 2 more > Caused by: java.lang.NullPointerException > at > org.apache.cassandra.io.sstable.IndexSummary.complete(IndexSummary.java:63) > at > org.apache.cassandra.io.sstable.SSTableWriter$IndexWriter.close(SSTableWriter.java:383) > at > org.apache.cassandra.io.sstable.SSTableWriter.closeAndOpenReader(SSTableWriter.java:138) > at > org.apache.cassandra.io.sstable.SSTableWriter.closeAndOpenReader(SSTableWriter.java:132) > at > org.apache.cassandra.db.Memtable.writeSortedContents(Memtable.java:156) > at org.apache.cassandra.db.Memtable.access$000(Memtable.java:44) > at org.apache.cassandra.db.Memtable$1.runMayThrow(Memtable.java:168) > at > org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30) > ... 6 more > > This doesn't necessarily happen as soon as the row is written; it happens > after you write enough rows, or after a restart of the server when the > commitlog is replayed. > > Is it the case that indexed columns must exist? > > Thanks > > Colin -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
