我尝试在我的 Ubuntu 13.04 上安装 Cassandra 2.0,但是当我尝试启动它时出现此错误:
java.lang.UnsupportedOperationException: Commitlog segment is too old to open; upgrade to 1.2.5+ first
at org.apache.cassandra.db.commitlog.CommitLogDescriptor.fromFileName(CommitLogDescriptor.java:65)
at org.apache.cassandra.db.commitlog.CommitLogSegment$CommitLogSegmentFileComparator.compare(CommitLogSegment.java:391)
at org.apache.cassandra.db.commitlog.CommitLogSegment$CommitLogSegmentFileComparator.compare(CommitLogSegment.java:386)
at java.util.TimSort.countRunAndMakeAscending(TimSort.java:324)
at java.util.TimSort.sort(TimSort.java:189)
at java.util.TimSort.sort(TimSort.java:173)
at java.util.Arrays.sort(Arrays.java:659)
at org.apache.cassandra.db.commitlog.CommitLog.recover(CommitLog.java:124)
at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:300)
at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:443)
at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:486)
有谁能够帮我?