我下載了DataStax Enterprise,我試圖運行以下他的投資組合示例(www.datastax.com/docs/datastax_enterprise2.2/solutions/dse_demo#dse-demo),但我被卡住了。我遇到的問題是我無法在節點上啓動作業跟蹤器。DataStax創建Job Tracker的問題
我在Ubuntu上使用dse的3.0.1版本。由於我只使用一臺機器,因此我還設置了一個節點。我已經啓動了一個節點,並且運行opscenterd和opscenter-agent。
當我運行:
dse cassandra -t -j
我得到以下輸出:
xss = -ea -javaagent:/usr/share/dse/cassandra/lib/jamm-0.2.5.jar -XX:+UseThreadPriorities -XX:ThreadPriorityPolicy=42 -Xms1024M -Xmx1024M -Xmn200M -XX:+HeapDumpOnOutOfMemoryError -Xss180k
Error: Exception thrown by the agent : java.rmi.server.ExportException: Port already in use: 7199; nested exception is: java.net.BindException: Address already in use
當嘗試,而使用dsetool:
dsetool movejt localhost
我看到,在日誌/卡桑德拉/ system.log,如果因爲失敗:
Caused by: InvalidRequestException(why:Keyspace dse_system does not exist)
at org.apache.cassandra.thrift.ThriftValidation.validateTable(ThriftValidation.java:83) at org.apache.cassandra.thrift.ThriftValidation.validateColumnFamily(ThriftValidation.java:135) at org.apache.cassandra.cql3.statements.SelectStatement$RawStatement.prepare(SelectStatement.java:973) at org.apache.cassandra.cql3.QueryProcessor.getStatement(QueryProcessor.java:243) at org.apache.cassandra.cql3.QueryProcessor.processInternal(QueryProcessor.java:129) at com.datastax.bdp.hadoop.mapred.TrackerManager.queryForJobTrackers(TrackerManager.java:202) at com.datastax.bdp.hadoop.mapred.TrackerManager.getJTNodes(TrackerManager.java:170)
什麼可能導致此?如何解決它?
您可以重新啓動服務器?如果清除/ var/lib/cassandra/data /目錄然後啓動服務器 – abhi 2013-04-24 05:22:00