flume-sink報錯 : close() called when transaction is OPEN - you must either commit or rollback first

寫flume實時導入數據時報錯
flume-sink報錯 : close() called when transaction is OPEN - you must either commit or rollback first
在確認代碼無誤的情況下，引起該錯誤的主要原因是flume啓動給的內存不足引起的，
flume-ng 啓動文件默認的啓動內存爲20M
可以修改flume-ng文件：
JAVA_OPTS="-Xmx1024m" #設置大一點，默認是20M