my standby namenode was down. when i try to start the standby namenode from ambari it was come up. what would be the reason for standby namenode down. please let me know where can i find standby namenode logs.
Please help me..
We are not looking for the NameNode logs here but I suspect some memory leak that brings down the Standby namenode look for something memory related like
kernel: Memory cgroup out of memory: kernel: Killed process xxxx
@kanna k, you can find out location of standby namenode logs from hadoop-env.sh. Look for HADOOP_LOG_DIR value to find out correct location of the log .
In this example, standby namenode log will be present at /var/log/hadoop/hdfs dir.