About kolli_sandeep

wjsandman · ‎02-29-2024

Maybe so, but a huge flaw of shared communities like this is the proliferation of answers to the same questions that are variations on a theme. Brian Chan had the exact issue I was seeing. Putting the answer to the problem WITH the stated problem makes more sense that simply parroting his question. Linking the two post is indeed better, but the one is forced to hop back and forth between posts for context.

rki_ · ‎05-18-2023

Hi @kolli_sandeep , I believe you are talking about Secondary Namenode and not the Standby Namenode on a Non-HA cluster. If so, the functionality of the Secondary Namenode would be to perform the checkpointing of the fsimage with the new edits. The Secondary NameNode does require some memory to hold the data structures and objects necessary for merging the edits log and the FsImage. However, it does not load the entire FsImage into memory at once. As such, I would suggest keeping the heap to atleast 2x times the fsimage fpr smooth functioning.

AshishKr · ‎05-02-2023

Please add zkcli command to login in znode and remove directory. Hope you understand. zookeeper-client -server <zookeeper-server-host>:2181 (May use sudo if permission issue or login from HDFS User) ls / or ls /hadoop-ha (If you don't see any znode /hadoop-ha in ZK znode list, skip the step below) rmr /hadoop-ha/nameservice1

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