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I wonder why nodetools don't know the percentage of the ring handeld by my node...

I created this keyspace with

CREATE KEYSPACE mykeyspace WITH replication = {'class': 'SimpleStrategy', 'replication_factor': '3'} AND durable_writes = true;

when nodetool status

Someone has a clue?

Jurudocs
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3 Answers3

35

okay got it. I have to specify a keyspace!

nodetool status mykeyspace

does the trick

muru
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Jurudocs
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Do you get this at the bottom?

Note: Non-system keyspaces don't have the same replication settings, effective ownership information is meaningless

Do you have an opscenter / other keyspaces with different replication settings? In which case, ownership is "meaningless", and what you get is a ?

ashic
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  • jep you are right...that's what it says! What is it trying to tell me? – Jurudocs Apr 28 '15 at 14:26
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    Remember cassandra data is distributed across the nodes in the cluster. If all keyspaces have the same replication settings, then you can say node X own 25% of the data (or 30% or 10%...). However, if the replication settings across the keyspaces are different, there's no longer an "equal" distribution of data. A node may have data from one keyspace, or another with different replication parameters. As such, a figure like 25% doesn't mean anything - it might be coz replication's not working, or coz the node is "serving" little from a keyspace. Hence the message and the "?". – ashic Apr 28 '15 at 14:32
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These steps helped me. Kill the demon and restart Casansdra.

nodetool status ERROR>>

Note: Non-system keyspaces don't have the same replication settings, effective ownership information is meaningless

Kill cansandra demon. nodetool stopdemon systemctl status cassandra systemctl start cassandra nodetool status Good [root@ip-10-0-1-10 centos]# cqlsh localhost

narendra vemuri
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