When trying to connect to CQLSH I get this

“Cannot achieve consistency level QUORUM”

2 of my 3 nodes are down. So this error is correct. But how do I sign into 
CQLSH to change this? Or better, how do I get the other 2 nodes back up?

From: Akhil Mehra [mailto:akhilme...@gmail.com]
Sent: 23 August 2017 10:05
To: user@cassandra.apache.org
Subject: Re: C* 3 node issue -Urgent

The cqlsh image say bad credentials. Just confirming that you have the correct 
username/password when logging on.

By turing on authentication I am assuming you mean using the 
PasswordAuthenticator instead of the AllowAllAuthenticator in the yaml.

Cheers,
Akhil
On 23/08/2017, at 8:59 PM, Jonathan Baynes 
<jonathan.bay...@tradeweb.com<mailto:jonathan.bay...@tradeweb.com>> wrote:

I will also  mention I am on:

C* 3.0.11
Linux Oracle red hat 7.1
Java 1.8.0.31
Python 2.7

From: Jonathan Baynes
Sent: 23 August 2017 09:47
To: 'user@cassandra.apache.org<mailto:user@cassandra.apache.org>'
Cc: Stewart Allman
Subject: C* 3 node issue -Urgent

Hi Everyone.

I  need the communities help here.

I have attempted this morning to turn on JMX authentication for Nodetool. I’ve 
gone into the Cassandra-env.sh file and updated the following:

LOCAL_JMX=No
JVM_OPTS="$JVM_OPTS -Dcom.sun.management.jmxremote.authenticate=true"
JVM_OPTS="$JVM_OPTS 
-Dcom.sun.management.jmxremote.password.file=/opt/cassandra/application/jmxremote.password"

Then I restarted each node, I have 3 of them  in a single DC, Single Rack.
115.63 (seed)
115.64
115.65 (seed)

Nodetool status shows this

<image004.png>

In the Yaml I have Authentication turned ON.
Cassandra has been working flawlessly up until the moment I restarted the nodes.

as it stands right now..

115.63 is up, but I cannot connect to CQLSH
I get the following error
<image005.png>

When I check the logs I on 115.64 and 115.65 I can see this

WARN  [OptionalTasks:1] 2017-08-23 08:37:56,508 CassandraRoleManager.java:355 - 
CassandraRoleManager skipped default role setup: some nodes were not ready
INFO  [OptionalTasks:1] 2017-08-23 08:37:56,508 CassandraRoleManager.java:394 - 
Setup task failed with error, rescheduling
Caused by: java.lang.RuntimeException: 
org.apache.cassandra.exceptions.UnavailableException: Cannot achieve 
consistency level LOCAL_ONE
        at 
org.apache.cassandra.auth.CassandraRoleManager.getRole(CassandraRoleManager.java:512)
 ~[apache-cassandra-3.0.11.jar:3.0.11]
        at 
org.apache.cassandra.auth.CassandraRoleManager.collectRoles(CassandraRoleManager.java:480)
 ~[apache-cassandra-3.0.11.jar:3.0.11]
        at 
org.apache.cassandra.auth.CassandraRoleManager.getRoles(CassandraRoleManager.java:284)
 ~[apache-cassandra-3.0.11.jar:3.0.11]
        at org.apache.cassandra.auth.RolesCache$1.load(RolesCache.java:122) 
~[apache-cassandra-3.0.11.jar:3.0.11]
        at org.apache.cassandra.auth.RolesCache$1.load(RolesCache.java:119) 
~[apache-cassandra-3.0.11.jar:3.0.11]
        at 
com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527)
 ~[guava-18.0.jar:na]
        at 
com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319) 
~[guava-18.0.jar:na]
        at 
com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282)
 ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197) 
~[guava-18.0.jar:na]
        ... 38 common frames omitted
Caused by: org.apache.cassandra.exceptions.UnavailableException: Cannot achieve 
consistency level LOCAL_ONE


I have no idea what to do, so any help would be amazing right now..

Thanks
J

Jonathan Baynes
DBA
Tradeweb Europe Limited
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