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From Jared Biel <jared.b...@bolderthinking.com>
Subject Output from FailureDetector MBean changed in 2.1.10
Date Thu, 08 Oct 2015 17:28:08 GMT
Hello,

We use the output from the AllEndpointStates attribute of the
org.apache.cassandra.net:type=FailureDetector MBean via MX4J for basic
monitoring/sanity checking. I've found that the output changed between
2.1.9 and 2.1.10; there is now additional info for some of the keys (DC,
RELEASE_VERSION, STATUS, etc.)

Is this maybe due to CASSANDRA-10330
<https://issues.apache.org/jira/browse/CASSANDRA-10330>? I perused the
changelog, JIRA, and the git repo and didn't see anything else that really
stuck out at me. Is the new output documented somewhere?

*Example 2.1.9 output:*
["DC:us-west-2",
 "HOST_ID:ed17c00e-2015-4b0f-9ee1-fa96e6c2ff8c",
 "LOAD:3525337.0",
 "NET_VERSION:8",
 "RACK:2a",
 "RELEASE_VERSION:2.1.9",
 "RPC_ADDRESS:1.2.3.4",
 "SCHEMA:b3a65c2a-8955-30f3-b403-54db3260f777",
 "SEVERITY:0.0",
 "STATUS:NORMAL,-1012622047045121026",
 "generation:1441736600",
 "heartbeat:7847815"]

*Example 2.1.10 output:*
["DC:6:us-east",
 "HOST_ID:2:8c8ed6f6-84d9-494d-a6c3-a9701cefe347",
 "LOAD:537977:1.45221778E8",
 "NET_VERSION:1:8",
 "RACK:8:1b",
 "RELEASE_VERSION:4:2.1.10",
 "RPC_ADDRESS:3:1.2.3.4",
 "SCHEMA:10:d58b9de5-9e25-3128-b07e-dfa0b2568ae8",
 "SEVERITY:538103:0.0",
 "STATUS:14:NORMAL,-1022178689192707266",
 "TOKENS:13:<hidden>",
 "generation:1444146690",
 "heartbeat:538104"]

Thanks!

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