Anshu Vajpayee created CASSANDRA-12001:
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Summary: nodetool stopdaemon doesn't stop cassandra gracefully
Key: CASSANDRA-12001
URL: https://issues.apache.org/jira/browse/CASSANDRA-12001
Project: Cassandra
Issue Type: Improvement
Components: Tools
Environment: Ubuntu: Linux 3.11.0-15-generic #25~precise1-Ubuntu SMP
Thu Jan 30 17:39:31 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
Cassandra Version :
cassandra -v
2.1.2
Reporter: Anshu Vajpayee
Priority: Minor
As per general opinion, nodetool stopdaemon should perform graceful shutdown
rater than crash killing of cassandra daemon (like iwth kill -9).
But It doesn't flush the memtables and also it doesn't stop the thrift and CQL
connection before crashing/stopping the node. It directly calls SIGTERM on
process as simple as kill -15.
Testing :
created a table like as below:
cqlsh:test_ks> create table t2(id1 int, id2 text, primary key(id1));
cqlsh:test_ks>
cqlsh:test_ks> insert into t2(id1,id2) values (1,'a');
cqlsh:test_ks> insert into t2(id1,id2) values (2,'a');
cqlsh:test_ks> insert into t2(id1,id2) values (3,'a');
cqlsh:test_ks> select * from t2;
id1 | id2
-----+-----
1 | a
2 | a
3 | a
Flush the memtable manually using nodetool flush
student@cascor:~/node1/apache-cassandra-2.1.2/bin$ nodetool flush
student@cascor:~/node1/apache-cassandra-2.1.2/bin$ cd
../data/data/test_ks/t2-a671f6b0319a11e6a91ae3263299699d/
student@cascor:~/node1/apache-cassandra-2.1.2/data/data/test_ks/t2-a671f6b0319a11e6a91ae3263299699d$
ls -ltr
total 36
-rw-rw-r-- 1 student student 16 Jun 13 12:14 test_ks-t2-ka-1-Filter.db
-rw-rw-r-- 1 student student 54 Jun 13 12:14 test_ks-t2-ka-1-Index.db
-rw-rw-r-- 1 student student 93 Jun 13 12:14 test_ks-t2-ka-1-Data.db
-rw-rw-r-- 1 student student 91 Jun 13 12:14 test_ks-t2-ka-1-TOC.txt
-rw-rw-r-- 1 student student 80 Jun 13 12:14 test_ks-t2-ka-1-Summary.db
-rw-rw-r-- 1 student student 4442 Jun 13 12:14 test_ks-t2-ka-1-Statistics.db
-rw-rw-r-- 1 student student 10 Jun 13 12:14 test_ks-t2-ka-1-Digest.sha1
-rw-rw-r-- 1 student student 43 Jun 13 12:14
test_ks-t2-ka-1-CompressionInfo.db
Made few more changes on table t2
cqlsh:test_ks> insert into t2(id1,id2) values (5,'a');
cqlsh:test_ks> insert into t2(id1,id2) values (6,'a');
cqlsh:test_ks> insert into t2(id1,id2) values (7,'a');
cqlsh:test_ks> insert into t2(id1,id2) values (8,'a');
cqlsh:test_ks> select * from t2;
id1 | id2
-----+-----
5 | a
1 | a
8 | a
2 | a
7 | a
6 | a
3 | a
Stopping the node using nodetool stopdaemon
student@cascor:~$ nodetool stopdaemon
Cassandra has shutdown.
error: Connection refused
-- StackTrace --
java.net.ConnectException: Connection refused
No new version of SStables . Reason stopdaemon doesn't run nodetool flush/drain
before actually stopping daemon.
student@cascor:~/node1/apache-cassandra-2.1.2/data/data/test_ks/t2-a671f6b0319a11e6a91ae3263299699d$
ls -ltr
total 36
-rw-rw-r-- 1 student student 16 Jun 13 12:14 test_ks-t2-ka-1-Filter.db
-rw-rw-r-- 1 student student 54 Jun 13 12:14 test_ks-t2-ka-1-Index.db
-rw-rw-r-- 1 student student 93 Jun 13 12:14 test_ks-t2-ka-1-Data.db
-rw-rw-r-- 1 student student 91 Jun 13 12:14 test_ks-t2-ka-1-TOC.txt
-rw-rw-r-- 1 student student 80 Jun 13 12:14 test_ks-t2-ka-1-Summary.db
-rw-rw-r-- 1 student student 4442 Jun 13 12:14 test_ks-t2-ka-1-Statistics.db
-rw-rw-r-- 1 student student 10 Jun 13 12:14 test_ks-t2-ka-1-Digest.sha1
-rw-rw-r-- 1 student student 43 Jun 13 12:14
test_ks-t2-ka-1-CompressionInfo.db
student@cascor:~/node1/apache-cassandra-2.1.2/data/data/test_ks/t2-a671f6b0319a11e6a91ae3263299699d$
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