I've provisions a Keyspace on AWS and in order to make sure it can achieve our desired performance I'm trying to run the cassandra-stress tool on it and compare it to other architectures we're experimenting with.
I managed to connect to it using the following cqlshrc:
[connection]
port = 9142
factory = cqlshlib.ssl.ssl_transport_factory
[ssl]
validate = true
certfile = /root/.cassandra/AmazonRootCA1.pem
And the following command (hoping that soon enough there will be Python3 support, the development was completed this February according to their Jira ticket):
cqlsh cassandra.eu-central-1.amazonaws.com 9142 -u "myuser-at-722222222222" -p "12/12ZmHmtD1klsDk9cgqt/XXXXXXXXxUz6Sy687z/U=" --ssl --cqlversion="3.4.4"
Surprisingly or not, when using the official AWS guides things tend to work.
So I went on and tried connecting the cassandra-stress tool (I have it inside a Docker container, I'd rather keep my OS Java free) to the same Keyspace.
First I converted the AWS AmazonRootCA1.pem into cassandra_truststore.jks using the following commands (explained here):
openssl x509 -outform der -in AmazonRootCA1.pem -out temp_file.der
keytool -import -alias cassandra -keystore cassandra_truststore.jks -file temp_file.der
Now when I'm trying to run the actual tool like this:
./cassandra-stress write -node cassandra.eu-central-1.amazonaws.com -port native=9142 thrift=9142 jmx=9142 -transport truststore=/root/.cassandra/cassandra_truststore.jks truststore-password=mypassword -mode native cql3 user="myuser-at-722222222222" password="12/12ZmHmtD1klsDk9cgqt/XXXXXXXXxUz6Sy687z/U="
I'm getting the following error:
******************** Stress Settings ********************
Command:
Type: write
Count: -1
No Warmup: false
Consistency Level: LOCAL_ONE
Target Uncertainty: 0.020
Minimum Uncertainty Measurements: 30
Maximum Uncertainty Measurements: 200
Key Size (bytes): 10
Counter Increment Distibution: add=fixed(1)
Rate:
Auto: true
Min Threads: 4
Max Threads: 1000
Population:
Sequence: 1..1000000
Order: ARBITRARY
Wrap: true
Insert:
Revisits: Uniform: min=1,max=1000000
Visits: Fixed: key=1
Row Population Ratio: Ratio: divisor=1.000000;delegate=Fixed: key=1
Batch Type: not batching
Columns:
Max Columns Per Key: 5
Column Names: [C0, C1, C2, C3, C4]
Comparator: AsciiType
Timestamp: null
Variable Column Count: false
Slice: false
Size Distribution: Fixed: key=34
Count Distribution: Fixed: key=5
Errors:
Ignore: false
Tries: 10
Log:
No Summary: false
No Settings: false
File: null
Interval Millis: 1000
Level: NORMAL
Mode:
API: JAVA_DRIVER_NATIVE
Connection Style: CQL_PREPARED
CQL Version: CQL3
Protocol Version: V4
Username: myuser-at-722222222222
Password: *suppressed*
Auth Provide Class: null
Max Pending Per Connection: 128
Connections Per Host: 8
Compression: NONE
Node:
Nodes: [cassandra.eu-central-1.amazonaws.com]
Is White List: false
Datacenter: null
Schema:
Keyspace: keyspace1
Replication Strategy: org.apache.cassandra.locator.SimpleStrategy
Replication Strategy Pptions: {replication_factor=1}
Table Compression: null
Table Compaction Strategy: null
Table Compaction Strategy Options: {}
Transport:
factory=org.apache.cassandra.thrift.TFramedTransportFactory; truststore=/root/.cassandra/cassandra_truststore.jks; truststore-password=mypassword; keystore=null; keystore-password=null; ssl-protocol=TLS; ssl-alg=SunX509; store-type=JKS; ssl-ciphers=TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA;
Port:
Native Port: 9142
Thrift Port: 9142
JMX Port: 9142
Send To Daemon:
*not set*
Graph:
File: null
Revision: unknown
Title: null
Operation: WRITE
TokenRange:
Wrap: false
Split Factor: 1
java.lang.RuntimeException: com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: cassandra.eu-central-1.amazonaws.com/3.127.48.183:9142 (com.datastax.driver.core.exceptions.TransportException: [cassandra.eu-central-1.amazonaws.com/3.127.48.183] Channel has been closed))
at org.apache.cassandra.stress.settings.StressSettings.getJavaDriverClient(StressSettings.java:220)
at org.apache.cassandra.stress.settings.SettingsSchema.createKeySpacesNative(SettingsSchema.java:79)
at org.apache.cassandra.stress.settings.SettingsSchema.createKeySpaces(SettingsSchema.java:69)
at org.apache.cassandra.stress.settings.StressSettings.maybeCreateKeyspaces(StressSettings.java:228)
at org.apache.cassandra.stress.StressAction.run(StressAction.java:57)
at org.apache.cassandra.stress.Stress.run(Stress.java:143)
at org.apache.cassandra.stress.Stress.main(Stress.java:62)
Caused by: com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: cassandra.eu-central-1.amazonaws.com/3.127.48.183:9142 (com.datastax.driver.core.exceptions.TransportException: [cassandra.eu-central-1.amazonaws.com/3.127.48.183] Channel has been closed))
at com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:233)
at com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:79)
at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1424)
at com.datastax.driver.core.Cluster.getMetadata(Cluster.java:403)
at org.apache.cassandra.stress.util.JavaDriverClient.connect(JavaDriverClient.java:160)
at org.apache.cassandra.stress.settings.StressSettings.getJavaDriverClient(StressSettings.java:211)
... 6 more
I've tried changing some parameters such as the jks password etc. (Just in case I was wrong) but I got a different error message so it's probably not the case.
Did I miss something?
Try using TLP Stress instead.
tlp-stress run RandomPartitionAccess -d 10m --host cassandra.us-east-1.amazonaws.com --port 9142 --username alice --password fLyWYFlTCD5J2gzGAZ –ssl --max-requests 4000 --dc us-east-2 --threads 10