状态处理的Stream例子
为了演示数据分区功能，以下命令使用Kafka作为 binder 部署了 Stream ：
dataflow:>stream create --name words --definition "http --server.port=9900 | splitter --expression=payload.split(' ') | log"
Created new stream 'words'
dataflow:>stream deploy words --properties "app.splitter.producer.partitionKeyExpression=payload,deployer.log.count=2"
Deployed stream 'words'
dataflow:>http post --target http://localhost:9900 --data "How much wood would a woodchuck chuck if a woodchuck could chuck wood"
> POST (text/plain;Charset=UTF-8) http://localhost:9900 How much wood would a woodchuck chuck if a woodchuck could chuck wood
> 202 ACCEPTED
dataflow:>runtime apps
╔════════════════════╤═══════════╤═══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╗
║App Id / Instance Id│Unit Status│ No. of Instances / Attributes ║
╠════════════════════╪═══════════╪═══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╣
║words.log-v1 │ deployed │ 2 ║
╟┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┼┈┈┈┈┈┈┈┈┈┈┈┼┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈╢
║ │ │ guid = 24166 ║
║ │ │ pid = 33097 ║
║ │ │ port = 24166 ║
║words.log-v1-0 │ deployed │ stderr = /var/folders/js/7b_pn0t575l790x7j61slyxc0000gn/T/spring-cloud-deployer-6467595568759190742/words-1542803461063/words.log-v1/stderr_0.log ║
║ │ │ stdout = /var/folders/js/7b_pn0t575l790x7j61slyxc0000gn/T/spring-cloud-deployer-6467595568759190742/words-1542803461063/words.log-v1/stdout_0.log ║
║ │ │ url = https://192.168.0.102:24166 ║
║ │ │working.dir = /var/folders/js/7b_pn0t575l790x7j61slyxc0000gn/T/spring-cloud-deployer-6467595568759190742/words-1542803461063/words.log-v1 ║
╟┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┼┈┈┈┈┈┈┈┈┈┈┈┼┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈╢
║ │ │ guid = 41269 ║
║ │ │ pid = 33098 ║
║ │ │ port = 41269 ║
║words.log-v1-1 │ deployed │ stderr = /var/folders/js/7b_pn0t575l790x7j61slyxc0000gn/T/spring-cloud-deployer-6467595568759190742/words-1542803461063/words.log-v1/stderr_1.log ║
║ │ │ stdout = /var/folders/js/7b_pn0t575l790x7j61slyxc0000gn/T/spring-cloud-deployer-6467595568759190742/words-1542803461063/words.log-v1/stdout_1.log ║
║ │ │ url = https://192.168.0.102:41269 ║
║ │ │working.dir = /var/folders/js/7b_pn0t575l790x7j61slyxc0000gn/T/spring-cloud-deployer-6467595568759190742/words-1542803461063/words.log-v1 ║
╟────────────────────┼───────────┼───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╢
║words.http-v1 │ deployed │ 1 ║
╟┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┼┈┈┈┈┈┈┈┈┈┈┈┼┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈╢
║ │ │ guid = 9900 ║
║ │ │ pid = 33094 ║
║ │ │ port = 9900 ║
║words.http-v1-0 │ deployed │ stderr = /var/folders/js/7b_pn0t575l790x7j61slyxc0000gn/T/spring-cloud-deployer-6467595568759190742/words-1542803461054/words.http-v1/stderr_0.log ║
║ │ │ stdout = /var/folders/js/7b_pn0t575l790x7j61slyxc0000gn/T/spring-cloud-deployer-6467595568759190742/words-1542803461054/words.http-v1/stdout_0.log ║
║ │ │ url = https://192.168.0.102:9900 ║
║ │ │working.dir = /var/folders/js/7b_pn0t575l790x7j61slyxc0000gn/T/spring-cloud-deployer-6467595568759190742/words-1542803461054/words.http-v1 ║
╟────────────────────┼───────────┼───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╢
║words.splitter-v1 │ deployed │ 1 ║
╟┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┼┈┈┈┈┈┈┈┈┈┈┈┼┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈╢
║ │ │ guid = 33963 ║
║ │ │ pid = 33093 ║
║ │ │ port = 33963 ║
║words.splitter-v1-0 │ deployed │ stderr = /var/folders/js/7b_pn0t575l790x7j61slyxc0000gn/T/spring-cloud-deployer-6467595568759190742/words-1542803437542/words.splitter-v1/stderr_0.log║
║ │ │ stdout = /var/folders/js/7b_pn0t575l790x7j61slyxc0000gn/T/spring-cloud-deployer-6467595568759190742/words-1542803437542/words.splitter-v1/stdout_0.log║
║ │ │ url = https://192.168.0.102:33963 ║
║ │ │working.dir = /var/folders/js/7b_pn0t575l790x7j61slyxc0000gn/T/spring-cloud-deployer-6467595568759190742/words-1542803437542/words.splitter-v1 ║
╚════════════════════╧═══════════╧═══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╝查看words.log-v1-0日志时，您应该看到以下内容：
2016-06-05 18:35:47.047 INFO 58638 --- [ kafka-binder-] log.sink : How
2016-06-05 18:35:47.066 INFO 58638 --- [ kafka-binder-] log.sink : chuck
2016-06-05 18:35:47.066 INFO 58638 --- [ kafka-binder-] log.sink : chuck查看words.log-v1-1日志时，您应该看到以下内容：
2016-06-05 18:35:47.047 INFO 58639 --- [ kafka-binder-] log.sink : much
2016-06-05 18:35:47.066 INFO 58639 --- [ kafka-binder-] log.sink : wood
2016-06-05 18:35:47.066 INFO 58639 --- [ kafka-binder-] log.sink : would
2016-06-05 18:35:47.066 INFO 58639 --- [ kafka-binder-] log.sink : a
2016-06-05 18:35:47.066 INFO 58639 --- [ kafka-binder-] log.sink : woodchuck
2016-06-05 18:35:47.067 INFO 58639 --- [ kafka-binder-] log.sink : if
2016-06-05 18:35:47.067 INFO 58639 --- [ kafka-binder-] log.sink : a
2016-06-05 18:35:47.067 INFO 58639 --- [ kafka-binder-] log.sink : woodchuck
2016-06-05 18:35:47.067 INFO 58639 --- [ kafka-binder-] log.sink : could
2016-06-05 18:35:47.067 INFO 58639 --- [ kafka-binder-] log.sink : wood此示例显示包含相同单词的有效内容拆分将路由到同一应用程序实例。
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