Member since
07-30-2019
333
Posts
356
Kudos Received
76
Solutions
My Accepted Solutions
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1202 | 12-16-2016 01:21 PM |
12-14-2015
08:42 PM
1 Kudo
If you ever need to connect to a SSL-enabled service, set up a standard ssl context service in NiFi. This will act as a centralized reusable service (you can have multiple). All components which can leverage it will have a prompt in Properties field to either jump to or create one. Read more info here as well: https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi.ssl.StandardSSLContextService/index.html
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12-12-2015
07:48 AM
1 Kudo
Great content. For developer productivity we should ask @dkumar@hortonworks.com to share the in-memory dev stack of ZK, Kafka, Storm, the one they are using in the labs and training.
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12-11-2015
03:14 PM
1 Kudo
You should add a details panel which lists tabular data. This widget then has an Export/Save action.
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12-03-2015
02:50 PM
Quite often people are actually looking for tailing a file line-by-line. For those cases, a new TailFile processor in NiFi 0.4.0 works better, and it also includes advanced features like detecting (avoiding) duplicate entries on restart, understands log file rolling patterns (so it's not just reading from an active log file, but can also start from the beginning of time), etc.
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12-01-2015
10:26 PM
No, this is not supported.
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11-26-2015
05:11 PM
2 Kudos
While I won't provide exact numbers here, would still like to draw your attention to a few major considerations for hdfs backed indexes. The goals here are: Scalability of storage. Local disk performance doesn't matter when your disk is full Portability of nodes. As long as the node can access the index, it doesn't matter where they areally Reliability of storage. Hdfs replication, auto healing etc.
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11-22-2015
11:37 PM
Thanks @mpayne , this worked quite well for Started and Stopped events. I had a question on DIED notification, however. What logic does it use to detect this event? E.g. if I killed a child NiFi process, the bootstrap log simply has 'NiFi never started entry added', whereas I expected something else.
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11-21-2015
11:27 PM
What is the best way to execute a one-time action during a NiFi startup? E.g. call home and report the (floating) IP address of the instance, or update a registry, etc. Contrary to a reporting task, the idea is to fire once, not be running continuously while NiFi is up and have no requirement to be configured by a user explicitly (other than an admin deploying the code).
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Apache NiFi
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Cloudera DataFlow (CDF)
11-21-2015
11:18 PM
Yes, work is underway to support multiple scripting languages through a standard JVM scripting APIs. Hot-reloading is in scope as well. Currently the jiras are being organized, as multiple approaches and ideas got filed, stay tuned.
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11-20-2015
12:57 PM
1 Kudo
Wes, this is supported. As @Scott Shaw mentioned, may not always be the easiest choice for operators, but if they are asking such a question, usually it just has to be done.
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