Member since
09-29-2015
63
Posts
19
Kudos Received
8
Solutions
My Accepted Solutions
Title | Views | Posted |
---|---|---|
1607 | 09-30-2017 06:13 AM | |
1281 | 06-09-2017 02:31 AM | |
4951 | 03-15-2017 04:04 PM | |
4851 | 03-15-2017 08:37 AM | |
1331 | 12-11-2016 01:15 PM |
05-05-2017
04:51 PM
1 Kudo
We have a use case to use "InvokeHttp" for restful service, getting all the details from the DB (URL/username/password), need to pass basic authentication (username and password) via attributes retrieved from DB. Is it possible to pass authentication using attributes ?
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Apache NiFi
03-15-2017
04:04 PM
Deleted the journal folder and restarted Nifi did solve the issue. Not sure what caused the issue in the first place.
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03-15-2017
08:51 AM
Is there a way to clean up flow files and keep only the attributes after event processing is completed. Need to remove Flow files for security reasons. Any suggestions if we can delete or any other way of handling the above use case.
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Apache NiFi
03-15-2017
08:47 AM
Hello, Apache Nifi doesn't show data Provenance and show status as "Searching provenance events", checked logs it shows the following error. Any suggestions to resolve the same. 2017-03-15 08:40:06,603 ERROR [Provenance Repository Rollover Thread-2] o.a.n.p.PersistentProvenanceRepository Failed to merge journals. Will try again. journalsToMerge: [./provenance_repository/journals/2642.journal.0, ./provenance_repository/journals/2642.journal.1, ./provenance_repository/journals/2642.journal.2, ./provenance_repository/journals/2642.journal.3, ./provenance_repository/journals/2642.journal.4, ./provenance_repository/journals/2642.journal.5, ./provenance_repository/journals/2642.journal.6, ./provenance_repository/journals/2642.journal.7, ./provenance_repository/journals/2642.journal.8, ./provenance_repository/journals/2642.journal.9, ./provenance_repository/journals/2642.journal.10, ./provenance_repository/journals/2642.journal.11, ./provenance_repository/journals/2642.journal.12, ./provenance_repository/journals/2642.journal.13, ./provenance_repository/journals/2642.journal.14, ./provenance_repository/journals/2642.journal.15], storageDir: ./provenance_repository, cause: java.lang.RuntimeException: java.io.FileNotFoundException: _1g.fdt 2017-03-15 08:40:06,607 ERROR [Provenance Repository Rollover Thread-2] o.a.n.p.PersistentProvenanceRepository java.lang.RuntimeException: java.io.FileNotFoundException: _1g.fdt at org.apache.lucene.index.TieredMergePolicy$SegmentByteSizeDescending.compare(TieredMergePolicy.java:258) ~[na:na] at org.apache.lucene.index.TieredMergePolicy$SegmentByteSizeDescending.compare(TieredMergePolicy.java:238) ~[na:na] at java.util.TimSort.countRunAndMakeAscending(TimSort.java:355) ~[na:1.8.0_101] at java.util.TimSort.sort(TimSort.java:234) ~[na:1.8.0_101] at java.util.Arrays.sort(Arrays.java:1512) ~[na:1.8.0_101] at java.util.ArrayList.sort(ArrayList.java:1454) ~[na:1.8.0_101] at java.util.Collections.sort(Collections.java:175) ~[na:1.8.0_101] at org.apache.lucene.index.TieredMergePolicy.findMerges(TieredMergePolicy.java:292) ~[na:na] at org.apache.lucene.index.IndexWriter.updatePendingMerges(IndexWriter.java:2020) ~[na:na] at org.apache.lucene.index.IndexWriter.maybeMerge(IndexWriter.java:1984) ~[na:na] at org.apache.lucene.index.IndexWriter.prepareCommitInternal(IndexWriter.java:3029) ~[na:na] at org.apache.lucene.index.IndexWriter.commitInternal(IndexWriter.java:3134) ~[na:na] at org.apache.lucene.index.IndexWriter.commit(IndexWriter.java:3101) ~[na:na] at org.apache.nifi.provenance.lucene.SimpleIndexManager.returnIndexWriter(SimpleIndexManager.java:162) ~[na:na] at org.apache.nifi.provenance.PersistentProvenanceRepository.mergeJournals(PersistentProvenanceRepository.java:1864) ~[na:na] at org.apache.nifi.provenance.PersistentProvenanceRepository$8.run(PersistentProvenanceRepository.java:1332) ~[na:na] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_101] at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) [na:1.8.0_101] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_101] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) [na:1.8.0_101] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_101] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_101] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_101] Caused by: java.io.FileNotFoundException: _1g.fdt at org.apache.lucene.store.FSDirectory.fileLength(FSDirectory.java:255) ~[na:na] at org.apache.lucene.index.SegmentCommitInfo.sizeInBytes(SegmentCommitInfo.java:219) ~[na:na] at org.apache.lucene.index.MergePolicy.size(MergePolicy.java:478) ~[na:na] at org.apache.lucene.index.TieredMergePolicy$SegmentByteSizeDescending.compare(TieredMergePolicy.java:248) ~[na:na] ... 22 common frames omitted Thanks, Nagesh
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Apache NiFi
03-15-2017
08:37 AM
1 Kudo
@Prakhar Agrawal There doesn't seems to be an out of box support for xls files. Although you can use something custom for parsing xls files. One of the examples: https://community.hortonworks.com/questions/36875/where-to-convert-xls-file-to-csv-file-inside-nifi.html
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03-06-2017
06:14 AM
Hello, We are trying to read data from Oracle tables, "Date" based data types are converted into "Timestamp" Data types. e.g: Table is Oracle. desc hr.employees; Name Null? Type ----------------------------------------- -------- ---------------------------- EMPLOYEE_ID NOT NULL NUMBER(6) FIRST_NAME VARCHAR2(20) LAST_NAME NOT NULL VARCHAR2(25) EMAIL NOT NULL VARCHAR2(25) PHONE_NUMBER VARCHAR2(20) HIRE_DATE NOT NULL DATE JOB_ID NOT NULL VARCHAR2(10) SALARY NUMBER(8,2) COMMISSION_PCT NUMBER(2,2) MANAGER_ID NUMBER(6) DEPARTMENT_ID NUMBER(4) SSN VARCHAR2(55) and schema read in the DataFrame in Scala |-- EMPLOYEE_ID: decimal(6,0) (nullable = false) |-- FIRST_NAME: string (nullable = true) |-- LAST_NAME: string (nullable = false) |-- EMAIL: string (nullable = false) |-- PHONE_NUMBER: string (nullable = true) |-- HIRE_DATE: timestamp (nullable = false) (Incorrect data type read here) |-- JOB_ID: string (nullable = false) |-- SALARY: decimal(8,2) (nullable = true) |-- COMMISSION_PCT: decimal(2,2) (nullable = true) |-- MANAGER_ID: decimal(6,0) (nullable = true) |-- DEPARTMENT_ID: decimal(4,0) (nullable = true) |-- SSN: string (nullable = true) Hire_Date is read incorrectly as TimeStamp, is there a way to correct. Data is being read from Oracle on the fly and the application does not have an upfront knowledge of datatypes and can't convert it after being read. Thanks in advance. Nagesh
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Apache Spark
03-01-2017
03:41 AM
@Artem Ervits thanks for quick response, we are using these, but we would like to restrict users from creating new notebooks, which is not part of the documentation.
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03-01-2017
03:22 AM
1 Kudo
Hello, We have an requirement were in we want zeppelin to be used only for reporting for users, is there an configuration setting by which I can disable from creating new notebooks ?
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Apache Zeppelin
12-22-2016
02:40 AM
@Roger Young Assuming you are using a file on the file system you should be doing the following. you could use "split text processor" after fetcing the file, to split into single lines and then process as needed further as needed.
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12-21-2016
11:25 AM
1 Kudo
@Roger Young since your csv seems to be of fixed columns, you can use an combination of Replace and Extract text. You can use one the example template here which converts csv to json, the first step is what you need. https://cwiki.apache.org/confluence/download/attachments/57904847/CsvToJSON.xml?version=1&modificationDate=1442927496000&api=v2 https://cwiki.apache.org/confluence/display/NIFI/Example+Dataflow+Templates
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