Current implementation of DBCPConnectionPool was attempting to test if connection could be obtained via dataSource.getConnection().
Such call is naturally a blocking call and the duration of the block is dependent on driver implementation. Some drivers (e.g., Phoenix - https://phoenix.apache.org/installation.html)
attempts numerous retries before failing creating a deadlock when attempt was made to disable DBCPConnectionPool which was still being enabled.
This fix removes the connection test from DBCPConnectionPool.onConfigured() operation returning successfully upon creation of DataSource.
For more details see comments in https://issues.apache.org/jira/browse/NIFI-1061
- Refactoring PutHBaseCell to batch Puts by table
- Adding optional Columns property to GetHBase to return only selected column families or columns
- Making GetHBase cluster friendly by storing state in the distributed cache and a local file
- Adding Initial Time Range property to GetHBase
- Adding Filter Expression property and custom validate to prevent using columns and a filter at the same time
- Creating an HBaseClientService controller service to isolate the HBase client and support multiple versions
- Creating appropriate LICENSE/NOTICE files
- Adding @InputRequirement to processors
- Addressing comments from review, moving hbase client services under standard services
- Making sure result of session.penalize() is assinged to FlowFile variable before transferring
- corrected a missed 'final' on org.apache.nifi.processors.aws.AbstractAWSProcessor.relationships
- added protected method org.apache.nifi.processors.aws.AbstractAWSProcessor.getRegion()
- added protected method org.apache.nifi.processors.aws.s3.AbstractS3Processor.getUrlForObject(String, String)
- explicitly set AWS client protocol to HTTPS, and created a static final field with comments if other protocols may be considered
- added a static final field for the UserAgent
Reviewed by Aldrin Piri <aldrin@apache.org>
- Refactored tests - created AbstractS3Test for common utility methods
- Corrected incorrect unit test in TestDeleteS3Object, and adjusted processor documentation to reflect behavior
- moved aws dependency management to root pom
This closes#107
Tested, Reviewed and Amended by Tony Kurc (<tkurc@apache.org>)
- Adding syslog.port to ListenSyslog attributes, logging at warn level when rejecting tcp connections
- Adding @InputRequirement to processors and adding appropriate send and receive provenance events
- Refactoring connection handling on put side, removing number of buffers from properties and basing it off concurrent tasks for the processor.
- Refactoring some of the TCP handling so it keeps reading from a connection until the client closes it
- Adding an error queue
- Adding a sender field on the syslog event to record the system that sent the message
Oleg Zhurakousky
Tony Kurc
Mark Payne
Bryan Bende
Mike Moser
joewitt
Jean-Baptiste Onofré
Venkatesh Sellappa
Andrew Grande
Matt Gilman
Joseph Percivall