- The idea behind NIFI-3356 was to improve the efficiency and throughput of the Provenance Repository, as it is often the bottleneck. While testing the newly designed repository,
a handful of other, fairly minor, changes were made to improve efficiency as well, as these came to light when testing the new repository:
- Use a BufferedOutputStream within StandardProcessSession (via a ClaimCache abstraction) in order to avoid continually writing to FileOutputStream when writing many small FlowFiles
- Updated threading model of MinimalLockingWriteAheadLog - now performs serialization outside of lock and writes to a 'synchronized' OutputStream
- Change minimum scheduling period for components from 30 microseconds to 1 nanosecond. ScheduledExecutor is very inconsistent with timing of task scheduling. With the bored.yield.duration
now present, this value doesn't need to be set to 30 microseconds. This was originally done to avoid processors that had no work from dominating the CPU. However, now that we will yield
when processors have no work, this results in slowing down processors that are able to perform work.
- Allow nifi.properties to specify multiple directories for FlowFile Repository
- If backpressure is engaged while running a batch of sessions, then stop batch processing earlier. This helps FlowFiles to move through the system much more smoothly instead of the
herky-jerky queuing that we previously saw at very high rates of FlowFiles.
- Added NiFi PID to log message when starting nifi. This was simply an update to the log message that provides helpful information.
NIFI-3356: Fixed bug in ContentClaimWriteCache that resulted in data corruption and fixed bug in RepositoryConfiguration that threw exception if cache warm duration was set to empty string
NIFI-3356: Fixed NPE
NIFI-3356: Added debug-level performance monitoring
NIFI-3356: Updates to unit tests that failed after rebasing against master
NIFI-3356: Incorporated PR review feedback
NIFI-3356: Fixed bug where we would delete index directories that are still in use; also added additional debug logging and a simple util class that can be used to textualize provenance event files - useful in debugging
This closes#1493
NIFI-1582 removing the option to use cluster state
NIFI-1582 addressing Oleg's comments
NIFI-1582 No longer forcing numbers as the init value and adding getStateValue() to EL instead of using 'ATTRIBUTE_state'
NIFI-1582 Removing init state value
NIFI-1582 Adding documentation for the changes to Init State value
This closes#319
- Added NodeTypeProvider to expose flowController's isClustered and
isPrimaryNode so that processor can know if it's running on a cluster
and if it's a primary node.
- Added mechanism to simulate clustered or not, and primary or not, for testing
This closes#657
Signed-off-by: jpercivall <joepercivall@yahoo.com>
- Refactoring to allow requests to be replicated from a node to other nodes
- Renaming cluster node connection/read timeout properties.
- Renaming NCM DN to Cluster Coordinator DN.
- Fixing default values in properties.
- Starting to fix Spring context to load correctly in standalone mode.
- Using the cluster protocol to handle connection failures instead of heartbeats.
- Ensured replicate call is returned from ControllerResource.
- Ensure the appropriate classloader when serializing templates.
- Handling when the flow contents are null.
- This closes#488
Removed unused variable in unit test. (+10 squashed commits)
Squashed commits:
[7c5acc1] NIFI-1822 Removed trailing whitespace to conform with checkstyle rules.
[cb108cd] NIFI-1822 Added ASF License to unit test.
[9264428] NIFI-1822 Removed debugging log statements for script engine queue size.
Added unit tests demonstrating pooled execution timing and thread usage.
[bdbc4ba] NIFI-1822 Renamed reference to MockProcessorContext#setNumThreads to setMaxConcurrentTasks after refactor.
[12bbe82] NIFI-1822 Moved unit test to correct directory.
Added test script resource which generates flowfile and updates attribute with current thread.
Added tests for single run, serial run, and pooled run (not complete).
[4c174c8] NIFI-1822 Added debugging messages to script execution.
[8ab0ce5] NIFI-1822 Added for loop to instantiate multiple script engines in queue.
[8c5ba51] NIFI-1822 Added variable max concurrent task field in MockProcessorContext because it was previously hardcoded to 1. Changed setNumThreads to setMaxConcurrentTasks to maintain naming convention.
[fd9120c] NIFI-1822 Added unit test skeleton for pooled script processor execution.
[23e4f68] NIFI-1822: Allow concurrent execution in ExecuteScript
This closes#443.
Signed-off-by: Andy LoPresto <alopresto@apache.org>
Mark Payne
Oleg Zhurakousky
Pierre Villard
jpercivall
joewitt
Bryan Bende
Andre F de Miranda
Toivo Adams
Andy LoPresto
Yolanda M. Davis
Koji Kawamura
Aldrin Piri
Matt Gilman
Matt Burgess
Richard Miskin
Tony Kurc