Attila Doroszlai created HDDS-2330:
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Summary: Random key generator can get stuck
Key: HDDS-2330
URL: https://issues.apache.org/jira/browse/HDDS-2330
Project: Hadoop Distributed Data Store
Issue Type: Bug
Components: freon
Reporter: Attila Doroszlai
Assignee: Attila Doroszlai
Freon's random key generator can get stuck waiting for completion (without any
hint to what's happening) if object creation encounters any non-IOException.
Steps to reproduce:
# Start Ozone cluster with 1 datanode
# Start Freon (5K keys of size 1MB)
Result: after a few hundred keys progress stops.
{noformat}
$ docker-compose exec scm ozone freon rk --numOfThreads 1 --numOfVolumes 1
--numOfBuckets 1 --replicationType RATIS --factor ONE --keySize $(echo '2^20' |
bc -lq) --numOfKeys $(echo '5 * 2^10' | bc -lq) --bufferSize $(echo '2^16' | bc
-lq)
2019-10-18 10:44:45,224 INFO impl.MetricsConfig: Loaded properties from
hadoop-metrics2.properties
2019-10-18 10:44:45,381 INFO impl.MetricsSystemImpl: Scheduled Metric snapshot
period at 10 second(s).
2019-10-18 10:44:45,381 INFO impl.MetricsSystemImpl: ozone-freon metrics system
started
2019-10-18 10:44:47,140 [main] INFO - Number of Threads: 1
2019-10-18 10:44:47,145 [main] INFO - Number of Volumes: 1.
2019-10-18 10:44:47,146 [main] INFO - Number of Buckets per Volume: 1.
2019-10-18 10:44:47,146 [main] INFO - Number of Keys per Bucket: 5120.
2019-10-18 10:44:47,147 [main] INFO - Key size: 1048576 bytes
2019-10-18 10:44:47,147 [main] INFO - Buffer size: 65536 bytes
2019-10-18 10:44:47,147 [main] INFO - validateWrites : false
2019-10-18 10:44:47,151 [main] INFO - Starting progress bar Thread.
...
7.07% |????????
| 362/5120
{noformat}
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