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https://issues.apache.org/jira/browse/HDDS-9840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17807553#comment-17807553
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Wei-Chiu Chuang commented on HDDS-9840:
---------------------------------------
According to HDDS-9752 this one will be addressed once HDDS-9752 is merged,
which we are working on it (there's a PR outstanding) So I think other than
that we just need to verify it works as expected.
> ozone freon dfsg takes very long time when HSYNC is enabled
> -----------------------------------------------------------
>
> Key: HDDS-9840
> URL: https://issues.apache.org/jira/browse/HDDS-9840
> Project: Apache Ozone
> Issue Type: Bug
> Components: Ozone CLI
> Reporter: Pratyush Bhatt
> Assignee: Ashish Kumar
> Priority: Major
>
> The command generates 1 100MB file in about 3 seconds when HSYNC is not
> passed.
> {code:java}
> ozone freon dfsg --buffer=1024 --copy-buffer=1024 -n 1 --path
> ofs://ozone1701449533/vol2/bucket2/dfsg -s 102400000 -t 32 -p nonsync
> 23/12/05 11:11:29 WARN impl.MetricsConfig: Cannot locate configuration: tried
> hadoop-metrics2-ozone-freon.properties,hadoop-metrics2.properties
> 23/12/05 11:11:29 INFO impl.MetricsSystemImpl: Scheduled Metric snapshot
> period at 10 second(s).
> 23/12/05 11:11:29 INFO impl.MetricsSystemImpl: ozone-freon metrics system
> started
> 23/12/05 11:11:29 INFO freon.BaseFreonGenerator: Executing test with prefix
> nonsync and number-of-tests 1 0.00% |?
> | 0/1 Time:
> 0:00:00| Disabling FS cache: fs.ofs.impl.disable.cache
> 0.00% |?
> | 0/1 Time: 0:00:01| 23/12/05 11:11:30 INFO
> rpc.RpcClient: Creating Bucket: vol2/bucket2, with bucket layout
> FILE_SYSTEM_OPTIMIZED, om as owner, Versioning false, Storage Type set to
> DISK and Encryption set to false, Replication Type set to server-side default
> replication type, Namespace Quota set to -1, Space Quota set to -1
> 23/12/05 11:11:31 WARN impl.MetricsSystemImpl: ozone-freon metrics system
> already initialized!
> 23/12/05 11:11:31 INFO metrics.MetricRegistries: Loaded MetricRegistries
> class org.apache.ratis.metrics.impl.MetricRegistriesImpl
> 0.00% |?
> | 0/1 Time: 0:00:02|
> 12/5/23 11:11:33 AM
> ============================================================-- Timers
> ----------------------------------------------------------------------
> file-create
> count = 1
> mean rate = 0.46 calls/second
> 1-minute rate = 0.00 calls/second
> 5-minute rate = 0.00 calls/second
> 15-minute rate = 0.00 calls/second
> min = 2018.26 milliseconds
> max = 2018.26 milliseconds
> mean = 2018.26 milliseconds
> stddev = 0.00 milliseconds
> median = 2018.26 milliseconds
> 75% <= 2018.26 milliseconds
> 95% <= 2018.26 milliseconds
> 98% <= 2018.26 milliseconds
> 99% <= 2018.26 milliseconds
> 99.9% <= 2018.26 milliseconds
> Total execution time (sec): 3
> Failures: 0
> Successful executions: 1 {code}
> But when HSYNC flag is passed, the same command takes 161 seconds even for a
> single 1MB file.
> {code:java}
> ozone freon dfsg --buffer=1024 --copy-buffer=1024 -n 1 --path
> ofs://ozone1701449533/vol3/bucket3/dfsg -s 1024000 -t 32 --sync HSYNC -p sync2
> 23/12/05 11:17:50 WARN impl.MetricsConfig: Cannot locate configuration: tried
> hadoop-metrics2-ozone-freon.properties,hadoop-metrics2.properties
> 23/12/05 11:17:50 INFO impl.MetricsSystemImpl: Scheduled Metric snapshot
> period at 10 second(s).
> 23/12/05 11:17:50 INFO impl.MetricsSystemImpl: ozone-freon metrics system
> started
> 23/12/05 11:17:50 INFO freon.BaseFreonGenerator: Executing test with prefix
> sync2 and number-of-tests 1
> 0.00% |?
> | 0/1 Time: 0:00:00| Disabling FS cache:
> fs.ofs.impl.disable.cache
> 0.00% |?
> | 0/1 Time: 0:00:01| 23/12/05 11:17:51 WARN
> impl.MetricsSystemImpl: ozone-freon metrics system already initialized!
> 23/12/05 11:17:51 INFO metrics.MetricRegistries: Loaded MetricRegistries
> class org.apache.ratis.metrics.impl.MetricRegistriesImpl
> 0.00% |?
> | 0/1 Time: 0:00:02|
> 12/5/23 11:20:31 AM
> ============================================================
> -- Timers
> ----------------------------------------------------------------------
> file-create
> count = 1
> mean rate = 0.01 calls/second
> 1-minute rate = 0.00 calls/second
> 5-minute rate = 0.00 calls/second
> 15-minute rate = 0.00 calls/second
> min = 160038.05 milliseconds
> max = 160038.05 milliseconds
> mean = 160038.05 milliseconds
> stddev = 0.00 milliseconds
> median = 160038.05 milliseconds
> 75% <= 160038.05 milliseconds
> 95% <= 160038.05 milliseconds
> 98% <= 160038.05 milliseconds
> 99% <= 160038.05 milliseconds
> 99.9% <= 160038.05 milliseconds
> Total execution time (sec): 161
> Failures: 0
> Successful executions: 1ozone freon dfsg --buffer=1024 --copy-buffer=1024 -n
> 1 --path ofs://ozone1701449533/vol3/bucket3/dfsg -s 1024000 -t 32 --sync
> HSYNC -p sync2
> 23/12/05 11:17:50 WARN impl.MetricsConfig: Cannot locate configuration: tried
> hadoop-metrics2-ozone-freon.properties,hadoop-metrics2.properties
> 23/12/05 11:17:50 INFO impl.MetricsSystemImpl: Scheduled Metric snapshot
> period at 10 second(s).
> 23/12/05 11:17:50 INFO impl.MetricsSystemImpl: ozone-freon metrics system
> started
> 23/12/05 11:17:50 INFO freon.BaseFreonGenerator: Executing test with prefix
> sync2 and number-of-tests 1 0.00% |?
> | 0/1 Time:
> 0:00:00| Disabling FS cache: fs.ofs.impl.disable.cache
> 0.00% |?
> | 0/1 Time: 0:00:01| 23/12/05 11:17:51 WARN
> impl.MetricsSystemImpl: ozone-freon metrics system already initialized!
> 23/12/05 11:17:51 INFO metrics.MetricRegistries: Loaded MetricRegistries
> class org.apache.ratis.metrics.impl.MetricRegistriesImpl
> 0.00% |?
> | 0/1 Time: 0:00:02|
> 12/5/23 11:20:31 AM
> ============================================================-- Timers
> ----------------------------------------------------------------------
> file-create
> count = 1
> mean rate = 0.01 calls/second
> 1-minute rate = 0.00 calls/second
> 5-minute rate = 0.00 calls/second
> 15-minute rate = 0.00 calls/second
> min = 160038.05 milliseconds
> max = 160038.05 milliseconds
> mean = 160038.05 milliseconds
> stddev = 0.00 milliseconds
> median = 160038.05 milliseconds
> 75% <= 160038.05 milliseconds
> 95% <= 160038.05 milliseconds
> 98% <= 160038.05 milliseconds
> 99% <= 160038.05 milliseconds
> 99.9% <= 160038.05 milliseconds
> Total execution time (sec): 161
> Failures: 0
> Successful executions: 1{code}
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