HDDS-15579. Replace SimpleSpanProcessor with BatchSpanProcessor

[sravani-revuri]

What changes were proposed in this pull request?

while running tracing while creating 100000 keys.
with tracing enabled it currently takes around 25-30 min but with it off it takes around 1-2 min.
currently we are using simplespanprocessor which works synchronously for spans being exported , therefore taking so long.

We should change usage to batchspanprocessor which does the same thing asynchronously

What is the link to the Apache JIRA

https://issues.apache.org/jira/browse/HDDS-15579

How was this patch tested?

Manual test.

Command:

bash-5.1$ ozone freon rk --num-of-volumes 1 --num-of-buckets 1 --num-of-keys 100000 --num-of-threads 24 --key-size 1KB

BEFORE:

***************************************************
Status: Success
Git Base Revision: 9d50c6884666e794e45102260a4017bb31802e1b
Number of Volumes created: 1
Number of Buckets created: 1
Number of Keys added: 100000
Average Time spent in volume creation: 00:00:00,002
Average Time spent in bucket creation: 00:00:00,000
Average Time spent in key creation: 00:07:39,104
Average Time spent in key write: 00:00:00,298
Total bytes written: 102400000
Total Execution time: 00:36:29,767
***************************************************

AFTER:

***************************************************
Status: Success
Git Base Revision: 9d50c6884666e794e45102260a4017bb31802e1b
Number of Volumes created: 1
Number of Buckets created: 1
Number of Keys added: 100000
Average Time spent in volume creation: 00:00:00,001
Average Time spent in bucket creation: 00:00:00,000
Average Time spent in key creation: 00:00:11,312
Average Time spent in key write: 00:00:00,216
Total bytes written: 102400000
Total Execution time: 00:00:57,661
***************************************************

[sravani-revuri]

@sumitagrawl , could you please review these changes.

[adoroszlai]

@sumitagrawl please take a look

[sarvekshayr]

Thanks @sravani-revuri for the improvement.