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Overview
As was mentioned in Jira - there is huge performance degradation between releases iris - juniper. According to Jira - previously harvesting process of 350K records takes ±2 hour and now on Juniper release it takes 4 hours.
Test flow
Test consist of few calls:
Initial call:
- /oai/records?verb=ListRecords&metadataPrefix=marc21_withholdings&apikey=[APIKey] - performing only once
Harvesting call:
- /oai/records?verb=ListRecords&apikey=[APIKey]&resumptionToken=[resumptionToken] - performing repeatedly until there is no more data in [tenant]_mod_oai_pmh.instances table to harvest.
[resumptionToken] returning in initial call response and in each harvesting call until there is no more records to harvest. When all data has being harvested - resumptionToken will not return with hte response.
Environments to test on:
- ICP1 - Iris release;
- JCP1 - Juniper release;
- IMTC1 - Latest Juniper release (and more powerful environment).
Software versions
| IMTC1 (Juniper) | JCP1 (Juniper) | ICP1 (Iris) |
|---|---|---|
| mod-oai-pmh:3.5.0 | mod-oai-pmh:3.5.0 | mod-oai-pmh:3.4.2 |
| edge-oai-pmh:2.3.1 | edge-oai-pmh:2.3.1 | edge-oai-pmh:2.3.1 |
mod-source-record-storage:5.1.5 | mod-source-record-storage:5.1.6 | mod-source-record-storage:5.0.6 |
| mod-source-record-manager:3.1.3 | mod-source-record-manager:3.1.3 | mod-source-record-manager:3.0.9 |
| mod-inventory-storage:21.0.3 | mod-inventory-storage:21.0.3 | mod-inventory-storage:20.2.2 |
| okapi:4.8.2 | okapi:4.8.2 | okapi:4.7.3 |
Test results
Harvesting of 350K records.
| IMTC1 (Juniper) | JCP1 (Juniper) | ICP1 (Iris) |
|---|---|---|
| 1 hr 14 min | 45 min | 1 hr 47 min |
| 1 hr 10 min | 42 min | 1 hr 26 min |
| env | IMTC1 (Juniper) | JCP1 (Juniper) | ICP1 (Iris) |
|---|---|---|---|
| instances | 756417 | 7252127 | 8072048 |
| SRS records | 597223 | 710371 | 1186613 |
Conclusions:
- As you can see from table above - we can say that Juniper release at least not slower than Iris release, or even faster.
- We can see slowness on IMTC1 env (it should be more powerful than others). However it's still better or the same as ICP1 (Iris).
- The only difference between IMTC1 and JCP1 is state of DB (different data set may affect the performance).
- We'll need additional tests on same data set but on different releases.
Resource usage
IMTC
JCP1
ICP1
