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Elasticsearch:Comparison of performance test results between an Elasticsearch V6.8 cluster and an Elasticsearch V8.9 cluster

Last Updated:Dec 01, 2023

This topic describes the comparison of performance benchmark test results of an Alibaba Cloud Elasticsearch V8.9.1 cluster and an Alibaba Cloud Elasticsearch V6.8.6 cluster. The test is performed by using the Rally tool provided by open source Elasticsearch.

Configurations

Item

Description

Cluster configurations

  • Version: 8.9.1 and 6.8.6

  • CPU type: Intel

  • Data node specifications: 4 vCPUs and 16 GiB of memory

  • Storage type of data nodes: Enhanced SSD (ESSD)

  • Storage performance level of data nodes: PL1

  • Storage space per data node: 200 GiB

  • Number of data nodes: 3

Rally configurations

Default Rally tracks

Dataset

Built-in dataset http_logs of Rally, with 258,610,096 documents

You can obtain the dataset from Elasticsearch Rally Hub.

Number of shards

  • Primary shards: 6

  • Replica shards: 0

bulk_size

2,000 documents submitted each time

bulk_indexing_clients

10 clients used in parallel

Test results

The test results are for reference only. We recommend that you perform stress testing by using your business production data.

Main metrics

Elasticsearch cluster

Indexing rate

Indexing latency

V8.9.1 cluster

image.png

image.png

V6.8.6 cluster

image.png

image.png

Test report

Baseline refers to the V6.8.6 cluster, and Contender refers to the V8.9.1 cluster. For more information about the metrics in the following table, see Overview.

Metric

Task

Baseline

Contender

Diff

Unit

Diff %

Cumulative indexing time of primary shards

-

195.859

129.703

-66.1556

min

-33.78%

Min cumulative indexing time across primary shard

-

8.33E-05

0

-8.00E-05

min

-100.00%

Median cumulative indexing time across primary shard

-

1.42498

0.857517

-0.56747

min

-39.82%

Max cumulative indexing time across primary shard

-

26.5076

16.5645

-9.94305

min

-37.51%

Cumulative indexing throttle time of primary shards

-

0

0

0

min

0.00%

Min cumulative indexing throttle time across primary shard

-

0

0

0

min

0.00%

Median cumulative indexing throttle time across primary shard

-

0

0

0

min

0.00%

Max cumulative indexing throttle time across primary shard

-

0

0

0

min

0.00%

Cumulative merge time of primary shards

-

119.628

50.4829

-69.1454

min

-57.80%

Cumulative merge count of primary shards

-

1562

601

-961

-

-61.52%

Min cumulative merge time across primary shard

-

0

0

0

min

0.00%

Median cumulative merge time across primary shard

-

0.146967

0.081167

-0.0658

min

-44.77%

Max cumulative merge time across primary shard

-

19.4382

9.88038

-9.55778

min

-49.17%

Cumulative merge throttle time of primary shards

-

80.369

15.6503

-64.7187

min

-80.53%

Min cumulative merge throttle time across primary shard

-

0

0

0

min

0.00%

Median cumulative merge throttle time across primary shard

-

0.036

0

-0.036

min

-100.00%

Max cumulative merge throttle time across primary shard

-

13.8056

4.30382

-9.50173

min

-68.83%

Cumulative refresh time of primary shards

-

12.5059

17.8214

5.31553

min

42.50%

Cumulative refresh count of primary shards

-

13293

6140

-7153

-

-53.81%

Min cumulative refresh time across primary shard

-

0.00025

0

-0.00025

min

-100.00%

Median cumulative refresh time across primary shard

-

0.086067

0.119483

0.03342

min

38.83%

Max cumulative refresh time across primary shard

-

1.50832

2.15253

0.64422

min

42.71%

Cumulative flush time of primary shards

-

1.24528

3.80468

2.5594

min

205.53%

Cumulative flush count of primary shards

-

129

817

688

-

533.33%

Min cumulative flush time across primary shard

-

0

3.33E-05

3.00E-05

min

0.00%

Median cumulative flush time across primary shard

-

0.000567

0.016117

0.01555

min

2744.12%

Max cumulative flush time across primary shard

-

0.220317

0.5159

0.29558

min

134.16%

Total Young Gen GC time

-

71.731

17.58

-54.151

s

-75.49%

Total Young Gen GC count

-

2609

922

-1687

-

-64.66%

Total Old Gen GC time

-

0

0

0

s

0.00%

Total Old Gen GC count

-

0

0

0

-

0.00%

Store size

-

20.5377

18.1059

-2.43177

GB

-11.84%

Translog size

-

15.5092

0.000209

-15.509

GB

-100.00%

Heap used for segments

-

96.9595

0

-96.9595

MB

-100.00%

Heap used for doc values

-

0.143082

0

-0.14308

MB

-100.00%

Heap used for terms

-

83.811

0

-83.811

MB

-100.00%

Heap used for norms

-

0.041382

0

-0.04138

MB

-100.00%

Heap used for points

-

5.80011

0

-5.80011

MB

-100.00%

Heap used for stored fields

-

7.16398

0

-7.16398

MB

-100.00%

Segment count

-

688

56

-632

-

-91.86%

Total Ingest Pipeline count

-

0

0

0

-

0.00%

Total Ingest Pipeline time

-

0

0

0

ms

0.00%

Total Ingest Pipeline failed

-

0

0

0

-

0.00%

Min Throughput

index-append

144562

207170

62608.3

docs/s

43.31%

Mean Throughput

index-append

150015

219531

69516.8

docs/s

46.34%

Median Throughput

index-append

148913

217484

68571.1

docs/s

46.05%

Max Throughput

index-append

155476

238529

83052.4

docs/s

53.42%

50th percentile latency

index-append

118.389

80.1159

-38.2727

ms

-32.33%

90th percentile latency

index-append

181.669

123.321

-58.3479

ms

-32.12%

99th percentile latency

index-append

595.738

394.778

-200.96

ms

-33.73%

99.9th percentile latency

index-append

924.456

2125.09

1200.63

ms

129.87%

99.99th percentile latency

index-append

1329.83

2816.56

1486.73

ms

111.80%

100th percentile latency

index-append

2490.11

3341.14

851.03

ms

34.18%

50th percentile service time

index-append

118.389

80.1159

-38.2727

ms

-32.33%

90th percentile service time

index-append

181.669

123.321

-58.3479

ms

-32.12%

99th percentile service time

index-append

595.738

394.778

-200.96

ms

-33.73%

99.9th percentile service time

index-append

924.456

2125.09

1200.63

ms

129.87%

99.99th percentile service time

index-append

1329.83

2816.56

1486.73

ms

111.80%

100th percentile service time

index-append

2490.11

3341.14

851.03

ms

34.18%

error rate

index-append

0

0

0

%

0.00%

Min Throughput

default

7.95637

19.9543

11.9979

ops/s

150.80%

Mean Throughput

default

7.96001

19.9645

12.0045

ops/s

150.81%

Median Throughput

default

7.96018

19.9661

12.0059

ops/s

150.82%

Max Throughput

default

7.96335

19.9692

12.0058

ops/s

150.76%

50th percentile latency

default

90.2508

6.14099

-84.1098

ms

-93.20%

90th percentile latency

default

104.465

7.43625

-97.0288

ms

-92.88%

99th percentile latency

default

120.173

35.009

-85.1635

ms

-70.87%

100th percentile latency

default

122.049

73.9764

-48.0721

ms

-39.39%

50th percentile service time

default

88.8955

4.93161

-83.9639

ms

-94.45%

90th percentile service time

default

103.013

6.18375

-96.8297

ms

-94.00%

99th percentile service time

default

117.761

25.6137

-92.1469

ms

-78.25%

100th percentile service time

default

121.368

73.0867

-48.2812

ms

-39.78%

error rate

default

0

0

0

%

0.00%

Min Throughput

term

49.547

42.1405

-7.40655

ops/s

-14.95%

Mean Throughput

term

49.5671

42.4414

-7.12567

ops/s

-14.38%

Median Throughput

term

49.5671

42.4414

-7.12567

ops/s

-14.38%

Max Throughput

term

49.5872

42.7424

-6.84478

ops/s

-13.80%

50th percentile latency

term

10.1058

8.54857

-1.55724

ms

-15.41%

90th percentile latency

term

11.9156

10.4358

-1.47983

ms

-12.42%

99th percentile latency

term

34.4109

12.6224

-21.7885

ms

-63.32%

100th percentile latency

term

43.6123

22.1556

-21.4567

ms

-49.20%

50th percentile service time

term

9.07766

7.13231

-1.94535

ms

-21.43%

90th percentile service time

term

10.1664

8.7835

-1.38285

ms

-13.60%

99th percentile service time

term

19.2223

11.7613

-7.46097

ms

-38.81%

100th percentile service time

term

42.2021

20.9707

-21.2314

ms

-50.31%

error rate

term

0

0

0

%

0.00%

Min Throughput

range

1.00138

24.8781

23.8768

ops/s

2384.39%

Mean Throughput

range

1.00191

24.9019

23.9

ops/s

2385.45%

Median Throughput

range

1.00184

24.9036

23.9018

ops/s

2385.79%

Max Throughput

range

1.00273

24.9222

23.9194

ops/s

2385.42%

50th percentile latency

range

461.013

8.53625

-452.477

ms

-98.15%

90th percentile latency

range

484.002

10.119

-473.883

ms

-97.91%

99th percentile latency

range

570.831

87.6618

-483.169

ms

-84.64%

100th percentile latency

range

575.619

111.375

-464.244

ms

-80.65%

50th percentile service time

range

459.381

7.46765

-451.914

ms

-98.37%

90th percentile service time

range

482.296

9.07516

-473.221

ms

-98.12%

99th percentile service time

range

568.99

29.1409

-539.849

ms

-94.88%

100th percentile service time

range

574.188

110.444

-463.744

ms

-80.77%

error rate

range

0

0

0

%

0.00%

Min Throughput

hourly_agg

0.200542

0.200569

3.00E-05

ops/s

0.01%

Mean Throughput

hourly_agg

0.20075

0.200786

4.00E-05

ops/s

0.02%

Median Throughput

hourly_agg

0.200721

0.200756

3.00E-05

ops/s

0.02%

Max Throughput

hourly_agg

0.201076

0.201128

5.00E-05

ops/s

0.03%

50th percentile latency

hourly_agg

1763.18

1924.92

161.747

ms

9.17%

90th percentile latency

hourly_agg

1851.01

2009.28

158.272

ms

8.55%

99th percentile latency

hourly_agg

2020.41

2118.9

98.4938

ms

4.87%

100th percentile latency

hourly_agg

2021.06

2302.15

281.092

ms

13.91%

50th percentile service time

hourly_agg

1760.45

1921.89

161.444

ms

9.17%

90th percentile service time

hourly_agg

1848.91

2007.78

158.876

ms

8.59%

99th percentile service time

hourly_agg

2019.07

2116.37

97.3059

ms

4.82%

100th percentile service time

hourly_agg

2019.19

2300.89

281.704

ms

13.95%

error rate

hourly_agg

0

0

0

%

0.00%

Min Throughput

scroll

24.9909

25.0461

0.05527

pages/s

0.22%

Mean Throughput

scroll

24.995

25.076

0.08104

pages/s

0.32%

Median Throughput

scroll

24.9954

25.0691

0.07377

pages/s

0.30%

Max Throughput

scroll

24.997

25.1378

0.14077

pages/s

0.56%

50th percentile latency

scroll

482.33

355.086

-127.245

ms

-26.38%

90th percentile latency

scroll

506.714

373.589

-133.125

ms

-26.27%

99th percentile latency

scroll

570.072

407.765

-162.306

ms

-28.47%

100th percentile latency

scroll

662.62

443.031

-219.589

ms

-33.14%

50th percentile service time

scroll

480.324

353.174

-127.15

ms

-26.47%

90th percentile service time

scroll

505.168

371.193

-133.975

ms

-26.52%

99th percentile service time

scroll

567.947

405.43

-162.517

ms

-28.61%

100th percentile service time

scroll

660.957

440.533

-220.424

ms

-33.35%

error rate

scroll

0

0

0

%

0.00%