The test creates up to 200MB of test data and that seems to stress the WT cache when the test is run in repeat mode on Enterprise RHEL 8.0 (inMemory) for the burn-in check.

https://jira.mongodb.org/browse/SERVER-61300 ran into this as well but the fix for that ticket hasn't fully addressed the problem as it's still happening: https://spruce.mongodb.com/task/mongodb_mongo_master_enterprise_rhel_80_64_bit_inmem_required_display_burn_in_tests_patch_2a763ca4ea023341983ca8f5e89fa214a56e331c_61e74f570305b91e5b10596e_22_01_18_23_40_26/execution-tasks?execution=0&sorts=STATUS%3AASC

Affected suites:
aggregation_mongos_passthrough_0_enterprise-rhel-80-64-bit-inmem-required
aggregation_one_shard_sharded_collections_0_enterprise-rhel-80-64-bit-inmem-required

[j0:s0:prim] | 2022-01-19T06:47:56.628+00:00 W STORAGE 6148401 [JournalFlusher] "The JournalFlusher encountered an error attempting to flush data to disk","attr":

{"JournalFlusherError":"ExceededMemoryLimit: -31807: WT_CACHE_FULL: operation would overflow cache"}

[js_test:spill_to_disk] assert: write failed with error: {
[js_test:spill_to_disk] "nInserted" : 0,
[js_test:spill_to_disk] "writeError" :

{ [js_test:spill_to_disk] "code" : 146, [js_test:spill_to_disk] "errmsg" : "WiredTigerIdIndex::_insert: index: _id_; uri: table:index-202--2892005430572051450 -31807: WT_CACHE_FULL: operation would overflow cache" [js_test:spill_to_disk] }

[js_test:spill_to_disk] }
[js_test:spill_to_disk] _getErrorWithCode@src/mongo/shell/utils.js:24:13
[js_test:spill_to_disk] doassert@src/mongo/shell/assert.js:18:14
[js_test:spill_to_disk] assert.writeOK@src/mongo/shell/assert.js:881:13
[js_test:spill_to_disk] _assertCommandWorked@src/mongo/shell/assert.js:722:17
[js_test:spill_to_disk] assert.commandWorked@src/mongo/shell/assert.js:829:16
[js_test:spill_to_disk] @jstests/aggregation/spill_to_disk.js:29:5
[js_test:spill_to_disk] @jstests/aggregation/spill_to_disk.js:14:2
[js_test:spill_to_disk] Error: write failed with error: {
[js_test:spill_to_disk] "nInserted" : 0,
[js_test:spill_to_disk] "writeError" :

{ [js_test:spill_to_disk] "code" : 146, [js_test:spill_to_disk] "errmsg" : "WiredTigerIdIndex::_insert: index: _id_; uri: table:index-202--2892005430572051450 -31807: WT_CACHE_FULL: operation would overflow cache" [js_test:spill_to_disk] }

[js_test:spill_to_disk] } :
[js_test:spill_to_disk] _getErrorWithCode@src/mongo/shell/utils.js:24:13
[js_test:spill_to_disk] doassert@src/mongo/shell/assert.js:18:14
[js_test:spill_to_disk] assert.writeOK@src/mongo/shell/assert.js:881:13
[js_test:spill_to_disk] _assertCommandWorked@src/mongo/shell/assert.js:722:17
[js_test:spill_to_disk] assert.commandWorked@src/mongo/shell/assert.js:829:16
[js_test:spill_to_disk] @jstests/aggregation/spill_to_disk.js:29:5
[js_test:spill_to_disk] @jstests/aggregation/spill_to_disk.js:14:2
[js_test:spill_to_disk] failed to load: jstests/aggregation/spill_to_disk.js