Truncated query during batching

[dmitrii-ubskii]

Description

Occasionally, a query seemingly gets truncated, which means it fails to parse on the server side. This seems to only happen during high volume loading.

Environment

1. TypeDB distribution: Core
2. TypeDB version: 3.5.0
3. Environment: Ubuntu Linux 24.04.2 LTS
4. Studio version: N/A
5. Other details: Python driver 3.5.0

Reproducible Steps

1. Set up

Clone typedb/typedb-benchmark, update typedb3 config to use 3.5.0 for server and driver, then run setup.

2. Execute

Execute TPC-C: scalefactor = 1, warehouses = 4000, clients = 16.

3. Unexpected result

2025-09-22 10:20:27,218 [loaderFunc:142] WARNING: Failed to load data:
[TQL0] [TQL03] TypeQL Error: There is a syntax error
parsing error: expected comparator, expression_base, or var
Near 13:34:

    match
    $d isa DISTRICT, has D_ID 31;
    insert
    $customer links (district: $d), isa CUSTOMER,
    has C_ID 93030,
    has C_FIRST "symyliejtq", has C_MIDDLE "OE", has C_LAST "BARABLEEING",
    has C_STREET_1 "eqnrbbcpisqrc", has C_STREET_2 "zzmsbgxddlfdzw",
    has C_CITY "wniaithhnkkk", has C_STATE "nw", has C_ZIP "556111111",
    has C_PHONE "2113993496672931", has C_SINCE 2025-09-22T10:20:26.016, has C_CREDIT "GC",
    has C_CREDIT_LIM 50000.0, has C_DISCOUNT 0.3623,
    has C_BALANCE -10.0, has C_YTD_PAYMENT 10.0,
--> has C_PAYMENT_CNT 1, has C_DELIVER
                                      ^
Caused: Error in usage of TypeQL.
Caused: [TSV7] Query parsing failed.

Expected result

The query executes as normal.

Additional information