Alexey Serbin created KUDU-3568:
-----------------------------------
Summary: TestRowSetCompactionSkipWithBudgetingConstraints fails
when run on some nodes
Key: KUDU-3568
URL: https://issues.apache.org/jira/browse/KUDU-3568
Project: Kudu
Issue Type: Bug
Reporter: Alexey Serbin
Attachments: test-failure.log.xz
The {{TestCompaction.TestRowSetCompactionSkipWithBudgetingConstraints}}
scenario fails with the error like below when run on a machine with relatively
high memory (it might be just a Docker instance with tiny actual memory
allocated, but having the access to the {{/proc}} filesystem of the host
machine). The full test log is attached.
{noformat}
src/kudu/tablet/compaction-test.cc:908: Failure
Value of: JoinStrings(sink.logged_msgs(), "\n")
Expected: has substring "removed from compaction input due to memory
constraints"
Actual: "I20240425 10:13:05.497732 3573764 compaction-test.cc:902]
CompactRowSetsOp complete. Timing: real 0.673s\tuser 0.669s\tsys 0.004s
Metrics:
{\"bytes_written\":4817,\"cfile_cache_hit\":90,\"cfile_cache_hit_bytes\":4310,\"cfile_cache_miss\":330,\"cfile_cache_miss_bytes\":3794180,\"cfile_init\":41,\"delta_iterators_relevant\":40,\"dirs.queue_time_us\":503,\"dirs.run_cpu_time_us\":338,\"dirs.run_wall_time_us\":1780,\"drs_written\":1,\"lbm_read_time_us\":1951,\"lbm_reads_lt_1ms\":494,\"lbm_write_time_us\":1767,\"lbm_writes_lt_1ms\":132,\"mutex_wait_us\":189,\"num_input_rowsets\":10,\"peak_mem_usage\":2147727,\"rows_written\":20,\"thread_start_us\":242,\"threads_started\":5}"
(of type std::string)
{noformat}
For extra information, below is 10 lines from {{/proc/meminfo}} file on a node
where the test failed:
{noformat}
# cat /proc/meminfo | head -10
MemTotal: 527417196 kB
MemFree: 96640684 kB
MemAvailable: 363590980 kB
Buffers: 15352304 kB
Cached: 246687576 kB
SwapCached: 1294016 kB
Active: 214889608 kB
Inactive: 189745504 kB
Active(anon): 133110648 kB
Inactive(anon): 16977280 kB
{noformat}
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