test: improve SST progress test with large table and specific value patterns

- Use manticore-load to create table with 100k docs for slower SST
- Run JOIN in background to check progress during transfer
- Replace generic patterns with specific ones matching task requirements
- Simplify comments for better readability

Author: PavelShilin89

test/clt-tests/replication/test-sst-progress.rec

@@ -1,19 +1,5 @@
 ––– comment –––
-Test for SST (State Snapshot Transfer) progress monitoring during table replication
-Issue: https://github.com/manticoresoftware/effyis/issues/390
-
-Problem: When adding a large table to cluster via ALTER CLUSTER ADD, there was no way
-to track replication progress. Users couldn't determine how much was copied or remaining.
-
-Solution: Added SST progress variables to SHOW STATUS:
-- cluster_<name>_sst_total: Overall progress (0-100)
-- cluster_<name>_sst_stage: Current stage (e.g., "send files")
-- cluster_<name>_sst_stage_total: Progress of current stage (0-100)
-- cluster_<name>_sst_tables: Total tables being transferred
-- cluster_<name>_sst_table: Current table being transferred (e.g., "3 (products)")
-- cluster_<name>_node_state: Node state (donor/joiner/synced)
-
-This test validates that SST progress variables exist in SHOW STATUS output.
+Test SST progress variables in SHOW STATUS
 ––– input –––
 apt-get update -y > /dev/null; echo $?
 ––– output –––
@@ -55,10 +41,19 @@ mysql -h0 -P1306 -e "SHOW STATUS LIKE 'cluster_sst_test_status'\G"
 Counter: cluster_sst_test_status
   Value: primary
 ––– comment –––
-Create simple table and add to cluster
+Create large table with data using manticore-load
 ––– input –––
-mysql -h0 -P1306 -e "CREATE TABLE test_table (id bigint, title text)"
+manticore-load --quiet --json --init="CREATE TABLE test_table (id bigint, title text, age int)" --load="INSERT INTO test_table (id, title, age) VALUES (<increment>, '<text/10/50>', <int/1/100>)" --batch-size=1000 --threads=1 --total=100000
 ––– output –––
+{
+    "threads": #!/[0-9]+/!#,
+    "batch_size": #!/[0-9]+/!#,
+    "time": "#!/[0-9]+:[0-9]+/!#",
+    "documents": #!/[0-9]+/!#,
+    "documents_per_second": #!/[0-9]+/!#
+}
+––– comment –––
+Add large table to cluster
 ––– input –––
 mysql -h0 -P1306 -e "ALTER CLUSTER sst_test ADD test_table"
 ––– output –––
@@ -84,58 +79,56 @@ if timeout 10 grep -qm1 '\[BUDDY\] started' <(tail -n 1000 -f /var/log/manticore
 ––– output –––
 Buddy started!
 ––– comment –––
-Join node 2 to cluster - this triggers SST
+Join node 2 to cluster in background - this triggers SST
 ––– input –––
-mysql -h0 -P2306 -e "JOIN CLUSTER sst_test AT '127.0.0.1:1312'"
+mysql -h0 -P2306 -e "JOIN CLUSTER sst_test AT '127.0.0.1:1312'" &
 ––– output –––
 ––– comment –––
-Verify SST progress variables exist on donor node
-The main goal is to check that these variables are available, not their specific values
+Check SST progress immediately while transfer is happening
 ––– input –––
-mysql -h0 -P1306 -e "SHOW STATUS LIKE 'cluster_sst_test_node_state'\G"
+sleep 0.5; mysql -h0 -P1306 -e "SHOW STATUS LIKE 'cluster_sst_test_node_state'\G"
 ––– output –––
 *************************** 1. row ***************************
 Counter: cluster_sst_test_node_state
-  Value: #!/.+/!#
+  Value: #!/(donor|joiner|synced)/!#
 ––– comment –––
 Verify all 5 SST progress variables exist
 ––– input –––
 mysql -h0 -P1306 -e "SHOW STATUS LIKE 'cluster_sst_test_sst_%'\G" | grep "Counter:" | wc -l
 ––– output –––
 5
 ––– comment –––
-Check that each individual SST variable exists
-Values will be "-" if SST completed, or numbers/stage names if still active
+Verify individual SST variables
 ––– input –––
 mysql -h0 -P1306 -e "SHOW STATUS LIKE 'cluster_sst_test_sst_total'\G"
 ––– output –––
 *************************** 1. row ***************************
 Counter: cluster_sst_test_sst_total
-  Value: #!/.*/!#
+  Value: #!/([0-9]{1,2}|100|-)/!#
 ––– input –––
 mysql -h0 -P1306 -e "SHOW STATUS LIKE 'cluster_sst_test_sst_stage'\G"
 ––– output –––
 *************************** 1. row ***************************
 Counter: cluster_sst_test_sst_stage
-  Value: #!/.*/!#
+  Value: #!/([a-z ]+|-)/!#
 ––– input –––
 mysql -h0 -P1306 -e "SHOW STATUS LIKE 'cluster_sst_test_sst_stage_total'\G"
 ––– output –––
 *************************** 1. row ***************************
 Counter: cluster_sst_test_sst_stage_total
-  Value: #!/.*/!#
+  Value: #!/([0-9]{1,2}|100|-)/!#
 ––– input –––
 mysql -h0 -P1306 -e "SHOW STATUS LIKE 'cluster_sst_test_sst_tables'\G"
 ––– output –––
 *************************** 1. row ***************************
 Counter: cluster_sst_test_sst_tables
-  Value: #!/.*/!#
+  Value: #!/([0-9]+|-)/!#
 ––– input –––
 mysql -h0 -P1306 -e "SHOW STATUS LIKE 'cluster_sst_test_sst_table'\G"
 ––– output –––
 *************************** 1. row ***************************
 Counter: cluster_sst_test_sst_table
-  Value: #!/.*/!#
+  Value: #!/([0-9]+ \([a-z_]+\)|-)/!#
 ––– comment –––
 Verify both nodes are synced
 ––– input –––