tests: Fix unstable integration tests (#8205)

[ti-chi-bot]

This is an automated cherry-pick of #8205

What problem does this PR solve?

Issue Number: close #8206

Problem Summary:

Sometimes we run into error like this, https://ci.pingcap.net/blue/organizations/jenkins/tiflash-ghpr-integration-tests/detail/tiflash-ghpr-integration-tests/14731/pipeline

[2023-10-18T04:08:59.291Z] ++ cat ./log/tiflash/server.log
[2023-10-18T04:08:59.291Z] ++ grep 'Ready for connections'
[2023-10-18T04:08:59.291Z] + [[ -n [2023/10/18 12:08:53.086 +08:00] [INFO] [Server.cpp:1660] ["Ready for connections."] [thread_id=1] ]]
[2023-10-18T04:08:59.291Z] + local failed=false
[2023-10-18T04:08:59.291Z] + break
[2023-10-18T04:08:59.291Z] + '[' false == true ']'
[2023-10-18T04:08:59.291Z] + echo '   available'
[2023-10-18T04:08:59.291Z]    available
[2023-10-18T04:08:59.291Z] + docker-compose -f cluster_disable_new_collation.yaml -f tiflash-dt.yaml exec -T tiflash0 bash -c 'cd /tests ; ./run-test.sh tidb-ci/disable_new_collation_fullstack'
[2023-10-18T04:09:02.555Z] tidb-ci/disable_new_collation_fullstack/alter_default_value.test: Running
[2023-10-18T04:09:02.555Z]   File: tidb-ci/disable_new_collation_fullstack/alter_default_value.test
[2023-10-18T04:09:02.555Z]   Error line: 17
[2023-10-18T04:09:02.555Z]   Error: alter table test.t set tiflash replica 1
[2023-10-18T04:09:02.555Z]   Result:
[2023-10-18T04:09:02.555Z]     ERROR 1105 (HY000) at line 1: the tiflash replica count: 1 should be less than the total tiflash server count: 0
[2023-10-18T04:09:02.555Z]   Expected:
[2023-10-18T04:09:02.555Z]     <nothing>

sometimes, https://ci.pingcap.net/blue/organizations/jenkins/tiflash-ghpr-integration-tests/detail/tiflash-ghpr-integration-tests/14718/pipeline/291

[2023-10-17T10:10:29.342Z] fullstack-test2/ddl/alter_partition_by.test: Running
[2023-10-17T10:10:39.284Z]   File: fullstack-test2/ddl/alter_partition_by.test
[2023-10-17T10:10:39.284Z]   Error line: 127
[2023-10-17T10:10:39.284Z]   Error: select tidb_database,tidb_name from system.tables where tidb_database = 'test' and tidb_name = 't2' and is_tombstone = 0
[2023-10-17T10:10:39.284Z]   Result:
[2023-10-17T10:10:39.284Z]     <nothing>
[2023-10-17T10:10:39.284Z]   Expected:
[2023-10-17T10:10:39.284Z]     ┌─tidb_database─┬─tidb_name─┐
[2023-10-17T10:10:39.284Z]     │ test          │ t2        │
[2023-10-17T10:10:39.284Z]     └───────────────┴───────────┘

What is changed and how it works?

• Wait until TiFlash starts by Start to wait for terminal signal
• Make sure we can read data from tiflash in alter_partition_by.test

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

None

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JaySon-Huang, SeaRise

The full list of commands accepted by this bot can be found here.

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• OWNERS [JaySon-Huang,SeaRise]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-10-18 06:52:30.01445787 +0000 UTC m=+1812747.601568015: ☑️ agreed by SeaRise.
• 2023-10-18 07:09:29.973464866 +0000 UTC m=+1813767.560574998: ☑️ agreed by JaySon-Huang.

[JaySon-Huang]

/run-all-tests

[JaySon-Huang]

/run-all-tests