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use cluster_tidb_trx for lock troubleshooting #16619

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Mar 5, 2024
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use cluster_tidb_trx for lock troubleshooting #16619

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4 changes: 3 additions & 1 deletion troubleshoot-lock-conflicts.md
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Original file line number Diff line number Diff line change
Expand Up @@ -86,13 +86,14 @@ For example, to filter transactions with a long lock-waiting time using the `whe
{{< copyable "sql" >}}

```sql
select trx.* from information_schema.data_lock_waits as l left join information_schema.tidb_trx as trx on l.trx_id = trx.id where l.key = "7480000000000000415F728000000000000001"\G
select trx.* from information_schema.data_lock_waits as l left join information_schema.cluster_tidb_trx as trx on l.trx_id = trx.id where l.key = "7480000000000000415F728000000000000001"\G
```

The following is an example output:

```sql
*************************** 1. row ***************************
INSTANCE: 127.0.0.1:10080
ID: 426831815660273668
START_TIME: 2021-08-06 07:16:00.081000
CURRENT_SQL_DIGEST: 06da614b93e62713bd282d4685fc5b88d688337f36e88fe55871726ce0eb80d7
Expand All @@ -106,6 +107,7 @@ CURRENT_SQL_DIGEST_TEXT: update `t` set `v` = `v` + ? where `id` = ? ;
DB: test
ALL_SQL_DIGESTS: ["0fdc781f19da1c6078c9de7eadef8a307889c001e05f107847bee4cfc8f3cdf3","06da614b93e62713bd282d4685fc5b88d688337f36e88fe55871726ce0eb80d7"]
*************************** 2. row ***************************
INSTANCE: 127.0.0.1:10080
ID: 426831818019569665
START_TIME: 2021-08-06 07:16:09.081000
CURRENT_SQL_DIGEST: 06da614b93e62713bd282d4685fc5b88d688337f36e88fe55871726ce0eb80d7
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