Real ChatGPT answer · index seedge4har2rQt4completeB2B software · data and analytics platformscommercial
What are the best query diagnostic tools for identifying locking contention and high IO wait times in distributed analytical databases today?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What are the best query diagnostic tools for identifying locking contention and high IO wait times in distributed analytical databases today?
10 real searches · 1 real-search pass
2026 distributed analytical database query diagnostics locking contention IO wait query profile system tables Snowflake BigQuery Databricks ClickHouse Trino RedshiftGoogle ↗
OBSERVEDOther / navigational
official documentation ClickHouse query profiling system.query_log system.processes ProfileEvents IO wait locksGoogle ↗
OBSERVEDReason
official documentation Snowflake query profile query insights blocking transactions lock contentionGoogle ↗
OBSERVEDOther / navigational
official documentation BigQuery execution details slot contention read wait INFORMATION_SCHEMA jobs timelineGoogle ↗
OBSERVEDReason
official documentation Databricks query profile system tables IO wait lock contentionGoogle ↗
OBSERVEDReason
site:clickhouse.com/docs system.query_log ProfileEvents system.processes query profiling IO wait ClickHouseGoogle ↗
OBSERVEDReason
site:docs.snowflake.com blocked transactions lock contention query history blocked_transactions lock waitGoogle ↗
OBSERVEDConsequence
site:docs.aws.amazon.com/redshift lock contention STL_TR_CONFLICT SYS_QUERY_HISTORY IO wait query monitoringGoogle ↗
OBSERVEDReason
site:trino.io/docs current query monitoring task statistics blocked drivers physical input bytes queryGoogle ↗
OBSERVEDOther / navigational
site:postgresql.org/docs pg_stat_activity wait_event pg_locks pg_stat_io documentationGoogle ↗
OBSERVEDOther / navigational
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (10)
Classes come from the query-classifier (a local Laya model). 9 of 10 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT10 real searches · gpt-6
2026 distributed analytical database query diagnostics locking contention IO wait query profile system tables Snowflake BigQuery Databricks ClickHouse Trino Redshift Google ↗
official documentation ClickHouse query profiling system.query_log system.processes ProfileEvents IO wait locks Google ↗
official documentation Snowflake query profile query insights blocking transactions lock contention Google ↗
official documentation BigQuery execution details slot contention read wait INFORMATION_SCHEMA jobs timeline Google ↗
official documentation Databricks query profile system tables IO wait lock contention Google ↗
site:clickhouse.com/docs system.query_log ProfileEvents system.processes query profiling IO wait ClickHouse Google ↗
site:docs.snowflake.com blocked transactions lock contention query history blocked_transactions lock wait Google ↗
site:docs.aws.amazon.com/redshift lock contention STL_TR_CONFLICT SYS_QUERY_HISTORY IO wait query monitoring Google ↗
site:trino.io/docs current query monitoring task statistics blocked drivers physical input bytes query Google ↗
site:postgresql.org/docs pg_stat_activity wait_event pg_locks pg_stat_io documentation Google ↗
- Transactions · docs.snowflake.com
- LOCK_WAIT_HISTORY view · docs.snowflake.com
- Using query insights to improve performance · docs.snowflake.com
- Top 10 best practices tips for ClickHouse · clickhouse.com
- The definitive guide to ClickHouse query optimization (2026) | Engineering | ClickHouse Resource Hub · clickhouse.com
- clickhouse-diagnostics/README.md at main · ClickHouse/clickhouse-diagnostics · github.com
- ClickHouse query log documentation · clickhouse.com
- Query and Database Monitoring · docs.aws.amazon.com
- Query takes too long · docs.aws.amazon.com
- STL_TR_CONFLICT · docs.aws.amazon.com
- Query profile · docs.databricks.com
- How to Diagnose Slow Queries in Databricks: Query Profile, Photon, Spill and Genie Code · answers.databricks.com
- Query plan and timeline | BigQuery | Google Cloud Documentation · docs.cloud.google.com
- JOBS view | BigQuery | Google Cloud Documentation · docs.cloud.google.com
- JOBS_TIMELINE view | BigQuery | Google Cloud Documentation · docs.cloud.google.com
- Web UI · trino.io
- Trino Web UI documentation · trino.io
- Understand wait events · grafana.com
- Grafana Database Observability · grafana.com
- Percona PMM · percona.com
- OpenTelemetry · opentelemetry.io
- PostgreSQL lock monitoring · postgresql.org
Semantic map
Every query placed by meaning (EmbeddingGemma 2, 256-d). Shaded regions are topics, nearby points are near-paraphrases, and a circle's size is how often the query came back.
Colour
SimulatedReal search
Hover a query to see its counterpart · zoom with Ctrl/⌘ + scroll, a pinch, double-click or +
Queries
10 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
2026 distributed analytical database query diagnostics locking contention IO wait query profile system tables Snowflake BigQuery Databricks ClickHouse Trino Redshift OBSERVED | Google ↗ AI Mode ↗ | — | Other / navigational | — | — | 1x of 1 | |
official documentation ClickHouse query profiling system.query_log system.processes ProfileEvents IO wait locks OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
official documentation Snowflake query profile query insights blocking transactions lock contention OBSERVED | Google ↗ AI Mode ↗ | — | Other / navigational | — | — | 1x of 1 | |
official documentation BigQuery execution details slot contention read wait INFORMATION_SCHEMA jobs timeline OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
official documentation Databricks query profile system tables IO wait lock contention OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
site:clickhouse.com/docs system.query_log ProfileEvents system.processes query profiling IO wait ClickHouse OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
site:docs.snowflake.com blocked transactions lock contention query history blocked_transactions lock wait OBSERVED | Google ↗ AI Mode ↗ | — | Consequence | — | — | 1x of 1 | |
site:docs.aws.amazon.com/redshift lock contention STL_TR_CONFLICT SYS_QUERY_HISTORY IO wait query monitoring OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
site:trino.io/docs current query monitoring task statistics blocked drivers physical input bytes query OBSERVED | Google ↗ AI Mode ↗ | — | Other / navigational | — | — | 1x of 1 | |
site:postgresql.org/docs pg_stat_activity wait_event pg_locks pg_stat_io documentation OBSERVED | Google ↗ AI Mode ↗ | — | Other / navigational | — | — | 1x of 1 |