Trino insights

Open SourceVersions: [current]51 metrics

OpenTelemetry·

Coordinator crashes from Ranger plugin JavaScript policy memory leakcritical

trino.jvm.heap_memory.used trino.jvm.heap_memory.max trino.jvm.gc.collection_time

19d ago▸

Skewed column statistics cause broadcast join memory overflowcritical

trino.memory.queries_killed_oom trino.execution.failed_queries.one_minute

8mo ago▸

Outlier values poison auto-collected column statisticswarning

8mo ago▸

Boolean flag columns bypass skewed statistics in filter selectivityinfo

8mo ago▸

High query failure rate indicates operational issueswarning

trino.execution.failed_queries.one_minute trino.execution.failed_queries.five_minute trino.execution.canceled_queries.one_minute

8mo ago▸

Long-running queries cause resource contentionwarning

trino.execution.time.p95 trino.execution.time.p99

8mo ago▸

High memory usage causes out-of-memory failurescritical

trino.memory.queries_killed_oom trino.memory.cluster_memory_bytes trino.memory.total_distributed_bytes

8mo ago▸

CPU-intensive queries degrade cluster performancewarning

trino.execution.cpu_time.one_minute trino.execution.cpu_time.five_minute trino.execution.cpu_time.total

8mo ago▸

High query concurrency indicates capacity constraintswarning

trino.execution.running_queries trino.execution.queued_queries

8mo ago▸

Worker hangs in terminating state when coordinator shuts down first

9mo ago▸

ISTIO service mesh between Trino nodes causes shutdown hang

9mo ago▸

NodeStateManager shutdown blocked by discovery announcement retrieswarning

9mo ago▸

Worker parallelism drops to zero with threads stuck in WAITING statecritical

trino.cluster.active_workers trino.task.running_tasks trino.execution.running_queries

11mo ago▸

Cluster intermittently enters idle state after initial query executioncritical

trino.execution.queued_queries trino.execution.running_queries trino.jvm.process_cpu_load+1 more

11mo ago▸

Long GC pauses cause HTTP 408 task timeout failurescritical

trino.jvm.gc.collection_time trino.execution.failed_queries.one_minute trino.jvm.heap_memory.used

11mo ago▸

SPI class found in plugin classloader causes ClassNotFoundExceptionwarning

1y ago▸

PageTransportTimeoutException occurs without worker failure or obvious resource exhaustionwarning

trino.execution.failed_queries.one_minute trino.jvm.gc.collection_time trino.jvm.process_cpu_load+1 more

1y ago▸

Pinot connector IndexPlugin fails to load with worker thread class loadercritical

trino.cluster.plugins

1y ago▸

I/O time dominates query execution causing slow performance

1y ago▸

Configuration parameters set below defaults degrade performancewarning

1y ago▸

Query performance inconsistent between first and subsequent runs

1y ago▸

Adding nodes without identifying bottleneck is ineffectiveinfo

1y ago▸

PAGE_TRANSPORT_TIMEOUT causes query failures after 1 minutecritical

trino.execution.failed_queries.one_minute trino.execution.time.p95

1y ago▸

Insufficient buffer sizes prevent large dataset operationswarning

trino.memory.pool.free_bytes trino.task.output_data_size.five_minute

1y ago▸

Memory limit exceeded after upgrade due to missing Iceberg partition filter pushdowncritical

trino.memory.total_distributed_bytes trino.input.rows.total trino.input.bytes.total+1 more

1y ago▸

Duplicate PluginClassLoader instances cause JDBC query failures

trino.execution.failed_queries.one_minute

1y ago▸

Coordinator CPU exhausted polling dead tasks from terminated queriescritical

trino.jvm.process_cpu_load trino.execution.running_queries

1y ago▸

High fragment blocked time indicates data transfer bottleneckwarning

trino.execution.blocked_queries trino.network.exchange.active_clients trino.execution.time.p95

1y ago▸

High per-task input standard deviation indicates data skewwarning

trino.task.input_data_size.five_minute trino.input.bytes.one_minute

1y ago▸

Query phase timing reveals specific performance bottleneck typesinfo

trino.execution.queued_queries trino.execution.time.p95 trino.resource_group.queued_queries

1y ago▸