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sql,mon: expose the memory monitors as virtual table #97657

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merged 1 commit into from
Mar 1, 2023
Merged

sql,mon: expose the memory monitors as virtual table #97657

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1 change: 1 addition & 0 deletions pkg/ccl/logictestccl/testdata/logic_test/crdb_internal_tenant
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Expand Up @@ -74,6 +74,7 @@ crdb_internal node_contention_events table admin NULL NULL
crdb_internal node_distsql_flows table admin NULL NULL
crdb_internal node_execution_insights table admin NULL NULL
crdb_internal node_inflight_trace_spans table admin NULL NULL
crdb_internal node_memory_monitors table admin NULL NULL
crdb_internal node_metrics table admin NULL NULL
crdb_internal node_queries table admin NULL NULL
crdb_internal node_runtime_info table admin NULL NULL
Expand Down
5 changes: 5 additions & 0 deletions pkg/cli/testdata/zip/partial1
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Expand Up @@ -87,6 +87,7 @@ debug zip --concurrency=1 --cpu-profile-duration=0s /dev/null
[node 1] retrieving SQL data for crdb_internal.node_distsql_flows... writing output: debug/nodes/1/crdb_internal.node_distsql_flows.txt... done
[node 1] retrieving SQL data for crdb_internal.node_execution_insights... writing output: debug/nodes/1/crdb_internal.node_execution_insights.txt... done
[node 1] retrieving SQL data for crdb_internal.node_inflight_trace_spans... writing output: debug/nodes/1/crdb_internal.node_inflight_trace_spans.txt... done
[node 1] retrieving SQL data for crdb_internal.node_memory_monitors... writing output: debug/nodes/1/crdb_internal.node_memory_monitors.txt... done
[node 1] retrieving SQL data for crdb_internal.node_metrics... writing output: debug/nodes/1/crdb_internal.node_metrics.txt... done
[node 1] retrieving SQL data for crdb_internal.node_queries... writing output: debug/nodes/1/crdb_internal.node_queries.txt... done
[node 1] retrieving SQL data for crdb_internal.node_runtime_info... writing output: debug/nodes/1/crdb_internal.node_runtime_info.txt... done
Expand Down Expand Up @@ -206,6 +207,9 @@ debug zip --concurrency=1 --cpu-profile-duration=0s /dev/null
[node 2] retrieving SQL data for crdb_internal.node_inflight_trace_spans... writing output: debug/nodes/2/crdb_internal.node_inflight_trace_spans.txt...
[node 2] retrieving SQL data for crdb_internal.node_inflight_trace_spans: last request failed: dial tcp ...
[node 2] retrieving SQL data for crdb_internal.node_inflight_trace_spans: creating error output: debug/nodes/2/crdb_internal.node_inflight_trace_spans.txt.err.txt... done
[node 2] retrieving SQL data for crdb_internal.node_memory_monitors... writing output: debug/nodes/2/crdb_internal.node_memory_monitors.txt...
[node 2] retrieving SQL data for crdb_internal.node_memory_monitors: last request failed: dial tcp ...
[node 2] retrieving SQL data for crdb_internal.node_memory_monitors: creating error output: debug/nodes/2/crdb_internal.node_memory_monitors.txt.err.txt... done
[node 2] retrieving SQL data for crdb_internal.node_metrics... writing output: debug/nodes/2/crdb_internal.node_metrics.txt...
[node 2] retrieving SQL data for crdb_internal.node_metrics: last request failed: dial tcp ...
[node 2] retrieving SQL data for crdb_internal.node_metrics: creating error output: debug/nodes/2/crdb_internal.node_metrics.txt.err.txt... done
Expand Down Expand Up @@ -276,6 +280,7 @@ debug zip --concurrency=1 --cpu-profile-duration=0s /dev/null
[node 3] retrieving SQL data for crdb_internal.node_distsql_flows... writing output: debug/nodes/3/crdb_internal.node_distsql_flows.txt... done
[node 3] retrieving SQL data for crdb_internal.node_execution_insights... writing output: debug/nodes/3/crdb_internal.node_execution_insights.txt... done
[node 3] retrieving SQL data for crdb_internal.node_inflight_trace_spans... writing output: debug/nodes/3/crdb_internal.node_inflight_trace_spans.txt... done
[node 3] retrieving SQL data for crdb_internal.node_memory_monitors... writing output: debug/nodes/3/crdb_internal.node_memory_monitors.txt... done
[node 3] retrieving SQL data for crdb_internal.node_metrics... writing output: debug/nodes/3/crdb_internal.node_metrics.txt... done
[node 3] retrieving SQL data for crdb_internal.node_queries... writing output: debug/nodes/3/crdb_internal.node_queries.txt... done
[node 3] retrieving SQL data for crdb_internal.node_runtime_info... writing output: debug/nodes/3/crdb_internal.node_runtime_info.txt... done
Expand Down
2 changes: 2 additions & 0 deletions pkg/cli/testdata/zip/partial1_excluded
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Expand Up @@ -87,6 +87,7 @@ debug zip /dev/null --concurrency=1 --exclude-nodes=2 --cpu-profile-duration=0
[node 1] retrieving SQL data for crdb_internal.node_distsql_flows... writing output: debug/nodes/1/crdb_internal.node_distsql_flows.txt... done
[node 1] retrieving SQL data for crdb_internal.node_execution_insights... writing output: debug/nodes/1/crdb_internal.node_execution_insights.txt... done
[node 1] retrieving SQL data for crdb_internal.node_inflight_trace_spans... writing output: debug/nodes/1/crdb_internal.node_inflight_trace_spans.txt... done
[node 1] retrieving SQL data for crdb_internal.node_memory_monitors... writing output: debug/nodes/1/crdb_internal.node_memory_monitors.txt... done
[node 1] retrieving SQL data for crdb_internal.node_metrics... writing output: debug/nodes/1/crdb_internal.node_metrics.txt... done
[node 1] retrieving SQL data for crdb_internal.node_queries... writing output: debug/nodes/1/crdb_internal.node_queries.txt... done
[node 1] retrieving SQL data for crdb_internal.node_runtime_info... writing output: debug/nodes/1/crdb_internal.node_runtime_info.txt... done
Expand Down Expand Up @@ -185,6 +186,7 @@ debug zip /dev/null --concurrency=1 --exclude-nodes=2 --cpu-profile-duration=0
[node 3] retrieving SQL data for crdb_internal.node_distsql_flows... writing output: debug/nodes/3/crdb_internal.node_distsql_flows.txt... done
[node 3] retrieving SQL data for crdb_internal.node_execution_insights... writing output: debug/nodes/3/crdb_internal.node_execution_insights.txt... done
[node 3] retrieving SQL data for crdb_internal.node_inflight_trace_spans... writing output: debug/nodes/3/crdb_internal.node_inflight_trace_spans.txt... done
[node 3] retrieving SQL data for crdb_internal.node_memory_monitors... writing output: debug/nodes/3/crdb_internal.node_memory_monitors.txt... done
[node 3] retrieving SQL data for crdb_internal.node_metrics... writing output: debug/nodes/3/crdb_internal.node_metrics.txt... done
[node 3] retrieving SQL data for crdb_internal.node_queries... writing output: debug/nodes/3/crdb_internal.node_queries.txt... done
[node 3] retrieving SQL data for crdb_internal.node_runtime_info... writing output: debug/nodes/3/crdb_internal.node_runtime_info.txt... done
Expand Down
2 changes: 2 additions & 0 deletions pkg/cli/testdata/zip/partial2
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Expand Up @@ -87,6 +87,7 @@ debug zip --concurrency=1 --cpu-profile-duration=0 /dev/null
[node 1] retrieving SQL data for crdb_internal.node_distsql_flows... writing output: debug/nodes/1/crdb_internal.node_distsql_flows.txt... done
[node 1] retrieving SQL data for crdb_internal.node_execution_insights... writing output: debug/nodes/1/crdb_internal.node_execution_insights.txt... done
[node 1] retrieving SQL data for crdb_internal.node_inflight_trace_spans... writing output: debug/nodes/1/crdb_internal.node_inflight_trace_spans.txt... done
[node 1] retrieving SQL data for crdb_internal.node_memory_monitors... writing output: debug/nodes/1/crdb_internal.node_memory_monitors.txt... done
[node 1] retrieving SQL data for crdb_internal.node_metrics... writing output: debug/nodes/1/crdb_internal.node_metrics.txt... done
[node 1] retrieving SQL data for crdb_internal.node_queries... writing output: debug/nodes/1/crdb_internal.node_queries.txt... done
[node 1] retrieving SQL data for crdb_internal.node_runtime_info... writing output: debug/nodes/1/crdb_internal.node_runtime_info.txt... done
Expand Down Expand Up @@ -184,6 +185,7 @@ debug zip --concurrency=1 --cpu-profile-duration=0 /dev/null
[node 3] retrieving SQL data for crdb_internal.node_distsql_flows... writing output: debug/nodes/3/crdb_internal.node_distsql_flows.txt... done
[node 3] retrieving SQL data for crdb_internal.node_execution_insights... writing output: debug/nodes/3/crdb_internal.node_execution_insights.txt... done
[node 3] retrieving SQL data for crdb_internal.node_inflight_trace_spans... writing output: debug/nodes/3/crdb_internal.node_inflight_trace_spans.txt... done
[node 3] retrieving SQL data for crdb_internal.node_memory_monitors... writing output: debug/nodes/3/crdb_internal.node_memory_monitors.txt... done
[node 3] retrieving SQL data for crdb_internal.node_metrics... writing output: debug/nodes/3/crdb_internal.node_metrics.txt... done
[node 3] retrieving SQL data for crdb_internal.node_queries... writing output: debug/nodes/3/crdb_internal.node_queries.txt... done
[node 3] retrieving SQL data for crdb_internal.node_runtime_info... writing output: debug/nodes/3/crdb_internal.node_runtime_info.txt... done
Expand Down
1 change: 1 addition & 0 deletions pkg/cli/testdata/zip/testzip
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Expand Up @@ -90,6 +90,7 @@ debug zip --concurrency=1 --cpu-profile-duration=1s /dev/null
[node 1] retrieving SQL data for crdb_internal.node_distsql_flows... writing output: debug/nodes/1/crdb_internal.node_distsql_flows.txt... done
[node 1] retrieving SQL data for crdb_internal.node_execution_insights... writing output: debug/nodes/1/crdb_internal.node_execution_insights.txt... done
[node 1] retrieving SQL data for crdb_internal.node_inflight_trace_spans... writing output: debug/nodes/1/crdb_internal.node_inflight_trace_spans.txt... done
[node 1] retrieving SQL data for crdb_internal.node_memory_monitors... writing output: debug/nodes/1/crdb_internal.node_memory_monitors.txt... done
[node 1] retrieving SQL data for crdb_internal.node_metrics... writing output: debug/nodes/1/crdb_internal.node_metrics.txt... done
[node 1] retrieving SQL data for crdb_internal.node_queries... writing output: debug/nodes/1/crdb_internal.node_queries.txt... done
[node 1] retrieving SQL data for crdb_internal.node_runtime_info... writing output: debug/nodes/1/crdb_internal.node_runtime_info.txt... done
Expand Down
9 changes: 9 additions & 0 deletions pkg/cli/testdata/zip/testzip_concurrent
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Expand Up @@ -319,6 +319,9 @@ zip
[node 1] retrieving SQL data for crdb_internal.node_inflight_trace_spans...
[node 1] retrieving SQL data for crdb_internal.node_inflight_trace_spans: done
[node 1] retrieving SQL data for crdb_internal.node_inflight_trace_spans: writing output: debug/nodes/1/crdb_internal.node_inflight_trace_spans.txt...
[node 1] retrieving SQL data for crdb_internal.node_memory_monitors...
[node 1] retrieving SQL data for crdb_internal.node_memory_monitors: done
[node 1] retrieving SQL data for crdb_internal.node_memory_monitors: writing output: debug/nodes/1/crdb_internal.node_memory_monitors.txt...
[node 1] retrieving SQL data for crdb_internal.node_metrics...
[node 1] retrieving SQL data for crdb_internal.node_metrics: done
[node 1] retrieving SQL data for crdb_internal.node_metrics: writing output: debug/nodes/1/crdb_internal.node_metrics.txt...
Expand Down Expand Up @@ -665,6 +668,9 @@ zip
[node 2] retrieving SQL data for crdb_internal.node_inflight_trace_spans...
[node 2] retrieving SQL data for crdb_internal.node_inflight_trace_spans: done
[node 2] retrieving SQL data for crdb_internal.node_inflight_trace_spans: writing output: debug/nodes/2/crdb_internal.node_inflight_trace_spans.txt...
[node 2] retrieving SQL data for crdb_internal.node_memory_monitors...
[node 2] retrieving SQL data for crdb_internal.node_memory_monitors: done
[node 2] retrieving SQL data for crdb_internal.node_memory_monitors: writing output: debug/nodes/2/crdb_internal.node_memory_monitors.txt...
[node 2] retrieving SQL data for crdb_internal.node_metrics...
[node 2] retrieving SQL data for crdb_internal.node_metrics: done
[node 2] retrieving SQL data for crdb_internal.node_metrics: writing output: debug/nodes/2/crdb_internal.node_metrics.txt...
Expand Down Expand Up @@ -1011,6 +1017,9 @@ zip
[node 3] retrieving SQL data for crdb_internal.node_inflight_trace_spans...
[node 3] retrieving SQL data for crdb_internal.node_inflight_trace_spans: done
[node 3] retrieving SQL data for crdb_internal.node_inflight_trace_spans: writing output: debug/nodes/3/crdb_internal.node_inflight_trace_spans.txt...
[node 3] retrieving SQL data for crdb_internal.node_memory_monitors...
[node 3] retrieving SQL data for crdb_internal.node_memory_monitors: done
[node 3] retrieving SQL data for crdb_internal.node_memory_monitors: writing output: debug/nodes/3/crdb_internal.node_memory_monitors.txt...
[node 3] retrieving SQL data for crdb_internal.node_metrics...
[node 3] retrieving SQL data for crdb_internal.node_metrics: done
[node 3] retrieving SQL data for crdb_internal.node_metrics: writing output: debug/nodes/3/crdb_internal.node_metrics.txt...
Expand Down
11 changes: 11 additions & 0 deletions pkg/cli/zip_table_registry.go
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Original file line number Diff line number Diff line change
Expand Up @@ -659,6 +659,17 @@ var zipInternalTablesPerNode = DebugZipTableRegistry{
) SELECT trace_id, parent_span_id, span_id, goroutine_id, finished, start_time, duration, operation, payload_type
FROM spans, LATERAL crdb_internal.payloads_for_span(span_id)`,
},
"crdb_internal.node_memory_monitors": {
nonSensitiveCols: NonSensitiveColumns{
"level",
"name",
"id",
"parent_id",
"used",
"reserved_used",
"reserved_reserved",
},
},
"crdb_internal.node_metrics": {
nonSensitiveCols: NonSensitiveColumns{
"store_id",
Expand Down
2 changes: 1 addition & 1 deletion pkg/server/status_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3707,7 +3707,7 @@ func TestTransactionContentionEvents(t *testing.T) {
WHERE length(contending_key) > 0`,
)
if tc.testName == "nopermission" {
require.Contains(t, err.Error(), "requires VIEWACTIVITY")
require.Contains(t, err.Error(), "does not have VIEWACTIVITY")
} else {
require.NoError(t, err)
visibleContendingKeysCount := tree.MustBeDInt(row[0])
Expand Down
78 changes: 56 additions & 22 deletions pkg/sql/crdb_internal.go
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Expand Up @@ -166,6 +166,7 @@ var crdbInternal = virtualSchema{
catconstants.CrdbInternalLocalSessionsTableID: crdbInternalLocalSessionsTable,
catconstants.CrdbInternalLocalMetricsTableID: crdbInternalLocalMetricsTable,
catconstants.CrdbInternalNodeExecutionInsightsTableID: crdbInternalNodeExecutionInsightsTable,
catconstants.CrdbInternalNodeMemoryMonitorsTableID: crdbInternalNodeMemoryMonitors,
catconstants.CrdbInternalNodeStmtStatsTableID: crdbInternalNodeStmtStatsTable,
catconstants.CrdbInternalNodeTxnExecutionInsightsTableID: crdbInternalNodeTxnExecutionInsightsTable,
catconstants.CrdbInternalNodeTxnStatsTableID: crdbInternalNodeTxnStatsTable,
Expand Down Expand Up @@ -1417,8 +1418,7 @@ CREATE TABLE crdb_internal.node_statement_statistics (
return err
}
if !hasViewActivityOrViewActivityRedacted {
return pgerror.Newf(pgcode.InsufficientPrivilege,
"user %s does not have %s or %s privilege", p.User(), roleoption.VIEWACTIVITY, roleoption.VIEWACTIVITYREDACTED)
return noViewActivityOrViewActivityRedactedRoleError(p.User())
}

sqlStats, err := getSQLStats(p, "crdb_internal.node_statement_statistics")
Expand Down Expand Up @@ -1643,8 +1643,7 @@ CREATE TABLE crdb_internal.node_transaction_statistics (
return err
}
if !hasViewActivityOrhasViewActivityRedacted {
return pgerror.Newf(pgcode.InsufficientPrivilege,
"user %s does not have %s or %s privilege", p.User(), roleoption.VIEWACTIVITY, roleoption.VIEWACTIVITYREDACTED)
return noViewActivityOrViewActivityRedactedRoleError(p.User())
}

sqlStats, err := getSQLStats(p, "crdb_internal.node_transaction_statistics")
Expand Down Expand Up @@ -6596,8 +6595,7 @@ CREATE TABLE crdb_internal.transaction_contention_events (
return nil, nil, err
}
if !hasPermission {
return nil, nil, errors.New("crdb_internal.transaction_contention_events " +
"requires VIEWACTIVITY or VIEWACTIVITYREDACTED role option")
return nil, nil, noViewActivityOrViewActivityRedactedRoleError(p.User())
}

// If a user has VIEWACTIVITYREDACTED role option but the user does not
Expand Down Expand Up @@ -6881,8 +6879,7 @@ func genClusterLocksGenerator(
return nil, nil, err
}
if !hasViewActivityOrViewActivityRedacted {
return nil, nil, pgerror.Newf(pgcode.InsufficientPrivilege,
"user %s does not have %s or %s privilege", p.User(), roleoption.VIEWACTIVITY, roleoption.VIEWACTIVITYREDACTED)
return nil, nil, noViewActivityOrViewActivityRedactedRoleError(p.User())
}
shouldRedactKeys := false
if !hasAdmin {
Expand Down Expand Up @@ -7197,13 +7194,7 @@ func populateTxnExecutionInsights(
return err
}
if !hasRoleOption {
return pgerror.Newf(
pgcode.InsufficientPrivilege,
"user %s does not have %s or %s privilege",
p.User(),
roleoption.VIEWACTIVITY,
roleoption.VIEWACTIVITYREDACTED,
)
return noViewActivityOrViewActivityRedactedRoleError(p.User())
}

response, err := p.extendedEvalCtx.SQLStatusServer.ListExecutionInsights(ctx, request)
Expand Down Expand Up @@ -7353,6 +7344,16 @@ var crdbInternalNodeExecutionInsightsTable = virtualSchemaTable{
},
}

func noViewActivityOrViewActivityRedactedRoleError(user username.SQLUsername) error {
return pgerror.Newf(
pgcode.InsufficientPrivilege,
"user %s does not have %s or %s privilege",
user,
roleoption.VIEWACTIVITY,
roleoption.VIEWACTIVITYREDACTED,
)
}

func populateStmtInsights(
ctx context.Context,
p *planner,
Expand All @@ -7364,13 +7365,7 @@ func populateStmtInsights(
return err
}
if !hasRoleOption {
return pgerror.Newf(
pgcode.InsufficientPrivilege,
"user %s does not have %s or %s privilege",
p.User(),
roleoption.VIEWACTIVITY,
roleoption.VIEWACTIVITYREDACTED,
)
return noViewActivityOrViewActivityRedactedRoleError(p.User())
}

response, err := p.extendedEvalCtx.SQLStatusServer.ListExecutionInsights(ctx, request)
Expand Down Expand Up @@ -7501,3 +7496,42 @@ func getContentionEventInfo(

return schemaDesc.GetName(), dbDesc.GetName(), tableDesc.GetName(), idxName, nil
}

var crdbInternalNodeMemoryMonitors = virtualSchemaTable{
comment: `node-level table listing all currently active memory monitors`,
schema: `
CREATE TABLE crdb_internal.node_memory_monitors (
level INT8,
name STRING,
id INT8,
parent_id INT8,
used INT8,
reserved_used INT8,
reserved_reserved INT8
);`,
populate: func(ctx context.Context, p *planner, _ catalog.DatabaseDescriptor, addRow func(...tree.Datum) error) error {
// The memory monitors' names can expose some information about the
// activity on the node, so we require VIEWACTIVITY or
// VIEWACTIVITYREDACTED permissions.
hasRoleOption, err := p.HasViewActivityOrViewActivityRedactedRole(ctx)
if err != nil {
return err
}
if !hasRoleOption {
return noViewActivityOrViewActivityRedactedRoleError(p.User())
}

monitorStateCb := func(monitor mon.MonitorState) error {
return addRow(
tree.NewDInt(tree.DInt(monitor.Level)),
tree.NewDString(monitor.Name),
tree.NewDInt(tree.DInt(monitor.ID)),
tree.NewDInt(tree.DInt(monitor.ParentID)),
tree.NewDInt(tree.DInt(monitor.Used)),
tree.NewDInt(tree.DInt(monitor.ReservedUsed)),
tree.NewDInt(tree.DInt(monitor.ReservedReserved)),
)
}
return p.extendedEvalCtx.ExecCfg.RootMemoryMonitor.TraverseTree(monitorStateCb)
},
}
2 changes: 1 addition & 1 deletion pkg/sql/distsql/server.go
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Original file line number Diff line number Diff line change
Expand Up @@ -268,7 +268,7 @@ func (ds *ServerImpl) setupFlow(
}

monitor = mon.NewMonitor(
"flow",
"flow "+redact.RedactableString(req.Flow.FlowID.Short()),
mon.MemoryResource,
ds.Metrics.CurBytesCount,
ds.Metrics.MaxBytesHist,
Expand Down
38 changes: 38 additions & 0 deletions pkg/sql/logictest/testdata/logic_test/crdb_internal
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,7 @@ crdb_internal node_contention_events table admin NULL NULL
crdb_internal node_distsql_flows table admin NULL NULL
crdb_internal node_execution_insights table admin NULL NULL
crdb_internal node_inflight_trace_spans table admin NULL NULL
crdb_internal node_memory_monitors table admin NULL NULL
crdb_internal node_metrics table admin NULL NULL
crdb_internal node_queries table admin NULL NULL
crdb_internal node_runtime_info table admin NULL NULL
Expand Down Expand Up @@ -1211,3 +1212,40 @@ user root

statement ok
REVOKE SYSTEM MODIFYCLUSTERSETTING FROM testuser

query TT
SELECT crdb_internal.humanize_bytes(NULL), crdb_internal.humanize_bytes(102400)
----
NULL 100 KiB

# Sanity checks of the crdb_internal.node_memory_monitors table.

# The root monitor has a standalone budget, so its 'used' field is zero.
query BB
SELECT used = 0, reserved_used > 0 FROM crdb_internal.node_memory_monitors WHERE name = 'root'
----
true true

query B
SELECT used > 0 FROM crdb_internal.node_memory_monitors WHERE name = 'sql'
----
true

# Run a query on one connection and observe it from another.
user testuser

statement async sleepQuery count 1
SELECT pg_sleep(3)

user root

query B
SELECT count(*) > 0 FROM crdb_internal.node_memory_monitors WHERE name LIKE '%flow%'
----
true

user testuser

awaitstatement sleepQuery

user root
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