def dashboard(self):
# This COULD be initialized in the constructor, but tornado < 3 doesn't
# call it
if getattr(self, '_dashboard', None) is not None:
return self._dashboard
self._dashboard = Dashboard("Database overview for %(database)s")
block_graph = Graph(
"Blocks (On database %(database)s)",
metrics=[DatabaseOverviewMetricGroup.total_blks_hit],
color_scheme=None)
db_graphs = [
Graph("Calls (On database %(database)s)",
metrics=[
DatabaseOverviewMetricGroup.avg_runtime,
DatabaseOverviewMetricGroup.load,
DatabaseOverviewMetricGroup.calls
]), block_graph
]
graphs_dash = [Dashboard("General Overview", [db_graphs])]
graphs = [TabContainer("All databases", graphs_dash)]
# Add powa_stat_all_relations graphs
all_rel_graphs = [
Graph("Access pattern",
metrics=[
DatabaseAllRelMetricGroup.seq_scan,
DatabaseAllRelMetricGroup.idx_scan,
DatabaseAllRelMetricGroup.idx_ratio
]),
Graph("DML activity",
metrics=[
DatabaseAllRelMetricGroup.n_tup_del,
DatabaseAllRelMetricGroup.n_tup_hot_upd,
DatabaseAllRelMetricGroup.n_tup_upd,
DatabaseAllRelMetricGroup.n_tup_ins
]),
Graph("Vacuum activity",
metrics=[
DatabaseAllRelMetricGroup.autoanalyze_count,
DatabaseAllRelMetricGroup.analyze_count,
DatabaseAllRelMetricGroup.autovacuum_count,
DatabaseAllRelMetricGroup.vacuum_count
])
]
graphs_dash.append(Dashboard("Database Objects", [all_rel_graphs]))
if self.has_extension(self.path_args[0], "pg_stat_kcache"):
block_graph.metrics.insert(
0, DatabaseOverviewMetricGroup.total_sys_hit)
block_graph.metrics.insert(
0, DatabaseOverviewMetricGroup.total_disk_read)
block_graph.color_scheme = ['#cb513a', '#65b9ac', '#73c03a']
sys_graphs = [
Graph(
"System resources (events per sec)",
url=
"https://powa.readthedocs.io/en/latest/stats_extensions/pg_stat_kcache.html",
metrics=[
DatabaseOverviewMetricGroup.majflts,
DatabaseOverviewMetricGroup.minflts,
# DatabaseOverviewMetricGroup.nswaps,
# DatabaseOverviewMetricGroup.msgsnds,
# DatabaseOverviewMetricGroup.msgrcvs,
# DatabaseOverviewMetricGroup.nsignals,
DatabaseOverviewMetricGroup.nvcsws,
DatabaseOverviewMetricGroup.nivcsws
])
]
graphs_dash.append(Dashboard("System resources", [sys_graphs]))
else:
block_graph.metrics.insert(
0, DatabaseOverviewMetricGroup.total_blks_read)
block_graph.color_scheme = ['#cb513a', '#73c03a']
if (self.has_extension(self.path_args[0], "pg_wait_sampling")):
metrics = None
if self.get_pg_version_num(self.path_args[0]) < 100000:
metrics = [
DatabaseWaitOverviewMetricGroup.count_lwlocknamed,
DatabaseWaitOverviewMetricGroup.count_lwlocktranche,
DatabaseWaitOverviewMetricGroup.count_lock,
DatabaseWaitOverviewMetricGroup.count_bufferpin
]
else:
metrics = [
DatabaseWaitOverviewMetricGroup.count_lwlock,
DatabaseWaitOverviewMetricGroup.count_lock,
DatabaseWaitOverviewMetricGroup.count_bufferpin,
DatabaseWaitOverviewMetricGroup.count_activity,
DatabaseWaitOverviewMetricGroup.count_client,
DatabaseWaitOverviewMetricGroup.count_extension,
DatabaseWaitOverviewMetricGroup.count_ipc,
DatabaseWaitOverviewMetricGroup.count_timeout,
DatabaseWaitOverviewMetricGroup.count_io
]
graphs_dash.append(
Dashboard("Wait Events", [[
Graph(
"Wait Events (per second)",
url=
"https://powa.readthedocs.io/en/latest/stats_extensions/pg_wait_sampling.html",
metrics=metrics)
]]))
self._dashboard.widgets.extend([
graphs,
[
Grid("Details for all queries",
toprow=[{
'merge': True
}, {
'name': 'Execution',
'merge': False,
'colspan': 3
}, {
'name': 'I/O Time',
'merge': False,
'colspan': 2
}, {
'name': 'Blocks',
'merge': False,
'colspan': 4,
}, {
'name': 'Temp blocks',
'merge': False,
'colspan': 2
}],
columns=[{
"name": "query",
"label": "Query",
"type": "query",
"url_attr": "url",
"max_length": 70
}],
metrics=ByQueryMetricGroup.all())
]
])
if self.has_extension(self.path_args[0], "pg_wait_sampling"):
self._dashboard.widgets.extend([[
Grid(
"Wait events for all queries",
url=
"https://powa.readthedocs.io/en/latest/stats_extensions/pg_wait_sampling.html",
columns=[{
"name": "query",
"label": "Query",
"type": "query",
"url_attr": "url",
"max_length": 70
}, {
"name": "event_type",
"label": "Event Type",
}, {
"name": "event",
"label": "Event",
}],
metrics=ByQueryWaitSamplingMetricGroup.all())
]])
self._dashboard.widgets.extend([[Wizard("Index suggestions")]])
return self._dashboard
def dashboard(self):
# This COULD be initialized in the constructor, but tornado < 3 doesn't
# call it
if getattr(self, '_dashboard', None) is not None:
return self._dashboard
block_graph = Graph(
"Block access in Bps",
metrics=[GlobalDatabasesMetricGroup.total_blks_hit],
color_scheme=None)
all_db_graphs = [
Graph("Query runtime per second (all databases)",
metrics=[
GlobalDatabasesMetricGroup.avg_runtime,
GlobalDatabasesMetricGroup.load,
GlobalDatabasesMetricGroup.calls
]), block_graph
]
graphs_dash = [Dashboard("General Overview", [all_db_graphs])]
graphs = [TabContainer("All databases", graphs_dash)]
# Add pg_stat_bgwriter graphs
bgw_graphs = [
[
Graph("Checkpointer scheduling",
metrics=[
GlobalBgwriterMetricGroup.checkpoints_timed,
GlobalBgwriterMetricGroup.checkpoints_req
]),
Graph("Checkpointer activity",
metrics=[
GlobalBgwriterMetricGroup.checkpoint_write_time,
GlobalBgwriterMetricGroup.checkpoint_sync_time,
GlobalBgwriterMetricGroup.buffers_checkpoint,
GlobalBgwriterMetricGroup.buffers_alloc
])
],
[
Graph("Background writer",
metrics=[
GlobalBgwriterMetricGroup.buffers_clean,
GlobalBgwriterMetricGroup.maxwritten_clean
]),
Graph("Backends",
metrics=[
GlobalBgwriterMetricGroup.buffers_backend,
GlobalBgwriterMetricGroup.buffers_backend_fsync
])
]
]
graphs_dash.append(Dashboard("Background Writer", bgw_graphs))
# Add powa_stat_all_relations graphs
all_rel_graphs = [
Graph("Access pattern",
metrics=[
GlobalAllRelMetricGroup.seq_scan,
GlobalAllRelMetricGroup.idx_scan,
GlobalAllRelMetricGroup.idx_ratio
]),
Graph("DML activity",
metrics=[
GlobalAllRelMetricGroup.n_tup_del,
GlobalAllRelMetricGroup.n_tup_hot_upd,
GlobalAllRelMetricGroup.n_tup_upd,
GlobalAllRelMetricGroup.n_tup_ins
]),
Graph("Vacuum activity",
metrics=[
GlobalAllRelMetricGroup.autoanalyze_count,
GlobalAllRelMetricGroup.analyze_count,
GlobalAllRelMetricGroup.autovacuum_count,
GlobalAllRelMetricGroup.vacuum_count
])
]
graphs_dash.append(Dashboard("Database Objects", [all_rel_graphs]))
if self.has_extension(self.path_args[0], "pg_stat_kcache"):
block_graph.metrics.insert(
0, GlobalDatabasesMetricGroup.total_sys_hit)
block_graph.metrics.insert(
0, GlobalDatabasesMetricGroup.total_disk_read)
block_graph.color_scheme = ['#cb513a', '#65b9ac', '#73c03a']
sys_graphs = [
Graph(
"System resources (events per sec)",
url=self.docs_stats_url + "pg_stat_kcache.html",
metrics=[
GlobalDatabasesMetricGroup.majflts,
GlobalDatabasesMetricGroup.minflts,
# GlobalDatabasesMetricGroup.nswaps,
# GlobalDatabasesMetricGroup.msgsnds,
# GlobalDatabasesMetricGroup.msgrcvs,
# GlobalDatabasesMetricGroup.nsignals,
GlobalDatabasesMetricGroup.nvcsws,
GlobalDatabasesMetricGroup.nivcsws
])
]
graphs_dash.append(Dashboard("System resources", [sys_graphs]))
else:
block_graph.metrics.insert(
0, GlobalDatabasesMetricGroup.total_blks_read)
block_graph.color_scheme = ['#cb513a', '#73c03a']
if (self.has_extension(self.path_args[0], "pg_wait_sampling")):
metrics = None
pg_version_num = self.get_pg_version_num(self.path_args[0])
# if we can't connect to the remote server, assume pg10 or above
if pg_version_num is None or pg_version_num < 100000:
metrics = [
GlobalWaitsMetricGroup.count_lwlocknamed,
GlobalWaitsMetricGroup.count_lwlocktranche,
GlobalWaitsMetricGroup.count_lock,
GlobalWaitsMetricGroup.count_bufferpin
]
else:
metrics = [
GlobalWaitsMetricGroup.count_lwlock,
GlobalWaitsMetricGroup.count_lock,
GlobalWaitsMetricGroup.count_bufferpin,
GlobalWaitsMetricGroup.count_activity,
GlobalWaitsMetricGroup.count_client,
GlobalWaitsMetricGroup.count_extension,
GlobalWaitsMetricGroup.count_ipc,
GlobalWaitsMetricGroup.count_timeout,
GlobalWaitsMetricGroup.count_io
]
graphs_dash.append(
Dashboard("Wait Events", [[
Graph("Wait Events (per second)",
url=self.docs_stats_url + "pg_wait_sampling.html",
metrics=metrics)
]]))
dashes = [
graphs,
[
Grid("Details for all databases",
columns=[{
"name": "datname",
"label": "Database",
"url_attr": "url"
}],
metrics=ByDatabaseMetricGroup.all())
]
]
if self.has_extension(self.path_args[0], "pg_wait_sampling"):
dashes.append([
Grid("Wait events for all databases",
url=self.docs_stats_url + "pg_wait_sampling.html",
columns=[{
"name": "datname",
"label": "Database",
"url_attr": "url"
}, {
"name": "event_type",
"label": "Event Type",
}, {
"name": "event",
"label": "Event",
}],
metrics=ByDatabaseWaitSamplingMetricGroup.all())
])
self._dashboard = Dashboard("All databases", dashes)
return self._dashboard