1PG_ACTIVITCYo(m1m)and line tool for PostgreSQL server activity monitorPiGn_gA.CTIVITY(1)
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6 pg_activity - Realtime PostgreSQL database server monitoring tool
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9 pg_activity [option..] [connection string]
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12 Command line tool for PostgreSQL server activity monitoring.
13 pg_activity must run on the same server as the instance and as the user
15 running the instance (or root) to show CPU, MEM, READ or WRITE columns
16 and other system information.
17 THE HEADER
19 The first line of the header displays PostgreSQL's version, the host
20 name, the connection string and the refresh rate.
21 The rest of the header displays the following information:
23 - Size: size of the database you are connected to - Growth in B/s;
25 - Mem.: percentage of memory used - memory used / memory available;
26 - Swap: percentage of swap used - swap used / swap available;
27 - Load: CPU load;
28 - TPS: transaction per second (sum of commit & rollback for all
29 databases / time elapsed since last snap);
30 - IO Max: the number of IO per second (aggregated data gathered with
31 the psutil library);
32 - Read: current Read throughput (aggregated data gathered with the
33 psutil library);
34 - Write: current Write throughput (aggregated data gathered with the
35 psutil library);
36 - Active connections: number of active connections;
37 - Duration mode: query, transaction or backend.
38 THE RUNNING QUERIES PANEL
40 The running queries panel shows all running queries, transactions or
41 backends (depending on the DURATION_MODE setting) which have lasted for
42 more than min duration seconds. It displays the following information:
43 - PID: process id of the backend which executes the query;
45 - DATABASE: database specified in the connection string;
46 - APP: application name specified in the connection string;
47 - USER: user name specified in the connection string;
48 - CLIENT: client address or "local" in case of linux socker connection;
49 - CPU%: percentage of CPU used by the backend as reported by the psutil
50 library;
51 - MEM%: percentage of memory used by the backend as reported by the
52 psutil library;
53 - READ/s: read thruput as reported by the psutil library;
54 - WRITE/s: write thruput as reported by the psutil library;
55 - TIME: time since the beginning of the query / transaction / backend
56 start depending on the DURATION_MODE currently in use;
57 - Waiting: for PostgreSQL 9.6+: a specific wait event or nothing.
58 Otherwise, a boolean indicating if we are waiting for a Lock;
59 - IOW: boolean indicating that the process is waiting for IO as
60 reported by the psutil library;
61 - state: state of the backend;
62 - Query: the query.
63 THE WAITING QUERIES PANNEL
65 The waiting queries view displays queries that are wainting for a lock.
66 It shows the following information:
67 - PID: process id of the backend which executes the query;
69 - DATABASE: database specified in the connection string;
70 - APP: application name specified in the connection string;
71 - USER: user name specified in the connection string;
72 - CLIENT: client address or "local" in case of linux socker connection;
73 - RELATION: the name of the relation being locked if applicable;
74 - TYPE: the type of lock;
75 - MODE: the mode of the lock;
76 - TIME+: the duration of the query, transaction or session depending on
77 the DURATION_MODE setting;
78 - state: the state of the transaction;
79 - Query: the query.
80 THE BLOCKING QUERIES PANNEL
82 The blocking queries view displays the queries that lock an object
83 which is requiered by another session. It shows following information:
84 - PID: process id of the backend which executes the query;
86 - DATABASE: database specified in the connection string;
87 - APP: application name specified in the connection string;
88 - USER: user name specified in the connection string;
89 - CLIENT: client address or "local" in case of linux socker connection;
90 - RELATION: the name of the relation being locked if applicable;
91 - TYPE: the type of lock;
92 - MODE: the mode of the lock;
93 - TIME+: the duration of the query, transaction or session depending on
94 the DURATION_MODE setting;
95 - Waiting: for PostgreSQL 9.6+: a specific wait event or nothing.
96 Otherwise, a boolean indicating if we are waiting for a Lock;
97 - state: the state of the transaction;
98 - Query: the query.
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101 -U USERNAME, --username=USERNAME
102 Database user name.
103 -p PORT, --port=PORT
105 Database server port.
106 -h HOSTNAME, --host=HOSTNAME
108 Database server host or socket directory.
109 -d DBNAME, --dbname=DBNAME
111 Database name to connect to.
112 --blocksize=BLOCKSIZE
114 Filesystem blocksize (default: 4096).
115 --rds
117 Enable support for AWS RDS.
118 --output=FILEPATH
120 Store running queries as CSV.
121 --no-db-size
123 Skip total size of DB.
124 -w DISPLAY_MODE, --query-display-mode=DISPLAY_MODE
126 Queries display mode. Values: 1-TRUNCATED, 2-FULL(default), 3-INDENTED
127 --duration-mode=DURATION_MODE
129 Duration mode. Values: 1-QUERY(default), 2-TRANSACTION, 3-BACKEND
130 --min-duration=SECONDS
132 Don't display queries with smaller than specified duration (in seconds).
133 --help
135 Show this help message and exit.
136 --version
138 Show program's version number and exit.
139
141 All the environnement variables supported by libpq (PostgreSQL's
142 query protocol) are supported by pg_activity.
143 See: https://www.postgresql.org/docs/current/libpq-envars.html
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147 --no-pid
148 Disable PID.
149 --no-database
151 Disable DATABASE.
152 --no-user
154 Disable USER.
155 --no-client
157 Disable CLIENT.
158 --no-cpu
160 Disable CPU%.
161 --no-mem
163 Disable MEM%.
164 --no-read
166 Disable READ/s.
167 --no-write
169 Disable WRITE/s.
170 --no-time
172 Disable TIME+.
173 --no-wait
175 Disable W.
176 --no-app-name
178 Disable App.
179
181 r Sort by READ/s, descending.
182 w Sort by WRITE/s, descending.
183 c Sort by CPU%, descending.
184 m Sort by MEM%, descending.
185 t Sort by TIME+, descending.
186 T Change duration mode: query, transaction, backend
187 Space Pause on/off.
188 v Change queries display mode: full, truncated, indented
189 UP / DOWN Scroll process list.
190 k / j Scroll process list.
191 q Quit
192 + Increase refresh time. Maximum value: 3s
193 - Decrease refresh time. Minimum Value: 1s
194 F1/1 Running queries monitoring.
195 F2/2 Waiting queries monitoring.
196 F3/3 Blocking queries monitoring.
197 h Help page.
198 R Refresh.
199 D Refresh database size.
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202 UP / k Move up the cursor.
203 DOWN / j Move down the cursor.
204 K Terminate the current backend/tagged backends.
205 C Cancel the current backend/tagged backends.
206 Space Tag or untag the process.
207 q Quit.
208 Other Back to activity.
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211 PGPASSWORD='mypassword' pg_activity -U pgadmin -h 127.0.0.1 --no-client
212 pg_activity -h /var/run/postgresql
214 pg_activity -h myserver -p 5433 -d nagios -U nagios
216pg_activity 2.2.1 2021-08-05 PG_ACTIVITY(1)