System Views
Warning
|
The system views are an experimental feature and can be changed in future releases. |
Ignite provides a number of built-in SQL views that contain information about cluster nodes and node metrics. The views are available in the SYS schema. See the Understanding Schemas page for the information on how to access a non-default schema.
Important
|
Limitations
|
Querying System Views
To query the system views using the SQLLine tool, connect to the SYS schema as follows:
./sqlline.sh -u jdbc:ignite:thin://127.0.0.1/SYS
If your node is running on a remote server, replace 127.0.0.1
with the IP address of the server.
Run a query:
-- get the list of nodes
select * from NODES;
-- view the CPU load as a percentage for a specific node
select CUR_CPU_LOAD * 100 from NODE_METRICS where NODE_ID = 'a1b77663-b37f-4ddf-87a6-1e2d684f3bae'
The same example using Java Thin Client:
ClientConfiguration cfg = new ClientConfiguration().setAddresses("127.0.0.1:10800");
try (IgniteClient igniteClient = Ignition.startClient(cfg)) {
// getting the id of the first node
UUID nodeId = (UUID) igniteClient.query(new SqlFieldsQuery("SELECT * from NODES").setSchema("SYS"))
.getAll().iterator().next().get(0);
double cpu_load = (Double) igniteClient
.query(new SqlFieldsQuery("select CUR_CPU_LOAD * 100 from NODE_METRICS where NODE_ID = ? ")
.setSchema("SYS").setArgs(nodeId.toString()))
.getAll().iterator().next().get(0);
System.out.println("node's cpu load = " + cpu_load);
} catch (ClientException e) {
System.err.println(e.getMessage());
} catch (Exception e) {
System.err.format("Unexpected failure: %s\n", e);
}
System views can also be queried through the Control Script system view command. Note that the mentioned above command result contains all columns of the requested system view. If filtering is necessary, it should be performed manually.
Examples of the use of Control Script system view command:
# get the list of nodes
control.sh --system-view NODES
# get the list of metrics from the node with the specific ID
control.sh --system-view NODE_METRICS --node-id a1b77663-b37f-4ddf-87a6-1e2d684f3bae
# get the list of nodes
control.bat --system-view NODES
# get the list of metrics from the node with the specific ID
control.bat --system-view NODE_METRICS --node-id a1b77663-b37f-4ddf-87a6-1e2d684f3bae
CACHES
Column | Type | Description |
---|---|---|
CACHE_NAME |
string |
Cache name |
CACHE_ID |
int |
Cache ID |
CACHE_TYPE |
string |
Cache type |
CACHE_MODE |
string |
Cache mode |
ATOMICITY_MODE |
string |
Atomicity mode |
CACHE_GROUP_NAME |
string |
Cache group name |
AFFINITY |
string |
toString representation of affinity function |
AFFINITY_MAPPER |
string |
toString representation of affinity mapper |
BACKUPS |
int |
backup count |
CACHE_GROUP_ID |
int |
cache group id |
CACHE_LOADER_FACTORY |
string |
toString representation of cache loader factory |
CACHE_STORE_FACTORY |
string |
toString representation of cache store factory |
CACHE_WRITER_FACTORY |
string |
toString representation of cache writer factory |
DATA_REGION_NAME |
string |
Data region name |
DEFAULT_LOCK_TIMEOUT |
long |
Lock timeout in milliseconds |
EVICTION_FILTER |
string |
toString representation of eviction filter |
EVICTION_POLICY_FACTORY |
string |
toString representation of eviction policy factory |
EXPIRY_POLICY_FACTORY |
string |
toString representation of expiry policy factory |
CONFLICT_RESOLVER |
string |
toString representation of cache conflict resolver |
INTERCEPTOR |
string |
toString representation of interceptor |
IS_COPY_ON_READ |
boolean |
Flag indicating whether a copy of the value stored in the on-heap cache |
IS_EAGER_TTL |
boolean |
Flag indicating whether expired cache entries will be eagerly removed from cache |
IS_ENCRYPTION_ENABLED |
boolean |
True if cache data encrypted |
IS_EVENTS_DISABLED |
boolean |
True if events disabled for this cache |
IS_INVALIDATE |
boolean |
True if values will be invalidated (nullified) upon commit in near cache |
IS_LOAD_PREVIOUS_VALUE |
boolean |
True if value should be loaded from store if it is not in the cache |
IS_MANAGEMENT_ENABLED |
boolean |
|
IS_NEAR_CACHE_ENABLED |
boolean |
True if near cache enabled |
IS_ONHEAP_CACHE_ENABLED |
boolean |
True if on heap cache enabled |
IS_READ_FROM_BACKUP |
boolean |
True if read operation should be performed from backup node |
IS_READ_THROUGH |
boolean |
True if read from third party storage enabled |
IS_SQL_ESCAPE_ALL |
boolean |
If true all the SQL table and field names will be escaped with double quotes |
IS_SQL_ONHEAP_CACHE_ENABLED |
boolean |
If true SQL on-heap cache is enabled. When enabled, Ignite will cache SQL rows as they are accessed by query engine. Rows are invalidated and evicted from cache when relevant cache entry is either changed or evicted. |
IS_STATISTICS_ENABLED |
boolean |
|
IS_STORE_KEEP_BINARY |
boolean |
Flag indicating that {@link CacheStore} implementation is working with binary objects instead of Java objects. |
IS_WRITE_BEHIND_ENABLED |
boolean |
Flag indicating whether Ignite should use write-behind behaviour for the cache store |
IS_WRITE_THROUGH |
boolean |
True if write to third party storage enabled |
MAX_CONCURRENT_ASYNC_OPERATIONS |
int |
Maximum number of allowed concurrent asynchronous operations. If 0 returned then number of concurrent asynchronous operations is unlimited |
MAX_QUERY_ITERATORS_COUNT |
int |
Maximum number of query iterators that can be stored. Iterators are stored to support query pagination when each page of data is sent to user’s node only on demand |
NEAR_CACHE_EVICTION_POLICY_FACTORY |
string |
toString representation of near cache eviction policy factory |
NEAR_CACHE_START_SIZE |
int |
Initial cache size for near cache which will be used to pre-create internal hash table after start. |
NODE_FILTER |
string |
toString representation of node filter |
PARTITION_LOSS_POLICY |
string |
toString representation of partition loss policy |
QUERY_DETAIL_METRICS_SIZE |
int |
size of queries detail metrics that will be stored in memory for monitoring purposes. If 0 then history will not be collected. |
QUERY_PARALLELISM |
int |
Hint to query execution engine on desired degree of parallelism within a single node |
REBALANCE_BATCH_SIZE |
int |
Size (in bytes) to be loaded within a single rebalance message |
REBALANCE_BATCHES_PREFETCH_COUNT |
int |
Number of batches generated by supply node at rebalancing start |
REBALANCE_DELAY |
long |
Rebalance delay in milliseconds |
REBALANCE_MODE |
string |
Rebalance mode |
REBALANCE_ORDER |
int |
Rebalance order |
REBALANCE_THROTTLE |
long |
Time in milliseconds to wait between rebalance messages to avoid overloading of CPU or network |
REBALANCE_TIMEOUT |
long |
Rebalance timeout in milliseconds |
SQL_INDEX_MAX_INLINE_SIZE |
int |
Index inline size in bytes |
SQL_ONHEAP_CACHE_MAX_SIZE |
int |
Maximum SQL on-heap cache. Measured in number of rows. When maximum size is reached oldest cached rows will be evicted. |
SQL_SCHEMA |
string |
Schema name |
TOPOLOGY_VALIDATOR |
string |
toString representation of topology validator |
WRITE_BEHIND_BATCH_SIZE |
int |
Maximum batch size for write-behind cache store operations |
WRITE_BEHIND_COALESCING |
boolean |
Write coalescing flag for write-behind cache store operations. Store operations (get or remove) with the same key are combined or coalesced to single, resulting operation to reduce pressure to underlying cache store |
WRITE_BEHIND_FLUSH_FREQUENCY |
long |
Frequency with which write-behind cache is flushed to the cache store in milliseconds |
WRITE_BEHIND_FLUSH_SIZE |
int |
Maximum size of the write-behind cache. If cache size exceeds this value, all cached items are flushed to the cache store and write cache is cleared |
WRITE_BEHIND_FLUSH_THREAD_COUNT |
int |
Number of threads that will perform cache flushing |
WRITE_SYNCHRONIZATION_MODE |
string |
Gets write synchronization mode |
CACHE_GROUPS
The CACHE_GROUPS view contains information about the cache groups.
Column | Data Type | Description |
---|---|---|
AFFINITY |
VARCHAR |
The string representation (as returned by the |
ATOMICITY_MODE |
VARCHAR |
The atomicity mode of the cache group. |
BACKUPS |
INT |
The number of backup partitions configured for the cache group. |
CACHE_COUNT |
INT |
The number of caches in the cache group. |
CACHE_GROUP_ID |
INT |
The ID of the cache group. |
CACHE_GROUP_NAME |
VARCHAR |
The name of the cache group. |
CACHE_MODE |
VARCHAR |
The cache mode. |
DATA_REGION_NAME |
VARCHAR |
The name of the data region. |
IS_SHARED |
BOOLEAN |
If this group contains more than one cache. |
NODE_FILTER |
VARCHAR |
The string representation (as returned by the |
PARTITION_LOSS_POLICY |
VARCHAR |
|
PARTITIONS_COUNT |
INT |
The number of partitions. |
REBALANCE_DELAY |
LONG |
|
REBALANCE_MODE |
VARCHAR |
|
REBALANCE_ORDER |
INT |
|
TOPOLOGY_VALIDATOR |
VARCHAR |
The string representation (as returned by the |
TASKS
This view exposes information about currently running compute tasks started by a node. For instance, let’s assume that an application started a compute task using the Ignite thick client and the task’s job was executed on one of the server nodes. In this case, the thick client will report statistics related to the task via this system view while the server node will be updating the thick client with task-related execution details.
NAME | TYPE | DESCRIPTION |
---|---|---|
ID |
UUID |
Task id |
SESSION_ID |
UUID |
Session ID |
TASK_NODE_ID |
UUID |
Task originating node id |
TASK_NAME |
string |
Task name |
TASK_CLASS_NAME |
string |
Task class name |
AFFINITY_PARTITION_ID |
int |
Cache partition id |
AFFINITY_CACHE_NAME |
string |
Cache name |
START_TIME |
long |
Start time |
END_TIME |
long |
End time |
EXEC_NAME |
string |
Thread pool name executing task |
INTERNAL |
boolean |
True if task is internal |
USER_VERSION |
string |
Task user version |
JOBS
This system view shows a list of compute jobs started by a node as part of a compute task.
To view the status of the compute task refer to the TASKS
system view.
NAME | TYPE | DESCRIPTION |
---|---|---|
ID |
UUID |
Job ID |
SESSION_ID |
UUID |
Job’s session ID. Note, |
ORIGIN_NODE_ID |
UUID |
The id of the node that started the job |
TASK_NAME |
string |
The name of the task |
TASK_CLASSNAME |
string |
Class name of the task |
AFFINITY_CACHE_IDS |
string |
IDs of one or more caches if the job is executed against one of the |
AFFINITY_PARTITION_ID |
int |
IDs of one or more partitions if the job is executed via one of the |
CREATE_TIME |
long |
Job’s creation time |
START_TIME |
long |
Job’s start time |
FINISH_TIME |
long |
Job’s finish time |
EXECUTOR_NAME |
string |
The name of the task’s executor |
IS_FINISHING |
boolean |
|
IS_INTERNAL |
boolean |
|
IS_STARTED |
boolean |
|
IS_TIMEDOUT |
boolean |
|
STATE |
string |
Possible values: |
SERVICES
AFFINITY_KEY | string | Affinity key value for service |
---|---|---|
CACHE_NAME |
string |
Cache name |
MAX_PER_NODE_COUNT |
int |
Maximum count of services instances per node |
NAME |
string |
Service name |
NAME |
TYPE |
DESCRIPTION |
NODE_FILTER |
string |
toString representation of node filter |
ORIGIN_NODE_ID |
UUID |
Originating node ID |
SERVICE_CLASS |
string |
Service class name |
SERVICE_ID |
UUID |
Service ID |
STATICALLY_CONFIGURED |
boolean |
True is service statically configured |
TOTAL_COUNT |
int |
Total count of service instances |
TRANSACTIONS
This view exposes information about currently running transactions.
NAME | TYPE | DESCRIPTION |
---|---|---|
ORIGINATING_NODE_ID |
UUID |
|
STATE |
string |
|
XID |
UUID |
|
LABEL |
string |
|
START_TIME |
long |
|
ISOLATION |
string |
|
CONCURRENCY |
string |
|
KEYS_COUNT |
int |
|
CACHE_IDS |
string |
|
COLOCATED |
boolean |
|
DHT |
boolean |
|
DURATION |
long |
|
IMPLICIT |
boolean |
|
IMPLICIT_SINGLE |
boolean |
|
INTERNAL |
boolean |
|
LOCAL |
boolean |
|
LOCAL_NODE_ID |
UUID |
|
NEAR |
boolean |
|
ONE_PHASE_COMMIT |
boolean |
|
OTHER_NODE_ID |
UUID |
|
SUBJECT_ID |
UUID |
|
SYSTEM |
boolean |
|
THREAD_ID |
long |
|
TIMEOUT |
long |
|
TOP_VER |
string |
NODES
The NODES view contains information about the cluster nodes.
Column | Data Type | Description |
---|---|---|
IS_LOCAL |
BOOLEAN |
Whether the node is local. |
ADDRESSES |
VARCHAR |
The addresses of the node. |
CONSISTENT_ID |
VARCHAR |
Node’s consistent ID. |
HOSTNAMES |
VARCHAR |
The host names of the node. |
IS_CLIENT |
BOOLEAN |
Indicates whether the node is a client. |
NODE_ID |
UUID |
Node ID. |
NODE_ORDER |
INT |
Node order within the topology. |
VERSION |
VARCHAR |
Node version. |
NODE_ATTRIBUTES
The NODE_ATTRIBUTES view contains the attributes of all nodes.
Column | Data Type | Description |
---|---|---|
NODE_ID |
UUID |
Node ID. |
NAME |
VARCHAR |
Attribute name. |
CONFIGURATION
The CONFIGURATION view contains the configuration properties of node.
Column | Data Type | Description |
---|---|---|
NAME |
VARCHAR |
Configuration property name. |
VALUE |
VARCHAR |
Configuration property value. |
BASELINE_NODES
The BASELINE_NODES view contains information about the nodes that are part of the current baseline topology.
Column | Data Type | Description |
---|---|---|
CONSISTENT_ID |
VARCHAR |
Node consistent ID. |
ONLINE |
BOOLEAN |
Indicates whether the node is up and running. |
BASELINE_NODE_ATTRIBUTES
The BASELINE_NODE_ATTRIBUTES view exposes node attributes fixed at a moment when a current baseline topology was set.
Column | Data Type | Description |
---|---|---|
NODE_CONSISTENT_ID |
VARCHAR |
Node consistent ID. |
NAME |
VARCHAR |
Name of the node attribute. |
VALUE |
VARCHAR |
Attribute value. |
CLIENT_CONNECTIONS
This view exposes information about currently opened client connections: JDBC, ODBC, Thin clients.
NAME | TYPE | DESCRIPTION |
---|---|---|
CONNECTION_ID |
long |
ID of the connection |
LOCAL_ADDRESS |
IP |
address IP address of the local node |
REMOTE_ADDRESS |
IP |
address IP address of the remote node |
TYPE |
string |
Type of the connection |
USER |
string |
User name |
VERSION |
string |
Protocol version |
CLIENT_CONNECTION_ATTRIBUTES
The CLIENT_CONNECTION_ATTRIBUTES view exposes user defined attributes of client connections (thin, JDBC, ODBC). Attributes for the connection are provided by clients. For example, attributes for java thin client can be specified using ClientConfiguration.setUserAttributes
method.
Column | Data Type | Description |
---|---|---|
CONNECTION_ID |
long |
ID of the connection |
NAME |
VARCHAR |
Name of the attribute |
VALUE |
VARCHAR |
Attribute value |
STRIPED_THREADPOOL_QUEUE
This view exposes information about tasks waiting for the execution in the system striped thread pool.
NAME | TYPE | DESCRIPTION |
---|---|---|
DESCRIPTION |
string |
toString representation of the task |
STRIPE_INDEX |
int |
Index of the stripe thread |
TASK_NAME |
string |
Class name of the task |
THREAD_NAME |
string |
Name of the stripe thread |
DATASTREAM_THREADPOOL_QUEUE
This view exposes information about tasks waiting for the execution in the data streamer stripped thread pool.
NAME | TYPE | DESCRIPTION |
---|---|---|
DESCRIPTION |
string |
toString representation of the task |
STRIPE_INDEX |
int |
Index of the stripe thread |
TASK_NAME |
string |
Class name of the task |
THREAD_NAME |
string |
Name of the stripe thread |
SCAN_QUERIES
This view exposes information about currently running scan queries.
NAME | TYPE | DESCRIPTION |
---|---|---|
CACHE_GROUP_ID |
int |
Cache group ID |
CACHE_GROUP_NAME |
string |
Cache group name |
CACHE_ID |
int |
Cache ID |
CACHE_NAME |
string |
Cache name |
CANCELED |
boolean |
True if canceled |
DURATION |
long |
Query duration |
FILTER |
string |
toString representation of filter |
KEEP_BINARY |
boolean |
True if keepBinary enabled |
LOCAL |
boolean |
True if query local only |
ORIGIN_NODE_ID |
UUID |
Node id started query |
PAGE_SIZE |
int |
Page size |
PARTITION |
int |
Query partition ID |
QUERY_ID |
long |
Query ID |
START_TIME |
long |
Query start time |
SUBJECT_ID |
UUID |
User ID started query |
TASK_NAME |
string |
|
TOPOLOGY |
string |
Topology version |
TRANSFORMER |
string |
toString representation of transformer |
CONTINUOUS_QUERIES
This view exposes information about currently running continuous queries.
NAME | TYPE | DESCRIPTION |
---|---|---|
AUTO_UNSUBSCRIBE |
boolean |
True if query should be stopped when node disconnected or originating node left |
BUFFER_SIZE |
int |
Event batch buffer size |
CACHE_NAME |
string |
Cache name |
DELAYED_REGISTER |
boolean |
True if query would be started when corresponding cache started |
INTERVAL |
long |
Notify interval |
IS_EVENTS |
boolean |
True if used for subscription to remote events |
IS_MESSAGING |
boolean |
True if used for subscription to messages. |
IS_QUERY |
boolean |
True if user started continuous query. |
KEEP_BINARY |
boolean |
True if keepBinary enabled |
LAST_SEND_TIME |
long |
Last time event batch sent to query originating node |
LOCAL_LISTENER |
string |
toString representation of local listener |
LOCAL_TRANSFORMED_LISTENER |
string |
toString representation of local transformed listener |
NODE_ID |
UUID |
Originating node id |
NOTIFY_EXISTING |
boolean |
True if listener should be notified about existing entries |
OLD_VALUE_REQUIRED |
boolean |
True if old entry value should be included in event |
REMOTE_FILTER |
string |
toString representation of remote filter |
REMOTE_TRANSFORMER |
string |
toString representation of remote transformer |
ROUTINE_ID |
UUID |
Query ID |
TOPIC |
string |
Query topic name |
SQL_QUERIES
This view exposes information about currently running SQL queries.
NAME | TYPE | DESCRIPTION |
---|---|---|
QUERY_ID |
UUID |
Query ID |
SQL |
string |
Query text |
ORIGIN_NODE_ID |
UUID |
Node that started query |
START_TIME |
date |
Query start time |
DURATION |
long |
Query execution duration |
INITIATOR_ID |
string |
User defined query initiator ID |
LOCAL |
boolean |
True if local only |
SCHEMA_NAME |
string |
Schema name |
SUBJECT_ID |
UUID |
The subject ID of the entity that initiated the query |
SQL_QUERIES_HISTORY
NAME | TYPE | DESCRIPTION |
---|---|---|
SCHEMA_NAME |
string |
Schema name |
SQL |
string |
Query text |
LOCAL |
boolean |
True if local only |
EXECUTIONS |
long |
Count of executions |
FAILURES |
long |
Count of failures |
DURATION_MIN |
long |
Minimal duration of execution |
DURATION_MAX |
long |
Maximum duration of execution |
LAST_START_TIME |
date |
Last execution date |
SCHEMAS
This view exposes information about SQL schemas.
NAME | TYPE | DESCRIPTION |
---|---|---|
NAME |
string |
Name of the schema |
PREDEFINED |
boolean |
If true schema is predefined |
NODE_METRICS
The NODE_METRICS view provides various metrics about the state of nodes, resource consumption and other metrics.
Column | Data Type | Description |
---|---|---|
NODE_ID |
UUID |
Node ID. |
LAST_UPDATE_TIME |
TIMESTAMP |
Last time the metrics were updated. |
MAX_ACTIVE_JOBS |
INT |
Maximum number of concurrent jobs this node ever had at one time. |
CUR_ACTIVE_JOBS |
INT |
Number of currently active jobs running on the node. |
AVG_ACTIVE_JOBS |
FLOAT |
Average number of active jobs concurrently executing on the node. |
MAX_WAITING_JOBS |
INT |
Maximum number of waiting jobs this node ever had at one time. |
CUR_WAITING_JOBS |
INT |
Number of queued jobs currently waiting to be executed. |
AVG_WAITING_JOBS |
FLOAT |
Average number of waiting jobs this node ever had at one time. |
MAX_REJECTED_JOBS |
INT |
Maximum number of jobs rejected at once during a single collision resolution operation. |
CUR_REJECTED_JOBS |
INT |
Number of jobs rejected as a result of the most recent collision resolution operation. |
AVG_REJECTED_JOBS |
FLOAT |
Average number of jobs this node rejected as a result of collision resolution operations. |
TOTAL_REJECTED_JOBS |
INT |
Total number of jobs this node has rejected as a result of collision resolution operations since the node startup. |
MAX_CANCELED_JOBS |
INT |
Maximum number of cancelled jobs this node ever had running concurrently. |
CUR_CANCELED_JOBS |
INT |
Number of cancelled jobs that are still running. |
AVG_CANCELED_JOBS |
FLOAT |
Average number of cancelled jobs this node ever had running concurrently. |
TOTAL_CANCELED_JOBS |
INT |
Number of jobs cancelled since the node startup. |
MAX_JOBS_WAIT_TIME |
TIME |
Maximum time a job ever spent waiting in a queue before being executed. |
CUR_JOBS_WAIT_TIME |
TIME |
Longest wait time among the jobs that are currently waiting for execution. |
AVG_JOBS_WAIT_TIME |
TIME |
Average time jobs spend in the queue before being executed. |
MAX_JOBS_EXECUTE_TIME |
TIME |
Maximum job execution time. |
CUR_JOBS_EXECUTE_TIME |
TIME |
Longest time a current job has been executing for. |
AVG_JOBS_EXECUTE_TIME |
TIME |
Average job execution time on this node. |
TOTAL_JOBS_EXECUTE_TIME |
TIME |
Total time all finished jobs took to execute on this node since the node startup. |
TOTAL_EXECUTED_JOBS |
INT |
Total number of jobs handled by the node since the node startup. |
TOTAL_EXECUTED_TASKS |
INT |
Total number of tasks handled by the node. |
TOTAL_BUSY_TIME |
TIME |
Total time this node spent executing jobs. |
TOTAL_IDLE_TIME |
TIME |
Total time this node spent idling (not executing any jobs). |
CUR_IDLE_TIME |
TIME |
Time this node has spent idling since executing the last job. |
BUSY_TIME_PERCENTAGE |
FLOAT |
Percentage of job execution vs idle time. |
IDLE_TIME_PERCENTAGE |
FLOAT |
Percentage of idle vs job execution time. |
TOTAL_CPU |
INT |
Number of CPUs available to the Java Virtual Machine. |
CUR_CPU_LOAD |
DOUBLE |
Percentage of CPU usage expressed as a fraction in the range [0, 1]. |
AVG_CPU_LOAD |
DOUBLE |
Average percentage of CPU usage expressed as a fraction in the range [0, 1]. |
CUR_GC_CPU_LOAD |
DOUBLE |
Average time spent in GC since the last update of the metrics. By default, metrics are updated every 2 seconds. |
HEAP_MEMORY_INIT |
LONG |
Amount of heap memory in bytes that the JVM initially requests from the operating system for memory management. Shows |
HEAP_MEMORY_USED |
LONG |
Current heap size that is used for object allocation. The heap consists of one or more memory pools. This value is the sum of used heap memory values of all heap memory pools. |
HEAP_MEMORY_COMMITED |
LONG |
Amount of heap memory in bytes that is committed for the JVM to use. This amount of memory is guaranteed for the JVM to use. The heap consists of one or more memory pools. This value is the sum of committed heap memory values of all heap memory pools. |
HEAP_MEMORY_MAX |
LONG |
Maximum amount of heap memory in bytes that can be used for memory management. The column displays |
HEAP_MEMORY_TOTAL |
LONG |
Total amount of heap memory in bytes. The column displays |
NONHEAP_MEMORY_INIT |
LONG |
Amount of non-heap memory in bytes that the JVM initially requests from the operating system for memory management. The column displays |
NONHEAP_MEMORY_USED |
LONG |
Current non-heap memory size that is used by Java VM. The non-heap memory consists of one or more memory pools. This value is the sum of used non-heap memory values of all non-heap memory pools. |
NONHEAP_MEMORY_COMMITED |
LONG |
Amount of non-heap memory in bytes that is committed for the JVM to use. This amount of memory is guaranteed for the JVM to use. The non-heap memory consists of one or more memory pools. This value is the sum of committed non-heap memory values of all non-heap memory pools. |
NONHEAP_MEMORY_MAX |
LONG |
Returns the maximum amount of non-heap memory in bytes that can be used for memory management. The column displays |
NONHEAP_MEMORY_TOTAL |
LONG |
Total amount of non-heap memory in bytes that can be used for memory management. The column displays |
UPTIME |
TIME |
Uptime of the JVM. |
JVM_START_TIME |
TIMESTAMP |
Start time of the JVM. |
NODE_START_TIME |
TIMESTAMP |
Start time of the node. |
LAST_DATA_VERSION |
LONG |
In-Memory Data Grid assigns incremental versions to all cache operations. This column contains the latest data version on the node. |
CUR_THREAD_COUNT |
INT |
Number of live threads including both daemon and non-daemon threads. |
MAX_THREAD_COUNT |
INT |
Maximum live thread count since the JVM started or peak was reset. |
TOTAL_THREAD_COUNT |
LONG |
Total number of threads started since the JVM started. |
CUR_DAEMON_THREAD_COUNT |
INT |
Number of live daemon threads. |
SENT_MESSAGES_COUNT |
INT |
Number of node communication messages sent. |
SENT_BYTES_COUNT |
LONG |
Amount of bytes sent. |
RECEIVED_MESSAGES_COUNT |
INT |
Number of node communication messages received. |
RECEIVED_BYTES_COUNT |
LONG |
Amount of bytes received. |
OUTBOUND_MESSAGES_QUEUE |
INT |
Outbound messages queue size. |
TABLES
The TABLES view contains information about the SQL tables.
Column | Data Type | Description |
---|---|---|
AFFINITY_KEY_COLUMN |
string |
Affinity key column name |
CACHE_ID |
int |
Cache id for the table |
CACHE_NAME |
string |
Cache name for the table |
IS_INDEX_REBUILD_IN_PROGRESS |
boolean |
True if some index rebuild for this table in progress |
KEY_ALIAS |
string |
Key column alias |
KEY_TYPE_NAME |
string |
Key type name |
SCHEMA_NAME |
string |
Schema name of the table |
TABLE_NAME |
string |
Name of the table |
VALUE_ALIAS |
string |
Value column alias |
VALUE_TYPE_NAME |
string |
Value type name |
TABLE_COLUMNS
This view exposes information about SQL table columns.
NAME | TYPE | DESCRIPTION |
---|---|---|
AFFINITY_COLUMN |
boolean |
True if column affinity key. |
AUTO_INCREMENT |
boolean |
True if auto incremented |
COLUMN_NAME |
string |
Column name |
DEFAULT_VALUE |
string |
Default column value |
NULLABLE |
boolean |
True if nullable |
PK |
boolean |
True if primary key |
PRECISION |
int |
Column precision |
SCALE |
int |
Column scale |
SCHEMA_NAME |
string |
Schema name |
TABLE_NAME |
string |
Table name |
TYPE |
string |
Column type |
VIEWS
This view exposes information about SQL views.
NAME | TYPE | DESCRIPTION |
---|---|---|
NAME |
string |
Name |
SCHEMA |
string |
Schema |
DESCRIPTION |
string |
Description |
VIEW_COLUMNS
This view exposes information about SQL views columns.
NAME | TYPE | DESCRIPTION |
---|---|---|
COLUMN_NAME |
string |
Name of the column |
DEFAULT_VALUE |
string |
Column default value |
NULLABLE |
boolean |
True if column nullable |
PRECISION |
int |
Column precision |
SCALE |
int |
Column scale |
SCHEMA_NAME |
string |
Name of the view |
TYPE |
string |
Column type |
VIEW_NAME |
string |
Name of the view |
INDEXES
The INDEXES view contains information about SQL indexes.
Column | Data Type | Description |
---|---|---|
INDEX_NAME |
string |
Name of the index |
INDEX_TYPE |
string |
Type of the index |
COLUMNS |
string |
Columns included in index |
SCHEMA_NAME |
string |
Schema name |
TABLE_NAME |
string |
Table name |
CACHE_NAME |
string |
Cache name |
CACHE_ID |
int |
Cache ID |
INLINE_SIZE |
int |
Inline size in bytes |
IS_PK |
boolean |
True if primary key index |
IS_UNIQUE |
boolean |
True if unique index |
PAGE_LISTS
The page list is a data structure used to store a list of partially free data pages (free lists) and fully free allocated pages (reuse lists). The purpose of the free lists and reuse lists is to quickly locate a page with enough free space to save an entry or to determine that no such page exists and a new page should be allocated. The page lists are organized in buckets. Each bucket group references pages with about the same size of a free space.
If Ignite persistence is enabled, the page lists are created for each partition of each cache group. To view such page lists
use the CACHE_GROUP_PAGE_LISTS
system view. If Ignite persistence is disabled, the page lists are created for each data region.
In this case, the DATA_REGION_PAGE_LISTS
system view needs to used. These views contain information about each bucket
of each page list that is useful to understand how much data can be inserted into a cache without allocating new pages
and also helps to detect skews in page lists utilization.
CACHE_GROUP_PAGE_LISTS
Column | Data type | Description |
---|---|---|
CACHE_GROUP_ID |
int |
Cache group ID |
PARTITION_ID |
int |
Partition ID |
NAME |
string |
Page list name |
BUCKET_NUMBER |
int |
Bucket number |
BUCKET_SIZE |
long |
Count of pages in the bucket |
STRIPES_COUNT |
int |
Count of stripes used by this bucket. Stripes are used to avoid contention. |
CACHED_PAGES_COUNT |
int |
Count of pages in an on-heap page list cache for this bucket. |
PAGE_FREE_SPACE |
int |
Free space (in bytes) available to use for each page in this bucket. |
DATA_REGION_PAGE_LISTS
Column | Data type | Description |
---|---|---|
NAME |
string |
Page list name |
BUCKET_NUMBER |
int |
Bucket number |
BUCKET_SIZE |
long |
Count of pages in the bucket |
STRIPES_COUNT |
int |
Count of stripes used by this bucket. Stripes are used to avoid contention. |
CACHED_PAGES_COUNT |
int |
Count of pages in an on-heap page list cache for this bucket. |
PAGE_FREE_SPACE |
int |
Free space (in bytes) available to use for each page in this bucket. |
PARTITION_STATES
This view exposes information about the distribution of cache group partitions across cluster nodes.
Column | Data type | Description |
---|---|---|
CACHE_GROUP_ID |
int |
Cache group ID |
PARTITION_ID |
int |
Partition ID |
NODE_ID |
UUID |
Node ID |
STATE |
string |
Partition state. Possible states: MOVING - partition is being loaded from another node to this node; OWNING - this node is either a primary or backup owner; RENTING - this node is neither primary nor back up owner (is being currently evicted); EVICTED - partition has been evicted; LOST - partition state is invalid, the partition should not be used. |
IS_PRIMARY |
boolean |
Primary partition flag |
BINARY_METADATA
This view exposes information about all available binary types.
Column | Data type | Description |
---|---|---|
TYPE_ID |
int |
Type ID |
TYPE_NAME |
string |
Type name |
AFF_KEY_FIELD_NAME |
string |
Affinity key field name |
FIELDS_COUNT |
int |
Fields count |
FIELDS |
string |
Recorded object fields |
SCHEMAS_IDS |
string |
Schema IDs registered for this type |
IS_ENUM |
boolean |
Whether this is enum type |
METASTORAGE
This view exposes the contents of the metastorage cache.
Column | Data type | Description |
---|---|---|
NAME |
string |
Name |
VALUE |
string |
String or raw binary (if data could not be deserialized for some reason) representation of an element |
DISTRIBUTED_METASTORAGE
This view exposes the contents of the distributed metastorage cache.
Column | Data type | Description |
---|---|---|
NAME |
string |
Name |
VALUE |
string |
String or raw binary (if data could not be deserialized for some reason) representation of an element |
DS_QUEUES
This view exposes the list of IgniteQueue
.
Note, queue will be shown on the non parent node only after initial usage on that node.
Column | Data type | Description |
---|---|---|
ID |
UUID |
ID |
NAME |
string |
Data structure name |
CAPACITY |
int |
Capacity |
SIZE |
int |
Current size |
BOUNDED |
boolean |
|
COLLOCATED |
boolean |
|
GROUP_NAME |
string |
Cache group name to store data structure |
GROUP_ID |
int |
Cache group id to store data structure |
REMOVED |
boolean |
|
DS_SETS
This view exposes the list of IgniteSet
.
Note, set will be shown on the non parent node only after initial usage on that node.
Column | Data type | Description |
---|---|---|
ID |
UUID |
ID |
NAME |
string |
Data structure name |
SIZE |
int |
Current size |
COLLOCATED |
boolean |
|
GROUP_NAME |
string |
Cache group name to store data structure |
GROUP_ID |
int |
Cache group id to store data structure |
REMOVED |
boolean |
|
DS_ATOMICSEQUENCES
This view exposes the list of IgniteAtomicSequence
.
Note, atomicsequence will be shown on the non parent node only after initial usage on that node.
Column | Data type | Description |
---|---|---|
NAME |
string |
Data structure name |
VALUE |
long |
Current sequence value |
BATCH_SIZE |
long |
Local batch size |
GROUP_NAME |
string |
Cache group name to store data structure |
GROUP_ID |
int |
Cache group id to store data structure |
REMOVED |
boolean |
|
DS_ATOMICLONGS
This view exposes the list of IgniteAtomicLong
.
Note, atomiclong will be shown on the non parent node only after initial usage on that node.
Column | Data type | Description |
---|---|---|
NAME |
string |
Data structure name |
VALUE |
long |
Current value |
GROUP_NAME |
string |
Cache group name to store data structure |
GROUP_ID |
int |
Cache group id to store data structure |
REMOVED |
boolean |
|
DS_ATOMICREFERENCES
This view exposes the list of IgniteAtomicReference
.
Note, atomicreference will be shown on the non parent node only after initial usage on that node.
Column | Data type | Description |
---|---|---|
NAME |
string |
Data structure name |
VALUE |
string |
Current value |
GROUP_NAME |
string |
Cache group name to store data structure |
GROUP_ID |
int |
Cache group id to store data structure |
REMOVED |
boolean |
|
DS_ATOMICSTAMPED
This view exposes the list of IgniteAtomicStamped
.
Note, atomicstamped will be shown on the non parent node only after initial usage on that node.
Column | Data type | Description |
---|---|---|
NAME |
string |
Data structure name |
VALUE |
string |
Current value |
STAMP |
string |
Current stamp value |
GROUP_NAME |
string |
Cache group name to store data structure |
GROUP_ID |
int |
Cache group id to store data structure |
REMOVED |
boolean |
|
DS_COUNTDOWNLATCHES
This view exposes the list of IgniteCountDownLatch
.
Note, latch will be shown on the non parent node only after initial usage on that node.
Column | Data type | Description |
---|---|---|
NAME |
string |
Data structure name |
COUNT |
int |
Current count |
INITIAL_COUT |
int |
Initial count |
AUTO_DELETE |
boolean |
True to automatically delete the latch from a cache when its count reaches zero |
GROUP_NAME |
string |
Cache group name to store data structure |
GROUP_ID |
int |
Cache group id to store data structure |
REMOVED |
boolean |
|
DS_SEMAPHORES
This view exposes the list of IgniteSemaphore
.
Note, semaphores will be shown on the non parent nodes only after initial usage on that node.
Column | Data type | Description |
---|---|---|
NAME |
string |
Data structure name |
AVAILABLE_PERMITS |
long |
Number of permits available |
HAS_QUEUED_THREADS |
boolean |
|
QUEUE_LENGTH |
int |
The estimated number of nodes waiting for this lock |
FAILOVER_SAFE |
boolean |
|
BROKEN |
boolean |
|
GROUP_NAME |
string |
Cache group name to store data structure |
GROUP_ID |
int |
Cache group id to store data structure |
REMOVED |
boolean |
|
DS_REENTRANTLOCKS
This view exposes the contents of IgniteLock
.
Note, lock will be shown on the non parent node only after initial usage on that node.
Column | Data type | Description |
---|---|---|
NAME |
string |
Data structure name |
LOCKED |
boolean |
|
HAS_QUEUED_THREADS |
boolean |
|
FAILOVER_SAFE |
boolean |
|
FAIR |
boolean |
|
BROKEN |
boolean |
|
GROUP_NAME |
string |
Cache group name to store data structure |
GROUP_ID |
int |
Cache group id to store data structure |
REMOVED |
boolean |
|
STATISTICS_CONFIGURATION
The STATISTICS_CONFIGURATION view contains information about SQL statistics configuration.
Column | Data Type | Description |
---|---|---|
SCHEMA |
VARCHAR |
Schema name. |
TYPE |
VARCHAR |
Object type. |
NAME |
VARCHAR |
Object name. |
COLUMN |
VARCHAR |
Column name. |
MAX_PARTITION_OBSOLESCENCE_PERCENT |
TINYINT |
Maximum percentage of obsolescent rows in statistics. See the SQL Statistics page for more details. |
MANUAL_NULLS |
BIGINT |
If not null - overrided number of null values. |
MANUAL_DISTINCT |
BIGINT |
If not null - overrided number of distinct values. |
MANUAL_TOTAL |
BIGINT |
If not null - overrided total number of values. |
MANUAL_SIZE |
INT |
If not null - overrided average size of non null values in column. |
VERSION |
BIGINT |
Configuration version. |
STATISTICS_LOCAL_DATA
The STATISTICS_LOCAL_DATA view contains SQL statistics for locally managed (or stored) data. This view is node-specific, so each node has an instance of the view that contains information about its local data statistics.
Column | Data Type | Description |
---|---|---|
SCHEMA |
VARCHAR |
Schema name. |
TYPE |
VARCHAR |
Object type. |
NAME |
VARCHAR |
Object name. |
COLUMN |
VARCHAR |
Column name. |
ROWS_COUNT |
BIGINT |
Count of column rows. |
DISTINCT |
BIGINT |
Number of unique non-null values. |
NULLS |
BIGINT |
Number of null values. |
TOTAL |
BIGINT |
Total number of values in column. |
SIZE |
INTEGER |
Average value size in bytes. |
VERSION |
BIGINT |
Statistics version. |
LAST_UPDATE_TIME |
VARCHAR |
Maximum time of all partition statistics which was used to generate local one. |
STATISTICS_PARTITION_DATA
The STATISTICS_PARTITION_DATA view contains information about SQL statistics on every partition data stored on a local node.
Column | Data Type | Description |
---|---|---|
SCHEMA |
VARCHAR |
Schema name. |
TYPE |
VARCHAR |
Object type. |
NAME |
VARCHAR |
Object name. |
COLUMN |
VARCHAR |
Column name. |
PARTITION |
INTEGER |
Partition number. |
ROWS_COUNT |
BIGINT |
Count of column rows. |
UPDATE_COUNTER |
BIGINT |
Partition counter update when statistics are collected. |
DISTINCT |
BIGINT |
Number of unique non-null values. |
NULLS |
BIGINT |
Number of null values. |
TOTAL |
BIGINT |
Total number of values in column. |
SIZE |
INTEGER |
Average value size in bytes. |
VERSION |
BIGINT |
Statistics version. |
LAST_UPDATE_TIME |
VARCHAR |
Maximum time of all partition statistics which was used to generate local one. |
SNAPSHOT
The SNAPSHOT view exposes information about local snapshots.
Column | Data Type | Description |
---|---|---|
NAME |
VARCHAR |
Snapshot name. |
CONSISTENT_ID |
VARCHAR |
Consistent ID of a node to which snapshot data relates. |
BASELINE_NODES |
VARCHAR |
Baseline nodes affected by the snapshot. |
CACHE_GROUPS |
VARCHAR |
Cache group names that were included in the snapshot. |
SNAPSHOT_RECORD_SEGMENT |
BIGINT |
Index of WAL segment containing snapshot’s WAL record. |
INCREMENT_INDEX |
INTEGER |
Incremental snapshot index. |
TYPE |
VARCHAR |
Type of snapshot - full or incremental. |
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