Destinations Status Page
Use this page to monitor or manage topics, queues, and maps that have been created by client programs. Topics, queues, and maps appear on separate tabs. See Destination Concepts for background information.
Topics Tab
This tab lists all durable subscriptions on topics.
Click a row to view the details page for a durable. See Topic Durable Details Page.
| Field | Description |
|---|---|
| Name |
The name of the destination as specified by the client program. Note: For lastvalue subscriptions, the last element is replaced by the asterisk wildcard (*).
|
| Pending Msgs | The number of messages in the durable that have not yet been acknowledged by a consumer. |
| Pending Size | The total size of messages (in bytes) in the durable that have not yet been acknowledged by a consumer. |
| Subscribers | The number of subscribers on the durable currently connected to the persistence cluster. |
| Msg/s In | Inbound message rate for the durable. |
| Msg/s Out | Outbound message rate for the durable, summed across all consumers. |
| Store | The persistence store to which the topic belongs. |
| Durable |
The name of the durable as specified by the client program. Note: If the client program did not specify a durable name, a randomized name will display, prefixed by “_ephm”.
|
| Action | Description |
|---|---|
| Delete Topic |
Delete all durable subscriptions for the topic. This will also discard all pending messages for all durables on the topic. |
| Rewind Topic |
Rewind all durable subscriptions for the topic. This action has no effect for lastvalue subscriptions. All client programs must close their subscribers on the topic before you rewind the topic. When message retention is enabled, and a subscriber acknowledges a message, the message is not deleted until the retention time elapses. Rewinding a subscription will make messages that were acknowledged, but not yet deleted, available for consumption once again. This action is only available if message retention is enabled. |
| Purge Topic | Discard all pending messages for all durable subscriptions on the topic. |
| Delete Durable |
Delete the selected durable subscription. Other durables on the topic are not affected. This will also discard all pending messages for the selected durable. |
| Rewind Durable |
Rewind the selected durable subscription. Other durables on the topic are not affected. This action has no effect for lastvalue subscriptions. All client programs must close their subscribers on the durable before you rewind the durable. When message retention is enabled, and a subscriber acknowledges a message, the message is not deleted until the retention time elapses. Rewinding a subscription will make messages that were acknowledged, but not yet deleted, available for consumption once again. This action is only available if message retention is enabled. |
| Purge Durable | Discard all pending messages for the selected durable subscription. Other durables on the topic are not affected. |
Topic Durable Details Page
This page displays details about a specific durable subscription on a topic.
| Field | Description |
|---|---|
| Total Message Count |
The total number of messages stored by the durable. If message retention is disabled, this number is the same as “Pending Message Count”. If message retention is enabled, this number will include messages acknowledged by consumers, but not yet deleted. |
| Total Message Size |
The total size of messages stored by the durable. If message retention is disabled, this number is the same as “Pending Message Size”. If message retention is enabled, this number will include messages acknowledged by consumers, but not yet deleted. |
| Pending Message Count | The number of messages in a durable that have not yet been acknowledged by a consumer. |
| Pending Message Size | The total size of messages in a durable that have not yet been acknowledged by a consumer. |
| Swapped Messages |
If message swapping is enabled, the number of messages currently held in memory for the durable. If message swapping is disabled, this value is zero. |
| Swapped Message Size |
If message swapping is enabled, the total size of messages currently held in memory for the durable. If message swapping is disabled, this value is zero. |
| Last Sub Remove Time |
The amount of time, in milliseconds, since the last consumer disconnected from the durable. If durable TTL is enabled, and this number is greater than the durable TTL, the persistence cluster may destroy the durable. |
| Inbound Message Count |
The total number of messages that were published to this topic and stored by this durable. If the durable has a selector (content filter), this number may be less than the total number of messages published to the topic. This number resets if the leader of the persistence cluster changes. |
| Inbound Message Size |
The total size of messages that were published to this topic and stored by this durable. If the durable has a selector (content filter), this number may be less than the total size of messages published to the topic. This number resets if the leader of the persistence cluster changes. |
| Outbound Message Count |
The total number of messages that were delivered to subscribers on this durable. If a message was delivered twice, this count would increment twice. This number resets if the leader of the persistence cluster changes. |
| Outbound Message Size |
The total size of messages that were delivered to subscribers on this durable. If a message was delivered twice, this size would increment twice. This number resets if the leader of the persistence cluster changes. |
| Browsers |
The number of browsers currently connected to this durable. Client programs may create browsers to view, but not acknowledge, messages in a shared durable. Large numbers of browsers may cause performance issues. |
| Total Redeliveries |
The number of times that any message in the durable was redelivered to a subscriber. This count is incremented for each redelivery. A redelivery can occur if a client program fails or is closed without acknowledging a message. This number resets if the leader of the persistence cluster changes. |
| Expiration Count |
The number of messages that were deleted from this durable without being acknowledged by a subscriber. This can occur due to message TTL or other configured limits. This number resets if the leader of the persistence cluster changes. |
| Template | The configured destination used to populate subscription properties for this durable. See Destination Matching and Wildcards. |
| Durable Type | The durable type as specified by the client program. See Topics in Destination Types. |
Queues Tab
This tab lists all queues.
Click a row to view the details page for a queue. See Queue Details Page.
| Field | Description |
|---|---|
| Name | The name of the destination as specified by the client program. |
| Pending Msgs | The number of messages in the queue that have not yet been acknowledged by a consumer. |
| Pending Size | The total size of messages (in bytes) in the queue that have not yet been acknowledged by a consumer. |
| Subscribers | The number of subscribers on the queue currently connected to the persistence cluster. |
| Msg/s In | Inbound message rate for the queue. |
| Msg/s Out | Outbound message rate for the queue, summed across all consumers. |
| Store | The persistence store to which the queue belongs. |
| Action | Description |
|---|---|
| Delete Queue |
Delete the selected queue. This will also discard all pending messages for the selected queue. |
| Rewind Queue |
Rewind the selected queue. All client programs must close their subscribers on the queue before you rewind the queue. When message retention is enabled, and a subscriber acknowledges a message, the message is not deleted until the retention time elapses. Rewinding a queue will make messages that were acknowledged, but not yet deleted, available for consumption once again. This action is only available if message retention is enabled. |
| Purge Queue | Discard all pending messages for the selected queue. |
Queue Details Page
This page displays details about a specific queue.
| Field | Description |
|---|---|
| Total Message Count |
The total number of messages stored by the queue. If message retention is disabled, this number is the same as “Pending Message Count”. If message retention is enabled, this number will include messages acknowledged by consumers, but not yet deleted. |
| Total Message Size |
The total size of messages stored by the queue. If message retention is disabled, this number is the same as “Pending Message Size”. If message retention is enabled, this number will include messages acknowledged by consumers, but not yet deleted. |
| Pending Message Count | The number of messages in a queue that have not yet been acknowledged by a consumer. |
| Pending Message Size | The total size of messages in a queue that have not yet been acknowledged by a consumer. |
| Swap Message Count |
If message swapping is enabled, the number of messages currently held in memory for the queue. If message swapping is disabled, this value is 0. |
| Swap Message Size |
If message swapping is enabled, the total size of messages currently held in memory for the queue. If message swapping is disabled, this value is 0. |
| Last Sub Remove Time | The amount of time, in milliseconds, since the last consumer disconnected from the queue. |
| Inbound Message Count |
The total number of messages that were published to this queue. This number resets if the leader of the persistence cluster changes. |
| Inbound Message Size |
The total size of messages that were published to this queue. This number resets if the leader of the persistence cluster changes. |
| Outbound Message Count |
The total number of messages that were delivered to subscribers on this queue. If a message was delivered twice, this count would increment twice. This number resets if the leader of the persistence cluster changes. |
| Outbound Message Size |
The total size of messages that were delivered to subscribers on this queue. If a message was delivered twice, the size would increment twice. This number resets if the leader of the persistence cluster changes. |
| Browsers |
The number of browsers currently connected to this queue. Client programs may create browsers to view, but not acknowledge, messages in a queue. Large numbers of browsers may cause performance issues. |
| Total Redeliveries |
The number of times that any message in the queue was redelivered to a subscriber. This count is incremented for each redelivery. A redelivery can occur if a client program fails or is closed without acknowledging a message. This number resets if the leader of the persistence cluster changes. |
| Expired Messages |
The number of messages that were deleted from this queue without being acknowledged by a subscriber. This can occur due to message TTL or other configured limits. This number resets if the leader of the persistence cluster changes. |
| Template | The configured destination used to populate subscription properties for this durable. See Destination Matching and Wildcards. |
Maps Tab
This tab lists all maps.
Click a row to view the details page for a map. See Map Details Page.
| Field | Description |
|---|---|
| Name | The name of the destination as specified by the client program. |
| Total Keys | The number of key-value pairs in the map. |
| Total Size | The total size of key-value pairs (in bytes) in the map. |
| Keys In/s | The rate at which key-value pairs are set in the map. |
| Keys Out/s | The rate at which key-value pairs are retrieved from the map. |
| Store | The persistence store to which the map belongs. |
| Action | Description |
|---|---|
| Delete Map |
Delete the selected map. This will also discard all key-value pairs in the map. |
| Purge Map | Discard all key-value pairs in the map. |
Map Details Page
This page displays details about a specific map.
| Field | Description |
|---|---|
| Key Count | The number of key-value pairs in the map. |
| Total Size | The total size of key-value pairs in the map. |
| Swapped Key Count |
If message swapping is enabled, the number of key-value pairs currently held in memory for the map. If message swapping is disabled, this value is 0. |
| Swapped Bytes |
If message swapping is enabled, the total size of key-value pairs currently held in memory for the map. If message swapping is disabled, this value is 0. |
| Last Sub Remove Time | The amount of time, in milliseconds, since the last client disconnected from the map. |
| Inbound Key Count |
The total number of key-value pairs that were set in this map. This count increments whenever a key-value pair is created or overwritten. This number resets if the leader of the persistence cluster changes. |
| Inbound Byte Count |
The total size of key-value pairs that were set in this map. This count increments whenever a key-value pair is created or overwritten. This number resets if the leader of the persistence cluster changes. |
| Outbound Key Count |
The total number of key-value pairs that were fetched by client programs via the get or iterate API calls. If a key-value pair is fetched twice, this count is incremented twice. This number resets if the leader of the persistence cluster changes. |
| Outbound Byte Count |
The total size of key-value pairs that were fetched by client programs via the get or iterate API calls. If a key-value pair is fetched twice, this count is incremented twice. This number resets if the leader of the persistence cluster changes. |
| Expiration Count |
The number of key-value pairs that were deleted from this map without being removed by a client program. This can occur due to message TTL or other configured limits. This number resets if the leader of the persistence cluster changes. |
| Template | The configured destination used to populate properties for this map. See Destination Matching and Wildcards. |