TxnStore Performance

Txnstore Performance provides a statistics page that enables you to view the performance statistics for the service operation that flows through elasticsearch.


On the APM Dashboard > click TXNSTORE PERFORMANCE tab to view the performance statistics.

 

TxnStore Performace dashboard provides the  following information:

Cluster details

A cluster is made up of one or more nodes. Cluster details displays the details such as total nodes, total indices, total documents and so on.

 

 

Following field description table contains information about cluster details:

 

Cluster Details

Description

Cluster Name

Indicates the name of the TxnStore (elasticsearch) cluster.

Health

Indicates the health of the cluster, status can be one of the following:

  • Green: Indicates that the cluster is in healthy state.
  • Yellow: Indicates that the cluster is in some trouble and it is required to get the cluster back into healthy state.
  • Red: Indicates that the cluster is in danger zone and due to which elasticsearch might not work.

Total Nodes

Displays the total number of nodes (machines) where elasticsearch is installed.

 Total Indices

Displays the total number of indexes created (Indices are like to databases in RDMS term).

Total Documents

Displays the total number of documents (records) that are created.

Total Data

Displays the total size of data that is created in elasticsearch.

Active Shards

Displays the total number of active shards. Shards are logical separation of data (shards like tables in terms of RDBMS)

Unassigned Shards

Displays the total unassigned shards. If some of the nodes (machines) are unreachable in cluster, then data (shards) of those machines become unreachable and shards remains in unassign state.

Relocating Shards

 As elasticsearch internal moves, copies or replicates the data between nodes (elasticsearch servers) then this represents the relocated data. 

Initializing Shards

Indicates that the data is loading.



 



















TxnStore System Details

    

 

Following field description table contains information about TxnStore System details:

 

TxnStore System details

Description

Uptime

Displays the up and running time of cluster.

TxnStore Memory

 Displays the total available and used memory by elasticsearch.
 

System Memory

 Displays the total available and used system memory of all elasticsearch cluster nodes. 

System Disk

 Displays the total system disk space available for elasticsearch nodes to store the data.

 
 

 

 

 

 

 

Nodes Details

Whenever you are starting the elasticsearch instance, you are actually starting the nodes. The Nodes details provides information about the nodes in which the data resides. Additionally, it displays information about the node whether it is available or unassigned.

 

    

 

Following field description table contains information about nodes:

 

Nodes details

Description

Index

Indicates the databases of elasticsearch .

m

Indicates the master node and it will be in bold font.

d

Indicates the data node.

Other columns specifics different nodes

  • P shard (data table): Indicates the primary shard which shows the total number of records and data size present in shard.

  • R shard (data table): Indicates the replica shard which shows the total number of records and data size present in shard.

  • Unassigned: Indicates whether the shard data is available or not due to server not reachable or down.

  • Shard Table with Bold Font: Indicates that the particular shards are assigned shards.

  • Grayed Out or Faded Shards: Indicates that the particular shards are unassigned shards.