Documentation Home
NDB Cluster Internals
Download this Manual
PDF (US Ltr) - 1.0Mb
PDF (A4) - 0.9Mb
HTML Download (TGZ) - 369.9Kb
HTML Download (Zip) - 380.8Kb


2.107 DUMP 8004

Table 2.118 DUMP code 8004

Code Symbol Kernel Block
8004 --- SUMA

Description.  Dumps information about subscription resources.

Sample Output. 

Node 2: Suma: c_subscriberPool  size: 260 free: 258
Node 2: Suma: c_tablePool  size: 130 free: 128
Node 2: Suma: c_subscriptionPool  size: 130 free: 128
Node 2: Suma: c_syncPool  size: 2 free: 2
Node 2: Suma: c_dataBufferPool  size: 1009 free: 1005
Node 2: Suma: c_metaSubscribers count: 0
Node 2: Suma: c_removeDataSubscribers count: 0

Additional Information.  When subscriberPool ... free becomes and stays very low relative to subscriberPool ... size, it is often a good idea to increase the value of the MaxNoOfTables configuration parameter (subscriberPool = 2 * MaxNoOfTables). However, there could also be a problem with API nodes not releasing resources correctly when they are shut down. DUMP 8004 provides a way to monitor these values.