Search code examples
jdbcjbosswildfly

JBoss pool has negative value for IdleCount

Sometimes, when checking my JBoss 7.1 connection pool status (JDBC), I see a negative value for IdleCount, like in the following example where "IdleCount" => -7.

Can someone explain me the meaning of this negative value?

"pool" => {
"ActiveCount" => 13,
"AvailableCount" => 230,
"AverageBlockingTime" => 1L,
"AverageCreationTime" => 76L,
"AverageGetTime" => 2L,
"AveragePoolTime" => 306L,
"AverageUsageTime" => 241L,
"BlockingFailureCount" => 0,
"CreatedCount" => 13,
"DestroyedCount" => 0,
"IdleCount" => -7,
"InUseCount" => 20,
Solution

  • IdleCount is calculated using ActiveCout - InUseCount.

    e.g. IdleCount = ActiveCount - InUseCount => 13-20 = -7

    That is why it is showing -7 in the pool stats.

    refer to the code base