What is the meaning of Worker

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Topologies execute across one or more worker processes. Each worker process is a physical JVM and executes a subset of all the tasks for the topology.

Other related questions:
What is the meaning of Abbreviated Dialing
The abbreviated dialing feature allows users to call frequent contacts by dialing abbreviated numbers instead of long numbers. Abbreviated dialing reduces dialing time and makes numbers easy to remember.

What are the meanings of BHCA and BHCC?
1. Busy hour call attempts (BHCA) indicate the number of call attempts during the busiest hour of a day. Note that BHCA covers both successful calls and unsuccessful call attempts. 2. Busy hour completed calls (BHCC) indicate the number of calls completed on the current exchange during the busiest hour of a day, containing incoming and outgoing calls.

What mean the LCD by METRO3000
1. The cross plate lamp: RUN - RUN green light state description: normal operation of flash once every 2 seconds (construction), flashing veneer work 5 times every 1 seconds, blinking once every 4 seconds veneer and SCC board communication interrupt, cross board for standby, running lights show to orange, according to the state of running lights flashing. ALM - red warning light is described: every 1 second flash 1 time a secondary alarm occurs, every 1 second blink twice is the main alarm occurs, every 1 seconds flashing 3 times have emergency alarm, normally on a red light, green light put out self-inspection of memory error 2. The main control panel lights: RUN - RUN green light state description: flash once every 1 seconds did not load the host software, normal operation of flash once every 2 seconds (construction), flashing program start/loaded 5 times every 1 seconds Every 4 seconds, flashing one database protected mode. ALM - red warning light is described: every 1 second flash 1 time a secondary alarm occurs, every 1 second blink twice is the main alarm occurs, every 1 seconds flashing 3 times have emergency alarm, normally on a red light, green light out self-inspection of memory error, the red light and green light flashing at the same time, about every 1 seconds flashing 2 times or in the loading software is running the underlying software. ETN - Ethernet connection indicator state description: normally on the Ethernet connection is normal, flicker is to transmit data, often destroy the Ethernet is not connected or connection is not normal. 3. Other single boards: RUN - RUN green light state description: normal operation of flash once every 2 seconds (construction), flashing veneer work 5 times every 1 seconds, alarm, running lights flashing at the same time, every 4 seconds flashing one single board and main board communication interrupt (such as the main control board was uprooted, veneer email error, etc.). ALM - red warning light is described: every 1 second flash 1 time a secondary alarm occurs, every 1 second blink twice is the main alarm occurs, every 1 seconds flashing 3 times have emergency alarm, normally on a red light, green light put out self-inspection of memory error.

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