What is Optimistic concurrency

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Also known as "optimistic locking", this is an approach that allows for updates to documents currently in the index while retaining locking or version control.

Other related questions:
Number of concurrent connections of the MM910
A maximum of 30 users can log in to the E9000 MM910 WebUI at the same time. There is no limit on the number of concurrent login users on the CLI.

What does the maximum number of U1900 concurrent online calls mean?
The maximum number of concurrent online calls means the maximum number of calls that can be made concurrently on the U1900.

Differences between FusionAccess licenses and concurrent licenses
FusionAccess licenses are assigned based on the maximum number of available user accounts while concurrent licenses are assigned based on the maximum number of users who can connect to a terminal concurrently. The two types of licenses have different dimensions and application scenarios. Generally, FusionAccess licenses apply to scenarios where a user has one or several virtual desktops that are frequently used, such as OA office. Concurrent licenses apply to scenarios where a user has one virtual desktop or several users share one VM or VM resource pool that is infrequently used, such as meeting terminals, call centers, and multimedia classrooms.

Number of concurrent IPSec VPN tunnels on the firewall
Number of concurrent IPSec VPN tunnels on the USG This question involves the device performance. For an accurate answer, contact the pre-sales personnel. USG2110 USG2130 USG2160 USG2210 USG2220 USG2230 USG2250 USG5120 USG5150 Performance specification Number of concurrent connections 100,000 200,000 200,000 300,000 500,000 800,000 1 million 2 million 2 million Number of new connections per second 1200 IPSec VPN performance 40M 60M 60M 300M 350M 400M 500M 1G 2G Number of concurrent IPSec VPN tunnels 64 64 64 2000 2000 2000 2000 2000 2000

Number of concurrent server BMC connections
The WebUI of server iBMC or iMana supports a maximum of four concurrent logins. The CLI supports a maximum of five concurrent logins.

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