When the coordinator changes, we use delayedAsyncVar() to reduce
the frequency for cluster controller to send the updated connectedCoordinatorsNumDelayed
to clients.
This help reduce the cluster controllers workload
Change the rst document file;
Change the coding style to be consistent with the nearby code;
Ensure we always initilize the connectedCoordinatesNum to 0
even when the variable is not used.
A client will always try to connect all coordinators.
This commit let Status track the number of connected coordinators
for each client.
This allows us to do canary in coordinators. For example,
when we switch from non-TLS to TLS, we can switch 1 coordinator
from non-TLS to TLS. This can help check if a client has the ability
to connect through TLS.
We can make the non-TLS to TLS switch for each coordinators
one by one. This avoid the risk of losing connection in the switch.
- NetworkAddress now contains IPAddress object which can be either
IPv4 or IPv6 address. 128bits are used even for IPv4 addresses,
however only 32bits are used when using/serializing IPv4 address.
- ConnectPacket is updated to store IPv6 address. Backward compatible
with old format since the first 32bits of IP address field is used
for serialization of IPv4.
- Mainly updates rest of the code to use IPAddress structure instead
of plain uint32_t.
- IPv6 address/pair ports should be represented as `[ip]:port` as per
convention. This applies to both cluster files and command line
arguments.
fix: avoid picking a read version which could be before the last real commit
fix: we must wait on metadataVersionKey in case it is not already cached
fixed review comments
To understand if all clients have configured TLS,
we check the tlsoption when a client tries to open database.
This is similar to how we track the versions of multi-version clients.
* client-transaction-id:
Add user provided transaction id as part of the format in ClientTransactionProfileCorrectness workload.
Addressed review comments.
Apply suggestions from code review
Add support for client provided transaction identifier to be logged as part of trace logging or transaction profiling.
A.J. Beamon