vtclient connects to a vtgate server using the standard go driver API. For query bound variables, we assume place-holders in the query string in the form of :v1, :v2, etc. Usage: vtclient [flags] Examples: vtclient --server vtgate:15991 "SELECT * FROM messages" vtclient --server vtgate:15991 --target '@primary' --bind_variables '[ 12345, 1, "msg 12345" ]' "INSERT INTO messages (page,time_created_ns,message) VALUES (:v1, :v2, :v3)" Flags: --alsologtostderr log to standard error as well as files --bind-variables float bind variables as a json list (default null) --config-file string Full path of the config file (with extension) to use. If set, --config-path, --config-type, and --config-name are ignored. --config-file-not-found-handling ConfigFileNotFoundHandling Behavior when a config file is not found. (Options: error, exit, ignore, warn) (default warn) --config-name string Name of the config file (without extension) to search for. (default "vtconfig") --config-path strings Paths to search for config files in. (default [/tmp]) --config-persistence-min-interval duration minimum interval between persisting dynamic config changes back to disk (if no change has occurred, nothing is done). (default 1s) --config-type string Config file type (omit to infer config type from file extension). --count int DMLs only: Number of times each thread executes the query. Useful for simple, sustained load testing. (default 1) --datadog-agent-host string host to send spans to. if empty, no tracing will be done --datadog-agent-port string port to send spans to. if empty, no tracing will be done --datadog-trace-debug-mode enable debug mode for datadog tracing --grpc-auth-static-client-creds string When using grpc_static_auth in the server, this file provides the credentials to use to authenticate with server. --grpc-compression string Which protocol to use for compressing gRPC. Default: nothing. Supported: snappy --grpc-dial-concurrency-limit int Maximum concurrency of grpc dial operations. This should be less than the golang max thread limit of 10000. (default 1024) --grpc-enable-tracing Enable gRPC tracing. --grpc-initial-conn-window-size int gRPC initial connection window size --grpc-initial-window-size int gRPC initial window size --grpc-keepalive-time duration After a duration of this time, if the client doesn't see any activity, it pings the server to see if the transport is still alive. (default 10s) --grpc-keepalive-timeout duration After having pinged for keepalive check, the client waits for a duration of Timeout and if no activity is seen even after that the connection is closed. (default 10s) --grpc-max-message-size int Maximum allowed RPC message size. Larger messages will be rejected by gRPC with the error 'exceeding the max size'. (default 16777216) --grpc-prometheus Enable gRPC monitoring with Prometheus. -h, --help help for vtclient --jaeger-agent-host string host and port to send spans to. if empty, no tracing will be done --json Output JSON instead of human-readable table --keep-logs duration keep logs for this long (using ctime) (zero to keep forever) --keep-logs-by-mtime duration keep logs for this long (using mtime) (zero to keep forever) --log-err-stacks log stack traces for errors --log-rotate-max-size uint size in bytes at which logs are rotated (glog.MaxSize) (default 1887436800) --log_backtrace_at traceLocations when logging hits line file:N, emit a stack trace --log_dir string If non-empty, write log files in this directory --logtostderr log to standard error instead of files --max-sequence-id int max sequence ID. --min-sequence-id int min sequence ID to generate. When max-sequence-id > min-sequence-id, for each query, a number is generated in [min-sequence-id, max-sequence-id) and attached to the end of the bind variables. --mysql-server-version string MySQL server version to advertise. (default "8.4.6-Vitess") --parallel int DMLs only: Number of threads executing the same query in parallel. Useful for simple load testing. (default 1) --pprof strings enable profiling --pprof-http enable pprof http endpoints --purge-logs-interval duration how often try to remove old logs (default 1h0m0s) --qps int queries per second to throttle each thread at. --security-policy string the name of a registered security policy to use for controlling access to URLs - empty means allow all for anyone (built-in policies: deny-all, read-only) --server string vtgate server to connect to --stderrthreshold severityFlag logs at or above this threshold go to stderr (default 1) --streaming use a streaming query --target string keyspace:shard@tablet_type --timeout duration timeout for queries (default 30s) --tracer string tracing service to use (default "noop") --tracing-enable-logging whether to enable logging in the tracing service --tracing-sampling-rate float sampling rate for the probabilistic jaeger sampler (default 0.1) --tracing-sampling-type string sampling strategy to use for jaeger. possible values are 'const', 'probabilistic', 'rateLimiting', or 'remote' (default "const") --use-random-sequence use random sequence for generating [min-sequence-id, max-sequence-id) --v Level log level for V logs -v, --version print binary version --vmodule vModuleFlag comma-separated list of pattern=N settings for file-filtered logging --vtgate-grpc-ca string the server ca to use to validate servers when connecting --vtgate-grpc-cert string the cert to use to connect --vtgate-grpc-crl string the server crl to use to validate server certificates when connecting --vtgate-grpc-fail-fast whether to enable grpc fail fast when connecting --vtgate-grpc-key string the key to use to connect --vtgate-grpc-server-name string the server name to use to validate server certificate --vtgate-protocol string how to talk to vtgate (default "grpc")