add s3 circuit breaker support for 'simultaneous request count' and 'simultaneous request bytes' limitations

configure s3 circuit breaker by 'command_s3_circuitbreaker.go':
usage eg:
# Configure the number of simultaneous global (current s3api node) requests
s3.circuit.breaker -global -type count -actions Write -values 1000 -apply

# Configure the number of simultaneous requests for bucket x read and write
s3.circuit.breaker -buckets -type count -actions Read,Write -values 1000 -apply

# Configure the total bytes of simultaneous requests for bucket write
s3.circuit.breaker -buckets -type bytes -actions Write -values 100MiB -apply

# Disable circuit breaker config of bucket 'x'
s3.circuit.breaker -buckets x -enable false -apply

# Delete circuit breaker config of bucket 'x'
s3.circuit.breaker -buckets x -delete -apply

1 files changed, 7 insertions, 0 deletions

diff --git a/weed/shell/command_s3_circuitbreaker_test.go b/weed/shell/command_s3_circuitbreaker_test.go
new file mode 100644
index 000000000..93e9fa414
--- /dev/null
+++ b/weed/shell/command_s3_circuitbreaker_test.go
@@ -0,0 +1,7 @@
+package shell
+
+import "testing"
+
+func TestCircuitBreakerShell(t *testing.T) {
+
+}