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[#242] pool: Log error that caused healthy status change

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Signed-off-by: Marina Biryukova <m.biryukova@yadro.com>
This commit is contained in:
Marina Biryukova 2024-07-22 11:17:26 +03:00
parent 7e94a6adf2
commit fa89999d91
2 changed files with 21 additions and 16 deletions
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6
pool/mock_test.go
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@ -195,9 +195,9 @@ func (m *mockClient) dial(context.Context) error {
return nil return nil
} }
func (m *mockClient) restartIfUnhealthy(ctx context.Context) (healthy bool, changed bool) { func (m *mockClient) restartIfUnhealthy(ctx context.Context) (changed bool, err error) {
_, err := m.endpointInfo(ctx, prmEndpointInfo{}) _, err = m.endpointInfo(ctx, prmEndpointInfo{})
healthy = err == nil healthy := err == nil
changed = healthy != m.isHealthy() changed = healthy != m.isHealthy()
if healthy { if healthy {
m.setHealthy() m.setHealthy()

31
pool/pool.go
View file

@ -86,7 +86,7 @@ type client interface {
// see clientWrapper.dial. // see clientWrapper.dial.
dial(ctx context.Context) error dial(ctx context.Context) error
// see clientWrapper.restartIfUnhealthy. // see clientWrapper.restartIfUnhealthy.
restartIfUnhealthy(ctx context.Context) (bool, bool) restartIfUnhealthy(ctx context.Context) (bool, error)
// see clientWrapper.close. // see clientWrapper.close.
close() error close() error
} }
@ -373,11 +373,11 @@ func (c *clientWrapper) dial(ctx context.Context) error {
} }
// restartIfUnhealthy checks healthy status of client and recreate it if status is unhealthy. // restartIfUnhealthy checks healthy status of client and recreate it if status is unhealthy.
// Return current healthy status and indicating if status was changed by this function call. // Indicating if status was changed by this function call and returns error that caused unhealthy status.
func (c *clientWrapper) restartIfUnhealthy(ctx context.Context) (healthy, changed bool) { func (c *clientWrapper) restartIfUnhealthy(ctx context.Context) (changed bool, err error) {
var wasHealthy bool var wasHealthy bool
if _, err := c.endpointInfo(ctx, prmEndpointInfo{}); err == nil { if _, err = c.endpointInfo(ctx, prmEndpointInfo{}); err == nil {
return true, false return false, nil
} else if !errors.Is(err, errPoolClientUnhealthy) { } else if !errors.Is(err, errPoolClientUnhealthy) {
wasHealthy = true wasHealthy = true
} }
@ -403,22 +403,22 @@ func (c *clientWrapper) restartIfUnhealthy(ctx context.Context) (healthy, change
GRPCDialOptions: c.prm.dialOptions, GRPCDialOptions: c.prm.dialOptions,
} }
if err := cl.Dial(ctx, prmDial); err != nil { if err = cl.Dial(ctx, prmDial); err != nil {
c.setUnhealthyOnDial() c.setUnhealthyOnDial()
return false, wasHealthy return wasHealthy, err
} }
c.clientMutex.Lock() c.clientMutex.Lock()
c.client = &cl c.client = &cl
c.clientMutex.Unlock() c.clientMutex.Unlock()
if _, err := cl.EndpointInfo(ctx, sdkClient.PrmEndpointInfo{}); err != nil { if _, err = cl.EndpointInfo(ctx, sdkClient.PrmEndpointInfo{}); err != nil {
c.setUnhealthy() c.setUnhealthy()
return false, wasHealthy return wasHealthy, err
} }
c.setHealthy() c.setHealthy()
return true, !wasHealthy return !wasHealthy, nil
} }
func (c *clientWrapper) getClient() (*sdkClient.Client, error) { func (c *clientWrapper) getClient() (*sdkClient.Client, error) {
@ -2198,7 +2198,8 @@ func (p *Pool) updateInnerNodesHealth(ctx context.Context, i int, bufferWeights
tctx, c := context.WithTimeout(ctx, options.nodeRequestTimeout) tctx, c := context.WithTimeout(ctx, options.nodeRequestTimeout)
defer c() defer c()
healthy, changed := cli.restartIfUnhealthy(tctx) changed, err := cli.restartIfUnhealthy(tctx)
healthy := err == nil
if healthy { if healthy {
bufferWeights[j] = options.nodesParams[i].weights[j] bufferWeights[j] = options.nodesParams[i].weights[j]
} else { } else {
@ -2207,8 +2208,12 @@ func (p *Pool) updateInnerNodesHealth(ctx context.Context, i int, bufferWeights
} }
if changed { if changed {
p.log(zap.DebugLevel, "health has changed", fields := []zap.Field{zap.String("address", cli.address()), zap.Bool("healthy", healthy)}
zap.String("address", cli.address()), zap.Bool("healthy", healthy)) if err != nil {
fields = append(fields, zap.String("reason", err.Error()))
}
p.log(zap.DebugLevel, "health has changed", fields...)
healthyChanged.Store(true) healthyChanged.Store(true)
} }
}(j, cli) }(j, cli)