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Handle errors differently in the DeviceListUpdater
(#2695)
`If a device list update goes missing, the server resyncs on the next one` was failing because a previous test would receive a `waitTime` of 1h, resulting in the test timing out. This now tries to handle the returned errors differently, e.g. by using the default `waitTime` of 2s. Also doesn't try further users in the list, if one of the errors would cause a longer `waitTime`.
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parent
847032df36
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440eb0f3a2
@ -53,9 +53,9 @@ func (d *Database) AssociateEDUWithDestination(
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// Keep EDUs for at least x minutes before deleting them
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expiresAt = gomatrixserverlib.AsTimestamp(time.Now().Add(duration))
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}
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// We forcibly set m.direct_to_device events to 0, as we always want them
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// to be delivered. (required for E2EE)
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if eduType == gomatrixserverlib.MDirectToDevice {
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// We forcibly set m.direct_to_device and m.device_list_update events
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// to 0, as we always want them to be delivered. (required for E2EE)
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if eduType == gomatrixserverlib.MDirectToDevice || eduType == gomatrixserverlib.MDeviceListUpdate {
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expiresAt = 0
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}
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return d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
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@ -24,7 +24,7 @@ import (
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"net/url"
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"strings"
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opentracing "github.com/opentracing/opentracing-go"
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"github.com/opentracing/opentracing-go"
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"github.com/opentracing/opentracing-go/ext"
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)
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@ -81,8 +81,8 @@ func PostJSON[reqtype, restype any, errtype error](
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return fmt.Errorf("HTTP %d from %s (no response body)", res.StatusCode, apiURL)
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}
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var reserr errtype
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if err = json.Unmarshal(body, reserr); err != nil {
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return fmt.Errorf("HTTP %d from %s", res.StatusCode, apiURL)
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if err = json.Unmarshal(body, &reserr); err != nil {
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return fmt.Errorf("HTTP %d from %s - %w", res.StatusCode, apiURL, err)
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}
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return reserr
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}
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@ -19,9 +19,11 @@ import (
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"encoding/json"
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"fmt"
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"hash/fnv"
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"net"
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"sync"
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"time"
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"github.com/matrix-org/gomatrix"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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"github.com/prometheus/client_golang/prometheus"
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@ -388,6 +390,8 @@ func (u *DeviceListUpdater) processServer(serverName gomatrixserverlib.ServerNam
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return waitTime, true
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}
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failCount := 0
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userLoop:
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for _, userID := range userIDs {
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if ctx.Err() != nil {
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// we've timed out, give up and go to the back of the queue to let another server be processed.
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@ -397,19 +401,35 @@ func (u *DeviceListUpdater) processServer(serverName gomatrixserverlib.ServerNam
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res, err := u.fedClient.GetUserDevices(ctx, serverName, userID)
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if err != nil {
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failCount += 1
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fcerr, ok := err.(*fedsenderapi.FederationClientError)
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if ok {
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if fcerr.RetryAfter > 0 {
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waitTime = fcerr.RetryAfter
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} else if fcerr.Blacklisted {
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switch e := err.(type) {
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case *fedsenderapi.FederationClientError:
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if e.RetryAfter > 0 {
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waitTime = e.RetryAfter
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break userLoop
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} else if e.Blacklisted {
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waitTime = time.Hour * 8
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} else {
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// For all other errors (DNS resolution, network etc.) wait 1 hour.
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waitTime = time.Hour
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break userLoop
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}
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} else {
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waitTime = time.Hour
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logger.WithError(err).WithField("user_id", userID).Debug("GetUserDevices returned unknown error type")
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case net.Error:
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// Use the default waitTime, if it's a timeout.
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// It probably doesn't make sense to try further users.
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if !e.Timeout() {
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waitTime = time.Minute * 10
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logrus.WithError(e).Error("GetUserDevices returned net.Error")
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break userLoop
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}
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case gomatrix.HTTPError:
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// The remote server returned an error, give it some time to recover
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if e.Code >= 500 {
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waitTime = time.Minute * 10
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logrus.WithError(e).Error("GetUserDevices returned gomatrix.HTTPError")
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break userLoop
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}
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default:
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// Something else failed
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waitTime = time.Minute * 10
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logger.WithError(err).WithField("user_id", userID).Debugf("GetUserDevices returned unknown error type: %T", err)
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break userLoop
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}
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continue
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}
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@ -437,7 +457,11 @@ func (u *DeviceListUpdater) processServer(serverName gomatrixserverlib.ServerNam
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}
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}
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if failCount > 0 {
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logger.WithField("total", len(userIDs)).WithField("failed", failCount).WithField("wait", waitTime).Warn("Failed to query device keys for some users")
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logger.WithFields(logrus.Fields{
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"total": len(userIDs),
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"failed": failCount,
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"skipped": len(userIDs) - failCount,
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}).Warn("Failed to query device keys for some users")
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}
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for _, userID := range userIDs {
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// always clear the channel to unblock Update calls regardless of success/failure
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@ -741,4 +741,5 @@ Newly joined room includes presence in incremental sync
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User in private room doesn't appear in user directory
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User joining then leaving public room appears and dissappears from directory
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User in remote room doesn't appear in user directory after server left room
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User in shared private room does appear in user directory until leave
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User in shared private room does appear in user directory until leave
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If a device list update goes missing, the server resyncs on the next one
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