gcloud very slow

[Theron Luhn]

gcloud on my Mac (OS X 10.10.4) is acting very slowly.  For example, `gcloud compute zones list` takes over a minute to complete.  I suspect it has something to do with my office network, since it seems to work fine from home.  I can't think what the network problem would be, though, gcloud just uses HTTP, which I know works fine, and similar CLIs such as the AWS CLI are blazing fast.

Here's the output from the zone list:

google-cloud-sdk  bin/gcloud compute zones list --log-http --verbosity debug
DEBUG: Running gcloud.compute.zones.list with Namespace(__calliope_internal_deepest_parser=ArgumentParser(prog='gcloud.compute.zones.list', usage=None, description='List Google Compute Engine zones.', version=None, formatter_class=<class 'argparse.HelpFormatter'>, conflict_handler='error', add_help=False), cmd_func=<bound method Command.Run of <googlecloudsdk.calliope.backend.Command object at 0x1112c2e10>>, command_path=['gcloud', 'compute', 'zones', 'list'], document=None, endpoint=None, format=None, h=None, help=None, http_timeout=None, limit=None, log_http=True, markdown=None, names=[], project=None, quiet=None, regexp=None, sort_by=None, trace_token=None, uri=False, user_output_enabled=None, verbosity='debug', version=None).
DEBUG: Starting batch request...
DEBUG: Adding request: (<googlecloudapis.compute.v1.compute_v1_client.ZonesService object at 0x110fac490>, 'List', <ComputeZonesListRequest
 maxResults: 500
 project: [redacted]'>)
DEBUG: Making batch request...
--request-start--
uri: https://www.googleapis.com/batch
-headers-start-
Authorization: Bearer [redacted]
content-length: 475
content-type: multipart/mixed; boundary="===============1365626220100345520=="
user-agent: Cloud SDK Command Line Tool gcloud/0.9.69 command/gcloud.compute.zones.list invocation-id/9b07f798ad8e4bc090b20d132a2049f3 environment/None interactive/True (Macintosh; Intel Mac OS X 14.4.0)
-headers-end-
-body-start-
--===============1365626220100345520==
Content-Type: application/http
MIME-Version: 1.0
Content-Transfer-Encoding: binary
Content-ID: <481ad0bb-4046-4838-bb6f-f1eefff4a30f+0>
GET /compute/v1/projects/[redacted]/zones?alt=json&maxResults=500 HTTP/1.1
Content-Type: application/json
MIME-Version: 1.0
content-length: 0
accept-encoding: gzip, deflate
accept: application/json
user-agent: apitools-client/1.0
Host: www.googleapis.com

--===============1365626220100345520==--
-body-end-
--request-end--

At this point, it hangs for a long time, before the response is received and the zones outputted.

[Valentin Stanciu]

Hi Theron,

It probably would be helpful to run a traceroute as well:
traceroute www.googleapis.com

Valentin

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[Theron Luhn]

$ traceroute www.googleapis.com

traceroute to googleapis.l.google.com (74.125.129.95), 64 hops max, 52 byte packets

 1  192.168.1.1 (192.168.1.1)  0.637 ms  0.324 ms  0.383 ms

 2  dsldevice.attlocal.net (192.168.7.254)  1.061 ms  0.871 ms  0.888 ms

 3  104-5-4-1.lightspeed.frokca.sbcglobal.net (104.5.4.1)  8.895 ms  4.882 ms  4.589 ms

 4  71.147.199.180 (71.147.199.180)  5.617 ms  6.309 ms  5.059 ms

 5  75.29.64.110 (75.29.64.110)  5.135 ms  4.833 ms  4.784 ms

 6  75.29.64.173 (75.29.64.173)  5.455 ms  5.380 ms  5.120 ms

 7  12.83.77.145 (12.83.77.145)  6.620 ms  7.570 ms

    12.83.77.137 (12.83.77.137)  7.258 ms

 8  12.122.137.181 (12.122.137.181)  78.481 ms  32.430 ms  30.218 ms

 9  12.250.31.10 (12.250.31.10)  29.307 ms  29.439 ms  31.494 ms

10  216.239.49.170 (216.239.49.170)  9.688 ms

    216.239.49.168 (216.239.49.168)  9.748 ms  13.991 ms

11  209.85.246.253 (209.85.246.253)  28.593 ms

    209.85.246.20 (209.85.246.20)  9.523 ms

    209.85.246.253 (209.85.246.253)  28.566 ms

12  216.239.49.198 (216.239.49.198)  25.244 ms  37.739 ms  27.831 ms

13  216.239.40.148 (216.239.40.148)  28.476 ms

    64.233.175.36 (64.233.175.36)  28.786 ms

    216.239.40.146 (216.239.40.146)  28.557 ms

14  216.239.46.175 (216.239.46.175)  27.871 ms

    216.239.46.171 (216.239.46.171)  28.072 ms

    74.125.37.213 (74.125.37.213)  28.242 ms

15  * * *

16  pd-in-f95.1e100.net (74.125.129.95)  27.908 ms  28.224 ms  27.855 ms

[Glenn Fowler]

I created an internal issue to address this. Thanks for the report.

[Theron Luhn]

Alright, I figured it out:  My office network is misconfigured for IPv6, so any IPv6 connections hang.  By disabling IPv6 on my computer all my performance problems with gcloud were resolved.  Strange that gcloud was the only thing affected.

— Theron

[Glenn Fowler]

Thanks for that valuable info. Glad the workaround got you going again.

[Valentin Stanciu]

Ah, yes that would explain it.
In case you are still curious about which part takes a long time, maybe "traceroute6 www.googleapis.com" will help. In my original reply, I wrongly assumed IPv4 connectivity.

Valentin

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