openstack team mailing list archive

[Alex Yang <alex890714@xxxxxxxxx>]

There are any error about disk in the kern.log?

2012/10/30 Nathan Trueblood <nathan@xxxxxxxxxxxxxxxx>

> Still no further clues.   I re-created all the volumes I'm using for
> Swift.  Plenty of Inodes free:
>
> lab@data02:~$ df -i
> Filesystem        Inodes IUsed     IFree IUse% Mounted on
> /dev/sda2       12214272 39290  12174982    1% /
> none              107979   482    107497    1% /dev
> none              107979   268    107711    1% /run
> none              107979     2    107977    1% /run/lock
> none              107979     1    107978    1% /run/shm
> /dev/sda1          49152    23     49129    1% /boot
> /dev/sda4      134046400    37 134046363    1% /srv/node/sda4
>
> I successfully upload a small object to container cont1, then cont2.
> When I upload to cont3, I see the following in the object-server log
> (data02)
>
> This seems to be the problematic sequence:
>
> Data02 has ip 192.168.1.202
> Data03 has ip 192.168.1.203
>
> 1. First the account server reports an HTTP 201 on the container from a
> different object server in a different zone.
> 2. Then the object server reports a 404 trying to HEAD the new object.
> 3. Then the object server reports a 507 trying to PUT the new object.
>
> From this point the operation eventually fails and the proxy reports a 503.
>
> Oct 29 17:58:20 data02 account-server 192.168.1.203 - -
> [30/Oct/2012:00:58:20 +0000] "PUT /sda4/116021/AUTH_system/cont3" 201 -
> "tx5a3ca6c845af41928e0ba6b7bc58d2da" "-" "-" 0.0082 ""
> Oct 29 17:58:20 data02 object-server 192.168.1.111 - -
> [30/Oct/2012:00:58:20 +0000] "HEAD
> /sda4/257613/AUTH_system/cont3/home/lab/bigfile3" 404 - "-"
> "tx5f21503ff12e45e39a80eb52f6757261" "-" 0.0011
> Oct 29 17:58:20 data02 object-server 192.168.1.111 - -
> [30/Oct/2012:00:58:20 +0000] "PUT
> /sda4/257613/AUTH_system/cont3/home/lab/bigfile3" 507 - "-"
> "tx425494dc372740e28d043a07d3a08b9a" "-" 0.0031
>
> In an earlier, successful transaction I noticed that between Steps 1 and 2
> above, there is a response from the container-server:
>
> Oct 29 17:57:59 data02 account-server 192.168.1.204 - -
> [30/Oct/2012:00:57:59 +0000] "PUT /sda4/116021/AUTH_system/cont2" 201 -
> "txb10d75886bf14e4eba14fcc52d81c5d9" "-" "-" 0.0182 ""
> Oct 29 17:57:59 data02 container-server 192.168.1.111 - -
> [30/Oct/2012:00:57:59 +0000] "PUT /sda4/122355/AUTH_system/cont2" 201 -
> "txb10d75886bf14e4eba14fcc52d81c5d9" "-" "-" 0.1554
> Oct 29 17:57:59 data02 object-server 192.168.1.111 - -
> [30/Oct/2012:00:57:59 +0000] "HEAD
> /sda4/226151/AUTH_system/cont2/home/lab/bigfile3" 404 - "-"
> "tx1c514850530849d1bfbfa716d9039b87" "-" 0.0012
> Oct 29 17:57:59 data02 container-server 192.168.1.204 - -
> [30/Oct/2012:00:57:59 +0000] "PUT
> /sda4/122355/AUTH_system/cont2/home/lab/bigfile3" 201 -
> "tx8130af5cae484e5f9c5a25541d1c87aa" "-" "-" 0.0041
> Oct 29 17:57:59 data02 object-server 192.168.1.111 - -
> [30/Oct/2012:00:57:59 +0000] "PUT
> /sda4/226151/AUTH_system/cont2/home/lab/bigfile3" 201 - "-"
> "tx8130af5cae484e5f9c5a25541d1c87aa" "-" 0.1716
>
>
> So maybe the container server is failing to create the new container?
> Maybe a bug in auto-create of containers?
>
> Definitely NOT a problem with the filesystem, but something is causing the
> object-server to think there is a problem with the filesystem.
>
> I suspect a bug in one of the underlying libraries.
>
> Any further suggestions on how to troubleshoot?
>
> Thanks.   When I finally find the solution, I'll post my results.
>
> -N
>
> On Fri, Oct 26, 2012 at 11:21 PM, John Dickinson <me@xxxxxx> wrote:
>
>> A 507 is returned by the object servers in 2 situations: 1) the drives
>> are full or 2) the drives have been unmounted because of disk error.
>>
>> It's highly likely that you simply have full drives. Remember that the
>> usable space in your cluster is 1/N where N = replica count. As an example,
>> with 3 replicas and 5 nodes with a single 1TB drive each, you only have
>> about 1.6TB available for data.
>>
>> As Pete suggested in his response, how big are your drives, and what does
>> `df` tell you?
>>
>> --John
>>
>>
>> On Oct 26, 2012, at 5:26 PM, Nathan Trueblood <nathan@xxxxxxxxxxxxxxxx>
>> wrote:
>>
>> > Hey folks-
>> >
>> > I'm trying to figure out what's going wrong with my Swift deployment on
>> a small cluster of "mini" servers.   I have a small test cluster (5 storage
>> nodes, 1 proxy) of mini-servers that are ARM-based.   The proxy is a
>> regular, Intel-based server with plenty of RAM.   The
>> object/account/container servers are relatively small, with 2GB of RAM per
>> node.
>> >
>> > Everything starts up fine, but now I'm trying to troubleshoot a strange
>> problem.   After I successfully upload a few test files, it seems like the
>> storage system stops responding and the proxy gives me a 503 error.
>> >
>> > Here's the test sequence I run on my proxy:
>> >
>> > lab@proxy01:~/bin$ ./swiftcl.sh stat
>> > swift -A http://proxy01:8080/auth/v1.0 -U system:root -K testpass stat
>> >    Account: AUTH_system
>> > Containers: 5
>> >    Objects: 4
>> >      Bytes: 47804968
>> > Accept-Ranges: bytes
>> > X-Timestamp: 1351294912.72119
>> > lab@proxy01:~/bin$ ./swiftcl.sh upload myfiles1 /home/lab/bigfile1
>> > swift -A http://proxy01:8080/auth/v1.0 -U system:root -K testpass
>> upload myfiles1 /home/lab/bigfile1
>> > home/lab/bigfile1
>> > lab@proxy01:~/bin$ ./swiftcl.sh upload myfiles2 /home/lab/bigfile1
>> > swift -A http://proxy01:8080/auth/v1.0 -U system:root -K testpass
>> upload myfiles2 /home/lab/bigfile1
>> > home/lab/bigfile1
>> > lab@proxy01:~/bin$ ./swiftcl.sh upload myfiles3 /home/lab/bigfile1
>> > swift -A http://proxy01:8080/auth/v1.0 -U system:root -K testpass
>> upload myfiles3 /home/lab/bigfile1
>> > home/lab/bigfile1
>> > lab@proxy01:~/bin$ ./swiftcl.sh upload myfiles4 /home/lab/bigfile1
>> > swift -A http://proxy01:8080/auth/v1.0 -U system:root -K testpass
>> upload myfiles4 /home/lab/bigfile1
>> > home/lab/bigfile1
>> > lab@proxy01:~/bin$ ./swiftcl.sh upload myfiles5 /home/lab/bigfile1
>> > swift -A http://proxy01:8080/auth/v1.0 -U system:root -K testpass
>> upload myfiles5 /home/lab/bigfile1
>> > Object PUT failed:
>> http://172.16.1.111:8080/v1/AUTH_system/myfiles5/home/lab/bigfile1 503
>> Service Unavailable  [first 60 chars of response] 503 Service Unavailable
>> >
>> > The server is currently unavailable
>> > lab@proxy01:~/bin$ ./swiftcl.sh stat
>> > swift -A http://proxy01:8080/auth/v1.0 -U system:root -K testpass stat
>> >    Account: AUTH_system
>> > Containers: 6
>> >    Objects: 5
>> >      Bytes: 59756210
>> > Accept-Ranges: bytes
>> > X-Timestamp: 1351294912.72119
>> >
>> > Here's the corresponding log on the Proxy:
>> >
>> > Oct 26 17:06:52 proxy01 proxy-server - 127.0.0.1 27/Oct/2012/00/06/52
>> GET /auth/v1.0/ HTTP/1.0 200 - - - - - - - - 0.0010
>> > Oct 26 17:07:13 proxy01 proxy-server - 127.0.0.1 27/Oct/2012/00/07/13
>> GET /auth/v1.0/ HTTP/1.0 200 - - - - - - - - 0.0017
>> > Oct 26 17:07:13 proxy01 proxy-server - 127.0.0.1 27/Oct/2012/00/07/13
>> GET /auth/v1.0/ HTTP/1.0 200 - - - - - - - - 0.0016
>> > Oct 26 17:07:22 proxy01 proxy-server - 127.0.0.1 27/Oct/2012/00/07/22
>> GET /auth/v1.0/ HTTP/1.0 200 - - - - - - - - 0.0010
>> > Oct 26 17:07:22 proxy01 proxy-server - 127.0.0.1 27/Oct/2012/00/07/22
>> GET /auth/v1.0/ HTTP/1.0 200 - - - - - - - - 0.0016
>> > Oct 26 17:07:27 proxy01 proxy-server - 127.0.0.1 27/Oct/2012/00/07/27
>> GET /auth/v1.0/ HTTP/1.0 200 - - - - - - - - 0.0010
>> > Oct 26 17:07:27 proxy01 proxy-server - 127.0.0.1 27/Oct/2012/00/07/27
>> GET /auth/v1.0/ HTTP/1.0 200 - - - - - - - - 0.0016
>> > Oct 26 17:07:27 proxy01 proxy-server Handoff requested (1) (txn:
>> tx6946419daba54efe9c2878f8a2a78f88) (client_ip: 172.16.1.111)
>> > Oct 26 17:07:27 proxy01 proxy-server Handoff requested (2) (txn:
>> tx6946419daba54efe9c2878f8a2a78f88) (client_ip: 172.16.1.111)
>> > Oct 26 17:07:33 proxy01 proxy-server - 127.0.0.1 27/Oct/2012/00/07/33
>> GET /auth/v1.0/ HTTP/1.0 200 - - - - - - - - 0.0010
>> > Oct 26 17:07:33 proxy01 proxy-server - 127.0.0.1 27/Oct/2012/00/07/33
>> GET /auth/v1.0/ HTTP/1.0 200 - - - - - - - - 0.0016
>> > Oct 26 17:07:33 proxy01 proxy-server Handoff requested (1) (txn:
>> tx5f9659f74cb2491f9a63cbb84f680c5c) (client_ip: 172.16.1.111)
>> > Oct 26 17:07:33 proxy01 proxy-server Handoff requested (2) (txn:
>> tx5f9659f74cb2491f9a63cbb84f680c5c) (client_ip: 172.16.1.111)
>> > Oct 26 17:07:39 proxy01 proxy-server - 127.0.0.1 27/Oct/2012/00/07/39
>> GET /auth/v1.0/ HTTP/1.0 200 - - - - - - - - 0.0009
>> > Oct 26 17:07:39 proxy01 proxy-server - 127.0.0.1 27/Oct/2012/00/07/39
>> GET /auth/v1.0/ HTTP/1.0 200 - - - - - - - - 0.0009
>> > Oct 26 17:07:39 proxy01 proxy-server Handoff requested (1) (txn:
>> tx8dc917a4a8c84c40a4429b7bab0323c6) (client_ip: 172.16.1.111)
>> > Oct 26 17:07:39 proxy01 proxy-server Handoff requested (2) (txn:
>> tx8dc917a4a8c84c40a4429b7bab0323c6) (client_ip: 172.16.1.111)
>> > Oct 26 17:07:40 proxy01 proxy-server Object PUT returning 503, 1/2
>> required connections (txn: tx8dc917a4a8c84c40a4429b7bab0323c6) (client_ip:
>> 172.16.1.111)
>> > Oct 26 17:07:41 proxy01 proxy-server Object PUT returning 503, 1/2
>> required connections (txn: tx07a1f5dfaa23445a88eaa4a2ade68466) (client_ip:
>> 172.16.1.111)
>> > Oct 26 17:07:43 proxy01 proxy-server Object PUT returning 503, 1/2
>> required connections (txn: tx938d08b706844db3886695b798bd9fad) (client_ip:
>> 172.16.1.111)
>> > Oct 26 17:07:47 proxy01 proxy-server Object PUT returning 503, 1/2
>> required connections (txn: txa35e9f8a54924f139e13d6f3a5dc457f) (client_ip:
>> 172.16.1.111)
>> > Oct 26 17:07:55 proxy01 proxy-server Object PUT returning 503, 1/2
>> required connections (txn: txc2f5c35b54a14b32a2d0178423bc7771) (client_ip:
>> 172.16.1.111)
>> > Oct 26 17:08:11 proxy01 proxy-server Object PUT returning 503, 1/2
>> required connections (txn: txd8df89e76edd40f3b4c04091b3cbc857) (client_ip:
>> 172.16.1.111)
>> > Oct 26 17:08:17 proxy01 proxy-server - 127.0.0.1 27/Oct/2012/00/08/17
>> GET /auth/v1.0/ HTTP/1.0 200 - - - - - - - - 0.0011
>> >
>> > And here's the log from one of the Storage Nodes:
>> >
>> > Oct 26 17:07:20 data05 container-server 192.168.1.111 - -
>> [27/Oct/2012:00:07:20 +0000] "PUT /sda6/200589/AUTH_system/myfiles1" 201 -
>> "tx063cd0643ef64d169b3bc5a86a808df4" "-" "-" 0.0510
>> > Oct 26 17:07:20 data05 account-server 192.168.1.204 - -
>> [27/Oct/2012:00:07:20 +0000] "PUT /sda6/116021/AUTH_system/myfiles1" 201 -
>> "tx063cd0643ef64d169b3bc5a86a808df4" "-" "-" 0.0154 ""
>> > Oct 26 17:07:20 data05 object-server 192.168.1.111 - -
>> [27/Oct/2012:00:07:20 +0000] "HEAD
>> /sda6/36256/AUTH_system/myfiles1/home/lab/bigfile1" 404 - "-"
>> "tx6f1018e5da4d4974a85d544a0874a581" "-" 0.0015
>> > Oct 26 17:07:21 data05 object-server 192.168.1.111 - -
>> [27/Oct/2012:00:07:21 +0000] "PUT
>> /sda6/36256/AUTH_system/myfiles1/home/lab/bigfile1" 201 - "-"
>> "tx59f931d3281d41159eba0e0c88c18107" "-" 1.0255
>> > Oct 26 17:07:21 data05 container-server 192.168.1.202 - -
>> [27/Oct/2012:00:07:21 +0000] "PUT
>> /sda6/200589/AUTH_system/myfiles1/home/lab/bigfile1" 201 -
>> "tx59f931d3281d41159eba0e0c88c18107" "-" "-" 0.0218
>> > Oct 26 17:07:24 data05 account-replicator Beginning replication run
>> > Oct 26 17:07:25 data05 account-replicator Replication run OVER
>> > Oct 26 17:07:25 data05 account-replicator Attempted to replicate 1 dbs
>> in 0.21688 seconds (4.61073/s)
>> > Oct 26 17:07:25 data05 account-replicator Removed 0 dbs
>> > Oct 26 17:07:25 data05 account-replicator 2 successes, 0 failures
>> > Oct 26 17:07:25 data05 account-replicator no_change:0 ts_repl:0 diff:2
>> rsync:0 diff_capped:0 hashmatch:0 empty:0
>> > Oct 26 17:07:28 data05 account-server 192.168.1.204 - -
>> [27/Oct/2012:00:07:28 +0000] "PUT /sda6/116021/AUTH_system/myfiles1" 201 -
>> "-" "-" "-" 0.0021 ""
>> > Oct 26 17:07:29 data05 account-server 192.168.1.205 - -
>> [27/Oct/2012:00:07:29 +0000] "PUT /sda6/116021/AUTH_system/myfiles2" 201 -
>> "txbace9f92a41a4645beb9159a802fc12d" "-" "-" 0.0178 ""
>> > Oct 26 17:07:30 data05 object-server 192.168.1.111 - -
>> [27/Oct/2012:00:07:30 +0000] "PUT
>> /sda6/63086/AUTH_system/myfiles2/home/lab/bigfile1" 201 - "-"
>> "txa4fac7ceab2948ae9010b4ce4cb56b97" "-" 0.7135
>> > Oct 26 17:07:33 data05 object-replicator Starting object replication
>> pass.
>> > Oct 26 17:07:33 data05 object-replicator 4/4 (100.00%) partitions
>> replicated in 0.17s (23.71/sec, 0s remaining)
>> > Oct 26 17:07:33 data05 object-replicator 4 suffixes checked - 50.00%
>> hashed, 0.00% synced
>> > Oct 26 17:07:33 data05 object-replicator Partition times: max 0.1012s,
>> min 0.0164s, med 0.0273s
>> > Oct 26 17:07:33 data05 object-replicator Object replication complete.
>> (0.00 minutes)
>> > Oct 26 17:07:34 data05 account-server 192.168.1.206 - -
>> [27/Oct/2012:00:07:34 +0000] "PUT /sda6/116021/AUTH_system/myfiles3" 201 -
>> "txa547450c156d4df9ad7e42c04dcabd8f" "-" "-" 0.0168 ""
>> > Oct 26 17:07:34 data05 container-server 192.168.1.111 - -
>> [27/Oct/2012:00:07:34 +0000] "PUT /sda6/118594/AUTH_system/myfiles3" 202 -
>> "txa547450c156d4df9ad7e42c04dcabd8f" "-" "-" 0.0399
>> > Oct 26 17:07:35 data05 container-server 192.168.1.206 - -
>> [27/Oct/2012:00:07:35 +0000] "PUT
>> /sda6/118594/AUTH_system/myfiles3/home/lab/bigfile1" 201 -
>> "tx6946419daba54efe9c2878f8a2a78f88" "-" "-" 0.0022
>> > Oct 26 17:07:35 data05 object-server 192.168.1.111 - -
>> [27/Oct/2012:00:07:35 +0000] "PUT
>> /sda6/35436/AUTH_system/myfiles3/home/lab/bigfile1" 201 - "-"
>> "tx6946419daba54efe9c2878f8a2a78f88" "-" 0.6806
>> > Oct 26 17:07:36 data05 account-server 192.168.1.205 - -
>> [27/Oct/2012:00:07:36 +0000] "PUT /sda6/116021/AUTH_system/myfiles2" 201 -
>> "-" "-" "-" 0.0021 ""
>> > Oct 26 17:07:37 data05 object-auditor Begin object audit "forever" mode
>> (ZBF)
>> > Oct 26 17:07:37 data05 object-auditor Object audit (ZBF) "forever" mode
>> completed: 0.04s. Total quarantined: 0, Total errors: 0, Total files/sec:
>> 89.46 , Total bytes/sec: 0.00, Auditing time: 0.04, Rate: 0.95
>> > Oct 26 17:07:40 data05 account-server 192.168.1.204 - -
>> [27/Oct/2012:00:07:40 +0000] "PUT /sda6/116021/AUTH_system/myfiles4" 201 -
>> "txe095c94f8e5c4c4681a8d6a9c330bb7b" "-" "-" 0.0200 ""
>> > Oct 26 17:07:40 data05 container-server 192.168.1.111 - -
>> [27/Oct/2012:00:07:40 +0000] "PUT /sda6/217542/AUTH_system/myfiles4" 202 -
>> "txe095c94f8e5c4c4681a8d6a9c330bb7b" "-" "-" 0.0671
>> > Oct 26 17:07:40 data05 container-server 192.168.1.206 - -
>> [27/Oct/2012:00:07:40 +0000] "PUT
>> /sda6/217542/AUTH_system/myfiles4/home/lab/bigfile1" 201 -
>> "tx5f9659f74cb2491f9a63cbb84f680c5c" "-" "-" 0.0023
>> > Oct 26 17:07:40 data05 object-server 192.168.1.111 - -
>> [27/Oct/2012:00:07:40 +0000] "PUT
>> /sda6/49697/AUTH_system/myfiles4/home/lab/bigfile1" 201 - "-"
>> "tx5f9659f74cb2491f9a63cbb84f680c5c" "-" 0.6038
>> > Oct 26 17:07:44 data05 container-updater Begin container update sweep
>> > Oct 26 17:07:44 data05 container-replicator Beginning replication run
>> > Oct 26 17:07:44 data05 account-server 192.168.1.206 - -
>> [27/Oct/2012:00:07:44 +0000] "PUT /sda6/116021/AUTH_system/myfiles1" 201 -
>> "-" "-" "-" 0.0021 ""
>> > Oct 26 17:07:44 data05 account-server 192.168.1.206 - -
>> [27/Oct/2012:00:07:44 +0000] "PUT /sda6/116021/AUTH_system/myfiles3" 201 -
>> "-" "-" "-" 0.0021 ""
>> > Oct 26 17:07:44 data05 account-server 192.168.1.206 - -
>> [27/Oct/2012:00:07:44 +0000] "PUT /sda6/116021/AUTH_system/myfiles4" 201 -
>> "-" "-" "-" 0.0021 ""
>> > Oct 26 17:07:45 data05 account-server 192.168.1.203 - -
>> [27/Oct/2012:00:07:45 +0000] "PUT /sda6/116021/AUTH_system/myfiles2" 201 -
>> "-" "-" "-" 0.0023 ""
>> > Oct 26 17:07:45 data05 account-server 192.168.1.203 - -
>> [27/Oct/2012:00:07:45 +0000] "PUT /sda6/116021/AUTH_system/myfiles1" 201 -
>> "-" "-" "-" 0.0020 ""
>> > Oct 26 17:07:45 data05 container-replicator Replication run OVER
>> > Oct 26 17:07:45 data05 account-server 192.168.1.203 - -
>> [27/Oct/2012:00:07:45 +0000] "PUT /sda6/116021/AUTH_system/myfiles3" 201 -
>> "-" "-" "-" 0.0223 ""
>> > Oct 26 17:07:45 data05 container-replicator Attempted to replicate 5
>> dbs in 0.83001 seconds (6.02399/s)
>> > Oct 26 17:07:45 data05 container-replicator Removed 0 dbs
>> > Oct 26 17:07:45 data05 container-replicator 10 successes, 0 failures
>> > Oct 26 17:07:45 data05 container-replicator no_change:8 ts_repl:0
>> diff:2 rsync:0 diff_capped:0 hashmatch:0 empty:0
>> > Oct 26 17:07:45 data05 container-updater Container update sweep
>> completed: 0.98s
>> > Oct 26 17:07:46 data05 account-server 192.168.1.205 - -
>> [27/Oct/2012:00:07:46 +0000] "PUT /sda6/116021/AUTH_system/myfiles5" 201 -
>> "tx7ba0264da03c485ca3c3b4048f6a3d8c" "-" "-" 0.0098 ""
>> > Oct 26 17:07:46 data05 container-server 192.168.1.111 - -
>> [27/Oct/2012:00:07:46 +0000] "PUT /sda6/122255/AUTH_system/myfiles5" 202 -
>> "tx7ba0264da03c485ca3c3b4048f6a3d8c" "-" "-" 0.0465
>> > Oct 26 17:07:46 data05 object-server 192.168.1.111 - -
>> [27/Oct/2012:00:07:46 +0000] "HEAD
>> /sda6/150861/AUTH_system/myfiles5/home/lab/bigfile1" 404 - "-"
>> "txf08e8b91b2894a9da099f26b5300327b" "-" 0.0011
>> > Oct 26 17:07:46 data05 object-server 192.168.1.111 - -
>> [27/Oct/2012:00:07:46 +0000] "PUT
>> /sda6/150861/AUTH_system/myfiles5/home/lab/bigfile1" 507 - "-"
>> "tx8dc917a4a8c84c40a4429b7bab0323c6" "-" 0.0031
>> >
>> > Right now, there is nothing special in the object-server.conf:
>> >
>> > [DEFAULT]
>> > bind_ip = 192.168.1.206
>> > workers = 1
>> >
>> > [pipeline:main]
>> > pipeline = object-server
>> >
>> > [app:object-server]
>> > use = egg:swift#object
>> >
>> > [object-replicator]
>> >
>> > [object-updater]
>> >
>> > [object-auditor]
>> >
>> > [object-server]
>> > set log_level = DEBUG
>> >
>> > My general question is: how do I troubleshoot this?   I've tried
>> turning on debug logging on the Object Server, but I don't get any
>> additional clues.
>> >
>> > The Object-servers do give a 507 error, which might indicate a disk
>> problem, but there is nothing wrong with the storage drive.   And also if
>> there was a fundamental drive problem then I wouldn't be able to upload
>> objects in the first place.
>> >
>> > My best guess at the moment is that I should adjust the configuration
>> of the object servers to reflect their lower performance.   What would I
>> adjust, the cache size?   I'm not seeing any log messages that would
>> indicate a time-out.
>> >
>> > Thanks in advance for your advice.
>> >
>> > -N
>> > _______________________________________________
>> > Mailing list: https://launchpad.net/~openstack
>> > Post to     : openstack@xxxxxxxxxxxxxxxxxxx
>> > Unsubscribe : https://launchpad.net/~openstack
>> > More help   : https://help.launchpad.net/ListHelp
>>
>>
>
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>


-- 
  杨雨
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