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https://issues.apache.org/jira/browse/TS-394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12896236#action_12896236
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Zhao Yongming commented on TS-394:
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after track from the v2.1 code, I am working on the track of the first commit
of branch trunk, 'TS-196:Merged
traffic-branchdev(trafficserver/traffic/branches/dev) changes r891822:915884
into trunk. Tested: ubuntu904, forward and reverse proxy.' this is a merge from
dev branch. which led to the cluster communication out of function. will try to
test dev branch to get the clear view.
> taffic_server process sig abort in full cluster mode
> ----------------------------------------------------
>
> Key: TS-394
> URL: https://issues.apache.org/jira/browse/TS-394
> Project: Traffic Server
> Issue Type: Bug
> Components: Core
> Environment: ATS in full cluster mode is unusable, the traffic_server
> process will get sig abort by every request. code in trunk tested.
> Reporter: Zhao Yongming
> Priority: Critical
> Fix For: 2.3.0
>
> Attachments: traffic_full_cluster_sig_abort.patch
>
>
> I am trying to setup full cluster mode, but geting connection abort during
> every request. after tcpdump, it seems that ATS got the correct source file
> from backend, but do not send out the full file( with tcp reset during http
> transfer to client), then i am trying to figure out the root cause.
> with debug log enabled in records.config:
> CONFIG proxy.config.diags.debug.enabled INT 1
> CONFIG proxy.config.diags.debug.tags STRING http.*|cluster.*
> I got the following log from traffic.out:
> [Jun 22 15:19:11.296] Manager {139809315796768} ERROR:
> [LocalManager::pollMgmtProcessServer] Server Process terminated due to Sig 6:
> Aborted
> [Jun 22 15:19:11.296] Manager {139809315796768} ERROR: (last system error 2:
> No such file or directory)
> [Jun 22 15:19:11.296] Manager {139809315796768} ERROR: [Alarms::signalAlarm]
> Server Process was reset
> [Jun 22 15:19:11.296] Manager {139809315796768} ERROR: (last system error 2:
> No such file or directory)
> after strace traffic_server, I got the following info:
> [pid 19830] 0.000306 <... epoll_wait resumed> {}, 32768, 10) = 0
> [pid 19830] 0.000031 gettimeofday({1277256740, 532763}, NULL) = 0
> [pid 19830] 0.000181 write(2, "FATAL: ClusterHandler.cc:2047: failed
> assert `ntodo >= 0`\n", 58) = 58
> [pid 19830] 0.000076 gettimeofday({1277256740, 533020}, NULL) = 0
> [pid 19830] 0.000071 socket(PF_FILE, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 101
> [pid 19830] 0.000062 connect(101, {sa_family=AF_FILE, path="/dev/log"},
> 110) = -1 ENOENT (No such file or directory)
> [pid 19830] 0.000074 close(101) = 0
> [pid 19830] 0.000056 write(2, "/usr/bin/traffic_server", 23) = 23
> [pid 19830] 0.000050 write(2, " - STACK TRACE: \n", 17) = 17
> [pid 19830] 0.000289 futex(0x2b3a08e6a5b0, FUTEX_WAKE_PRIVATE,
> 2147483647) = 0
> [pid 19830] 0.000251 futex(0x2b3a08b11190, FUTEX_WAKE_PRIVATE,
> 2147483647) = 0
> [pid 19830] 0.000656 writev(2, [{"/usr/bin/traffic_server", 23}, {"(",
> 1}, {"ink_fatal_va", 12}, {"+0x", 3}, {"ab", 2}, {")", 1}, {"[0x", 3},
> {"6dcdab", 6}, {"]\n", 2}], 9) = 53
> I have fix the bug by comment out ClusterHandler.cc:2047. patch will followed.
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