- 16 Aug, 2018 14 commits
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Dridi Boukelmoune authored
Unless -1 is used too, but -1 already implies -d so it doesn't really count. Fixes #2721
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Dridi Boukelmoune authored
This reverts commit d1b78e8d. The problem is that upon exiting the screen is likely to be cleared on most terminals (not the one we embed in varnishtest for example) so it doesn't give any chance to the user to read the output. The consensus is to restore the previous behavior and fix the manual instead. Conflicts: bin/varnishtest/tests/u00004.vtc bin/varnishtop/varnishtop.c Breaks: bin/varnishtest/tests/r02686.vtc Refs #2721
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Federico G. Schwindt authored
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Dag Haavi Finstad authored
Fixes: #2572
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Poul-Henning Kamp authored
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Poul-Henning Kamp authored
with varnish user etc.
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Nils Goroll authored
With the req.grace reintroduction, we got two identical cases where we insert a busy object: When there is no exp_oc (obviously) or when the exp_oc does not fulfil the req.grace limit. This lead to some code duplication. IMHO, handling first the case where we need to insert a busy object (with or without exp_oc) and then handling the exception that we do not wait on a busy object if the exp_oc is in grace is cleaner. Please note that comparing this change using diff -u does not make much sense, I believe the simplicity of the reshuffling change becomes clear when looking at the old and new code side-by-side
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Nils Goroll authored
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Pål Hermunn Johansen authored
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Pål Hermunn Johansen authored
The main point is to clearly recomend using req.grace for the most common use case - using different grace time when the backend is healthy.
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Pål Hermunn Johansen authored
Right now there are use cases that cannot be solved without req.ttl, so we undeprecate it.
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Pål Hermunn Johansen authored
The req.grace variable can be set in vcl_recv to cap the grace of objects in the cache, in the same way as in 3.0.x The "keep" behavior changes with this patch. We now always go to vcl_miss when the expired object is out of grace, or we go to the waiting list. The result is that it is no longer possible to deliver a "keep" object in vcl_hit. Note that when we get to vcl_miss, we will still have the 304 candidate, but without the detour by vcl_hit. This commit changes VCL, but only slightly, so we aim to back port this to earlier versions of Varnish Cache. Refs: #1799 and #2519
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Geoff Simmons authored
address family is neither of AF_INET or AF_INET6. This means that UNKNOWN is sent in probes to UDS backends when .proxy_header=1 is set. Also verify that a UDS backend receives PROXY LOCAL in a probe when .proxy_header=2 is set. Fixes #2702 Closes #2726
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Dag Haavi Finstad authored
Since we verify that header blocks are not interleaved, and we zero the struct h2h_decode on every new header block, there is no need to malloc a separate struct h2h_decode per stream.
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- 14 Aug, 2018 19 commits
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Nils Goroll authored
... not in the caller
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Nils Goroll authored
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Dag Haavi Finstad authored
Future-proofing to avoid mistakenly introducing another race down the line.
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Dag Haavi Finstad authored
The current flow control code's use of h2->cond is racy. h2->cond is already used for handing over a DATA frame to a stream thread. In the event that we have both streams waiting on this condvar for window updates and at the same time the rxthread gets signaled for a DATA frame, we could end up waking up the wrong thread and the rxthread gets stuck forever. This commit addresses this by using a separate condvar for window updates. An alternative would be to always issue a broadcast on h2->cond instead of signal, but I found this approach much cleaner. Probably fixes: #2623
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Nils Goroll authored
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Nils Goroll authored
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Nils Goroll authored
For ban statistics, we updated VSC_C_main directly, so if we raced Pool_Sumstat(), that could undo our changes. This patch fixes statistics by using the per-worker statistics cache except for the following remaining corner cases: * bans_persisted_* counters receive absolut updates, which does not seem to fit the incremental updates via the per-worker stats. I've kept these cases untouched and marked with comments. Worst that should happen here are temporary inconsistencies until the next absolute update. * For BAN_Reload(), my understanding is that it should only happen during init, so we continue to update VSC_C_main directly. * For bans via the cli, we would need to grab the wstat lock, which, at the moment, is private to the worker implementation. Until we make a change here, we could miss a ban increment from the cli. * for VCL bans from vcl_init / fini, we do not have access to the worker struct at the moment, so for now we also accept an inconsistency here. Fixes #2716 for relevant cases
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Federico G. Schwindt authored
A bound socket will timeout instead of refusing the connection. Should fix b00015.vtc under macos.
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Dag Haavi Finstad authored
The previous commit made the assumption that END_STREAM is in the last of the frames in a header block. This is not necessarily the case.
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Dag Haavi Finstad authored
Previously we've been incorrectly transtitioning to CLOS_REM on END_HEADERS, which prevents us from seeing if a client incorrectly transmitted a DATA frame on a closed stream. This slightly complicates things in that we can now be in state OPEN with an inactive hpack decoding state, and we need to make sure on cleanup if that has already been finalized. This would be simpler if the h/2 spec had split the OPEN state in two parts, with an extra state transition on END_HEADERS. Again big thanks to @xcir for his help in diagnosing this. Fixes: #2623
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Federico G. Schwindt authored
Should help with the ASAN builds in travis.
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Federico G. Schwindt authored
Should address #2666 and #2711.
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Dag Haavi Finstad authored
Tune down h2_rx_window_low_water to make sure we don't get a window_update racing against the response frames. Fixes: #2709
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Dag Haavi Finstad authored
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Dag Haavi Finstad authored
If we failed to schedule a thread for a stream and it's not cleaned up prior to handling a request body, the rxthread would sit around waiting in h2_rx_data indefinitely.
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Poul-Henning Kamp authored
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Poul-Henning Kamp authored
the backend might be going away, and since we cannot afford to hold the lock over VTP_Open(), we have to pull the VBE_vsc knowledge one level back up. Overlooked by: slink, phk Spotted by: Coverity Conflicts: bin/varnishd/cache/cache_backend.c bin/varnishd/cache/cache_backend.h
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Poul-Henning Kamp authored
termination of the rxbuf. Found by: fgs
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Lucas Guardalben authored
This adds -j support to the command varnishadm ping -j Tested on RFC4627/RFC7159/ECMA404 standards (all valid JSON) Conflicts: bin/varnishtest/tests/b00008.vtc
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- 20 Jun, 2018 7 commits
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Poul-Henning Kamp authored
Found by: fgs & ASAN
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Poul-Henning Kamp authored
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Poul-Henning Kamp authored
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Dag Haavi Finstad authored
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Martin Blix Grydeland authored
Previous fix for #2285 (and the duplicate #2624) was missdiagnosed. The problem stems from a wrong assumption that the number of bytes already pipelined will be less than maxbytes, with maxbytes beeing the maximum number of bytes the HTC_RxStuff may need to get a full work unit. That assumption may fail during the H/1 to H/2 upgrade path where maxbytes change with the context, or during runtime changing of parameters. This patch makes HTC_RxStuff not assert if the pipelined data turned out to exceed maxbytes, but return overflow if we run out of workspace. (#2624 has received a workaround in the H/2 code that perhaps should be reverted).
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Martin Blix Grydeland authored
Remove old and now invalid assert. Change order of evaluation in if-statement to make sure we don't step outside rxbuf_e.
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Nils Goroll authored
Previously, tracing the root cause of probe failures was unnecessarily complicated by the fact that the probe window bits and timing information were the only source of information when no HTTP status line was logged and for the case of all the bits being zero, almost impossible (e.g. differentiating between a local and remote connection open failure). We now re-use the response field for failing probes also.
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