111465d72d test: Remove unused attempts parameter from wait_until (Fabian Jahr)
5468a23eb9 test: Add check_interval parameter to wait_until (Fabian Jahr)
16c87d91fd test: Introduce ensure_for helper (Fabian Jahr)
Pull request description:
A repeating pattern in the functional tests is that the test sleeps for a while to ensure that a certain condition is still true after some amount of time has elapsed. Most recently a new case of this was added in #30807. This PR here introduces an `ensure` helper to streamline this functionality.
Some approach considerations:
- It is possible to construct this by reusing `wait_until` and wrapping it in `try` internally. However, the logger output of the failing wait would still be printed which seems irritating. So I opted for simplified but similar internals to `wait_until`.
- This implementation starts for a failure in the condition right away which has the nice side-effect that it might give feedback on a failure earlier than is currently the case. However, in some cases, it may be expected that the condition may still be false at the beginning and then turns true until time has run out, something that would work when the test sleeps without checking in a loop. I decided against this design (and even against adding it as an option) because such a test design seems like it would be racy either way.
- I have also been going back and forth on naming. To me `ensure` works well but I am also not a native speaker, happy consider a different name if others don't think it's clear enough.
ACKs for top commit:
maflcko:
re-ACK 111465d72d🍋
achow101:
ACK 111465d72d
tdb3:
code review re ACK 111465d72d
furszy:
utACK 111465d72d
Tree-SHA512: ce01a4f3531995375a6fbf01b27d51daa9d4c3d7cd10381be6e86ec5925d2965861000f7cb4796b8d40aabe3b64c4c27e2811270e4e3c9916689575b8ba4a2aa
e710cefd57 rest: read raw block in rest_block and deserialize for json (Andrew Toth)
95ce0783a6 rpc: read raw block in getblock and deserialize for verbosity > 0 (Andrew Toth)
0865ab8712 test: check more details on zmq raw block response (Andrew Toth)
38265cc14e zmq: read raw block with ReadRawBlockFromDisk (Andrew Toth)
da338aada7 blockstorage: check nPos in ReadRawBlockFromDisk before seeking back (Andrew Toth)
Pull request description:
For the `getblock` endpoint with `verbosity=0`, the `rest_block` REST endpoint for `bin` and `hex`, and zmq `NotifyBlock` we don't have to deserialize the block since we're just sending the raw data. This PR uses `ReadRawBlockFromDisk` instead of `ReadBlockFromDisk` to serve these requests, and only deserializes for `verbosity > 0` and `json` REST requests. See benchmarks in https://github.com/bitcoin/bitcoin/pull/26684.
Benchmarked using ApacheBench. Requesting block 750,000 in binary 10k times on a single core (set `-rest=1` in config):
`ab -n 10000 -c 1 "http://127.0.0.1:8332/rest/block/0000000000000000000592a974b1b9f087cb77628bb4a097d5c2c11b3476a58e.bin"`
On master, mean time 15ms.
On this branch, mean time 1ms.
For RPC
```
echo '{"jsonrpc": "1.0", "id": "curltest", "method": "getblock", "params": ["0000000000000000000592a974b1b9f087cb77628bb4a097d5c2c11b3476a58e", 0]}' > /tmp/data.json
ab -p /tmp/data.json -n 1000 -c 1 -A user:password "http://127.0.0.1:8332/"
```
On master, mean time 32ms
On this branch, mean time 13ms
ACKs for top commit:
achow101:
re-ACK e710cefd57
Tree-SHA512: 4cea13c7b563b2139d041b1fdcfdb793c8cc688654ae08db07e7ee6b875c5e582b8185db3ae603abbfb06d2164724f29205774620b48c493726b991999af289e
Rather than needing to create intermediate stream variables, we can use
helper functions like `tx_from_hex` instead or access the result
directly, leading both to increased readability and less code.
Passing a list of transactions `txlist` to `create_block` appends
them to the block, hence we don't need to do that manually anymore.
The merkle root calculation can also be removed, since this is done
in the end of the helper.
The previous diff touched most files in ./test/, so bump the headers to
avoid having to touch them again for a bump later.
-BEGIN VERIFY SCRIPT-
./contrib/devtools/copyright_header.py update ./test/
-END VERIFY SCRIPT-
e6998838e5 doc: Add IPv6 address to zmq example (nthumann)
8abe5703a9 test: Add IPv6 test to zmq (nthumann)
ded449b726 zmq: Enable IPv6 on listening socket (nthumann)
Pull request description:
This PR adds support for listening on IPv6 addresses with bitcoinds ZMQ interface, just like the RPC server.
Currently, it is not possible to specify an IPv6 address, as the `ZMQ_IPV6` [socket option](http://api.zeromq.org/master:zmq-setsockopt#toc27) is not set and therefore the ZMQ initialization fails, if one does so. The absence of this option has also been noted [here](https://github.com/bitcoin/bitcoin/issues/15198#issuecomment-617378512).
With this PR one can e.g. set `-zmqpubhashblock=tcp://[::1]:28333` to listen on the IPv6 loopback address.
ACKs for top commit:
laanwj:
Code review ACK e6998838e5
theStack:
Tested ACK e6998838e5🌱
Tree-SHA512: 43c3043d8d5c79794d475926259c1be975b694db4fcc1f7750a9a28e242f0fa1b531735a63ea5777498003aa5834f6243f39742d0f3941f2f37593d0c7890700
It turned out that the "sync up" procedure of repeatedly generating a
block and waiting for a notification once with timeout is too naive in
its current form, as the following scenario could happen:
- generate block A
- receive notification, timeout happens -> repeat procedure
- generate block B
- node publishes block A notification
- receive notification, we receive the one caused by block A
-> sync-up procedure is completed
- node publishes block B
- the actual test starts
- on the first notification reception, one caused by block B is received,
rather than the one actually caused by test code, leading to failure
This change ensures that after each test block generation, we wait for
the notification that is actually caused by that block and ignore others
from possibly earlier blocks.
Co-authored-by: Jon Atack <jon@atack.com>
Speeds up the zmq test roughly by a factor of 2x (~20 sec. instead of
~40 sec.) and also avoids timeouts on the synchronization methods
(sync_mempool() / sync_blocks()) that happened with a slight chance.
This is due to the fact that there is no upper bound on the trickle
relay time, so even the default of 60s is sometimes too low. Fixed by
enabling immediate tx relay on node1.
After connecting the subscriber sockets to the node, there is no
guarantee that the node's zmq publisher interfaces are ready yet, which
means that potentially the first expected notification messages could
get lost and the test fails. Currently this is handled by just waiting
for a short period of time (200ms), which works most of the time but is
still problematic, as in some rare cases the setup time takes much
longer, even in the range of multiple seconds.
The solution in this commit approaches the problem by using a more
robust method of syncing up, originally proposed by instagibbs:
1. Generate a block on the node
2. Try to receive a notification on all subscribers
3. If all subscribers get a message within the timeout (1 second),
we are done, otherwise repeat starting from step 1
The ZMQSubscriber reception methods currently assert that the first
received publisher message has a sequence number of zero. In order to
fix the current test flakiness via "syncing up" to nodes in the setup
phase, we have to cope with the situation that messages get lost and the
first actual received message has a sequence number larger than zero.
-BEGIN VERIFY SCRIPT-
# max-depth=0 excludes test/functional/test_framework/...
FILES=$(git grep -l --max-depth 0 "connect_nodes" test/functional)
# Replace (dis)?connect_nodes(self.nodes[a], b) with self.(dis)?connect_nodes(a, b)
sed -i 's/\b\(dis\)\?connect_nodes(self\.nodes\[\(.*\)\]/self.\1connect_nodes(\2/g' $FILES
# Remove imports in the middle of a line
sed -i 's/\(dis\)\?connect_nodes, //g' $FILES
sed -i 's/, \(dis\)\?connect_nodes//g' $FILES
# Remove imports on a line by themselves
sed -i '/^\s*\(dis\)\?connect_nodes,\?$/d' $FILES
sed -i '/^from test_framework\.util import connect_nodes$/d' $FILES
-END VERIFY SCRIPT-
Co-authored-by: Elliott Jin <elliott.jin@gmail.com>
a4edb168b6 ZMQ: add options to configure outbound message high water mark, aka SNDHWM (mruddy)
Pull request description:
ZMQ: add options to configure outbound message high water mark, aka SNDHWM
This is my attempt at https://github.com/bitcoin/bitcoin/pull/13315
Tree-SHA512: a4cc3bcf179776899261a97c8c4f31f35d1d8950fd71a09a79c5c064879b38e600b26824c89c4091d941502ed5b0255390882f7d44baf9e6dc49d685a86e8edb
