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nix-super/tests/gc-concurrent.sh

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* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-02-01 00:01:55 +02:00
storeExpr1=$($TOP/src/nix-instantiate/nix-instantiate gc-concurrent.nix)
outPath1=$($TOP/src/nix-store/nix-store -q $storeExpr1)
storeExpr2=$($TOP/src/nix-instantiate/nix-instantiate gc-concurrent2.nix)
outPath2=$($TOP/src/nix-store/nix-store -q $storeExpr2)
* Add a test to check whether concurrent garbage collection (i.e., running the collector while builds are in progress) works correctly. The test currently fails.
2005-01-28 22:36:46 +02:00
* Make check fixes.
2005-02-01 19:50:48 +02:00
ln -s $storeExpr2 "$NIX_STATE_DIR"/gcroots/foo2
* Acquire a global GC lock to prevent new temporary root files from being created after the garbage collector has read the temproots directory. This blocks the creation of new processes, but the garbage collector could periodically release the GC lock to allow them to run.
2005-02-01 00:23:49 +02:00
* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-02-01 00:01:55 +02:00
# Start build #1 in the background. It starts immediately.
$TOP/src/nix-store/nix-store -rvv "$storeExpr1" &
pid1=$!
* Add a test to check whether concurrent garbage collection (i.e., running the collector while builds are in progress) works correctly. The test currently fails.
2005-01-28 22:36:46 +02:00
* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-02-01 00:01:55 +02:00
# Start build #2 in the background after 3 seconds.
(sleep 3 && $TOP/src/nix-store/nix-store -rvv "$storeExpr2") &
pid2=$!
* Add a test to check whether concurrent garbage collection (i.e., running the collector while builds are in progress) works correctly. The test currently fails.
2005-01-28 22:36:46 +02:00
* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-02-01 00:01:55 +02:00
# Run the garbage collector while the build is running. Note: the GC
# sleeps for *another* 2 seconds after acquiring the GC lock. This
# checks whether build #1
* Add a test to check whether concurrent garbage collection (i.e., running the collector while builds are in progress) works correctly. The test currently fails.
2005-01-28 22:36:46 +02:00
sleep 2
* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-02-01 00:01:55 +02:00
NIX_DEBUG_GC_WAIT=1 $NIX_BIN_DIR/nix-collect-garbage -vvvvv
# Wait for build #1/#2 to finish.
echo waiting for pid $pid1 to finish...
wait $pid1
echo waiting for pid $pid2 to finish...
wait $pid2
* Add a test to check whether concurrent garbage collection (i.e., running the collector while builds are in progress) works correctly. The test currently fails.
2005-01-28 22:36:46 +02:00
* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-02-01 00:01:55 +02:00
# Check that the root of build #1 and its dependencies haven't been
# deleted.
cat $outPath1/foobar
cat $outPath1/input-2/bar
* Add a test to check whether concurrent garbage collection (i.e., running the collector while builds are in progress) works correctly. The test currently fails.
2005-01-28 22:36:46 +02:00
* Acquire a global GC lock to prevent new temporary root files from being created after the garbage collector has read the temproots directory. This blocks the creation of new processes, but the garbage collector could periodically release the GC lock to allow them to run.
2005-02-01 00:23:49 +02:00
# Build #2 should have failed because its derivation got garbage collected.
* Add a test for a more subtle race: a process starting after the temporary root files have been read but creating outputs before the store directory has been read.
2005-02-01 00:01:55 +02:00
cat $outPath2/foobar
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