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Azcopy on Mac: too many open files #2746

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pkcecw opened this issue Jul 10, 2024 · 2 comments
Open

Azcopy on Mac: too many open files #2746

pkcecw opened this issue Jul 10, 2024 · 2 comments

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@pkcecw
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pkcecw commented Jul 10, 2024

Which version of the AzCopy was used? ---> AzcopyVersion 10.24.0

Note: The version is visible when running AzCopy without any argument

Which platform are you using? (ex: Windows, Mac, Linux) ---> Mac

What command did you run? ---> azcopy cp https://xxxpip01.blob.core.windows.net/xxx/PIDxxx/" "/Users/vhcadministrator/Desktop/xxx" --overwrite=ifSourceNewer --recursive=true

What problem was encountered? ---> too many open files

How can we reproduce the problem in the simplest way? running the same command again

Have you found a mitigation/solution? No

Here is the session output:

MID-CLINIC-4-IMAC:azcopy_darwin_amd64_10.25.1 vhcadministrator$ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
file size (blocks, -f) unlimited
max locked memory (kbytes, -l) unlimited
max memory size (kbytes, -m) unlimited
open files (-n) 256
pipe size (512 bytes, -p) 1
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 1392
virtual memory (kbytes, -v) unlimited
MID-CLINIC-4-IMAC:azcopy_darwin_amd64_10.25.1 vhcadministrator$ ulimit -n
256
MID-CLINIC-4-IMAC:azcopy_darwin_amd64_10.25.1 vhcadministrator$ ulimit -n 65356
MID-CLINIC-4-IMAC:azcopy_darwin_amd64_10.25.1 vhcadministrator$ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
file size (blocks, -f) unlimited
max locked memory (kbytes, -l) unlimited
max memory size (kbytes, -m) unlimited
open files (-n) 65356
pipe size (512 bytes, -p) 1
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 1392
virtual memory (kbytes, -v) unlimited

XXX:azcopy_darwin_amd64_10.25.1 vhcadministrator$ ./azcopy cp "https://xxxpip01.blob.core.windows.net/xxx/PIDXXX/?xxx" "/Users/vhcadministrator/Desktop/xxx" --overwrite=ifSourceNewer --recursive=true
INFO: Scanning...
INFO: Any empty folders will not be processed, because source and/or destination doesn't have full folder support

Job c363ca9f-3417-164f-6f71-99b7b284486e has started
Log file is located at: /Users/vhcadministrator/.azcopy/c363ca9f-3417-164f-6f71-99b7b284486e.log

5.1 %, 11973 Done, 67109 Failed, 198388 Pending, 2530 Skipped, 280000 Total (scanning...), 2-sec Throughput (Mb/s): 99.564 panic: open /Users/vhcadministrator/.azcopy/plans/c363ca9f-3417-164f-6f71-99b7b284486e--00028.steV18: too many open files

goroutine 1 [running]:
github.com/Azure/azure-storage-azcopy/v10/common.PanicIfErr(...)
/Users/runner/work/1/s/common/lifecyleMgr.go:724
github.com/Azure/azure-storage-azcopy/v10/ste.JobPartPlanFileName.Map({0xc001f27cc0, 0x32})
/Users/runner/work/1/s/ste/JobPartPlanFileName.go:66 +0x1a6
github.com/Azure/azure-storage-azcopy/v10/ste.(*jobMgr).AddJobPart2(0xc000b3c708, 0xc00d92b1d0)
/Users/runner/work/1/s/ste/mgr-JobMgr.go:453 +0x25a
github.com/Azure/azure-storage-azcopy/v10/jobsAdmin.ExecuteNewCopyJobPartOrder({0x0, {0xc363ca9f, 0x3417, 0x164f, {0x6f, 0x71, 0x99, 0xb7, 0xb2, 0x84, ...}}, ...})
/Users/runner/work/1/s/jobsAdmin/init.go:194 +0x2ab
github.com/Azure/azure-storage-azcopy/v10/cmd.inprocSend({0x10a01fa7c, 0x10}, {0x10a2598c0, 0xc00016d888}, {0x10a259980, 0xc016eec018})
/Users/runner/work/1/s/cmd/rpc.go:39 +0xf8
github.com/Azure/azure-storage-azcopy/v10/cmd.init.func4({0x10a01fa7c?, 0xc00076c730?}, {0x10a2598c0?, 0xc00016d888?}, {0x10a259980?, 0xc016eec018?})
/Users/runner/work/1/s/cmd/rpc.go:31 +0x2c
github.com/Azure/azure-storage-azcopy/v10/cmd.addTransfer(, {{0xc00e871cb0, 0x86}, {0xc00e86ca00, 0x91}, 0x0, {0x0, 0xeddbb16a0, 0xc001af63f0}, 0x87c2, ...}, ...)
/Users/runner/work/1/s/cmd/copyEnumeratorHelper.go:24 +0xe3
github.com/Azure/azure-storage-azcopy/v10/cmd.(*CookedCopyCmdArgs).initEnumerator.func5({{0xc00ea21d0f, 0x31}, 0x0, {0x0, 0xeddbb16a0, 0xc001af63f0}, {0x0, 0x0, 0x0}, 0x87c2, ...})
/Users/runner/work/1/s/cmd/copyEnumeratorInit.go:321 +0x585
github.com/Azure/azure-storage-azcopy/v10/cmd.processIfPassedFilters({, _, _}, {{0xc00ea21d0f, 0x31}, 0x0, {0x0, 0xeddbb16a0, 0xc001af63f0}, {0x0, ...}, ...}, ...)
/Users/runner/work/1/s/cmd/zc_enumerator.go:841 +0x97
github.com/Azure/azure-storage-azcopy/v10/cmd.(*blobTraverser).parallelList(0xc00022cbd0, 0xc0000a80a0, {0xc000010c2f, 0x38}, {0xc000010c68, 0xb}, {0x0, 0x0}, 0x0, 0xc000037a40, ...)
/Users/runner/work/1/s/cmd/zc_traverser_blob.go:439 +0x338
github.com/Azure/azure-storage-azcopy/v10/cmd.(*blobTraverser).Traverse(0xc00022cbd0, 0x0, 0xc000037a40, {0x10ac2f140, 0x0, 0x0})
/Users/runner/work/1/s/cmd/zc_traverser_blob.go:309 +0xa45
github.com/Azure/azure-storage-azcopy/v10/cmd.(*CopyEnumerator).enumerate(0xc000149ec0)
/Users/runner/work/1/s/cmd/zc_enumerator.go:789 +0x3a
github.com/Azure/azure-storage-azcopy/v10/cmd.(*CookedCopyCmdArgs).processCopyJobPartOrders(0xc0002ae008)
/Users/runner/work/1/s/cmd/copy.go:1623 +0xf06
github.com/Azure/azure-storage-azcopy/v10/cmd.(*CookedCopyCmdArgs).process(0xc0004a8870?)
/Users/runner/work/1/s/cmd/copy.go:1273 +0x65
github.com/Azure/azure-storage-azcopy/v10/cmd.init.2.func2(0xc0000e9b88?, {0xc000149680?, 0x2?, 0x10a01443a?})
/Users/runner/work/1/s/cmd/copy.go:2028 +0x245
github.com/spf13/cobra.(*Command).execute(0xc0000e9b88, {0xc000149600, 0x4, 0x4})
/Users/runner/go/pkg/mod/github.com/spf13/[email protected]/command.go:860 +0x684
github.com/spf13/cobra.(*Command).ExecuteC(0x10abbf940)
/Users/runner/go/pkg/mod/github.com/spf13/[email protected]/command.go:974 +0x38d
github.com/spf13/cobra.(*Command).Execute(...)
/Users/runner/go/pkg/mod/github.com/spf13/[email protected]/command.go:902
github.com/Azure/azure-storage-azcopy/v10/cmd.Execute({0xc00003a340?, 0x10aba5d30?}, {0xc00003e7b0?, 0xc0001450c8?}, 0xc0001450c0?, {0xc363ca9f, 0x3417, 0x164f, {0x6f, 0x71, ...}})
/Users/runner/work/1/s/cmd/root.go:220 +0xec
main.main()
/Users/runner/work/1/s/main.go:79 +0x47b
@pkcecw
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pkcecw commented Jul 12, 2024

Can someone review the above error help me on this please?

@petereddy
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petereddy commented Dec 12, 2024 •
edited
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azcopy version 10.27.1

I'm completely unable to download a large set of files using azcopy on macos. I've tried setting both AZCOPY_CONCURRENT_FILES and AZCOPY_CONCURRENCY_VALUE to various, low settings but no joy. It either dies with too many open files or download failures:

export AZCOPY_CONCURRENT_FILES=30;

0.0 %, 0 Done, 3470 Failed, 36530 Pending, 0 Skipped, 40000 Total (scanning...),

INFO: Scanning...
INFO: Any empty folders will not be processed, because source and/or destination doesn't have full folder support

Job 06654316-5c89-dd48-4bc7-be87ba75f3d4 has started
Log file is located at: /Users/petere/.azcopy/06654316-5c89-dd48-4bc7-be87ba75f3d4.log

0.0 %, 0 Done, 18570 Failed, 61430 Pending, 0 Skipped, 80000 Total (scanning...), panic: couldn't create job part plan file "06654316-5c89-dd48-4bc7-be87ba75f3d4--00008.steV18": open /Users/petere/.azcopy/plans/06654316-5c89-dd48-4bc7-be87ba75f3d4--00008.steV18: too many open files

goroutine 1 [running]:
github.com/Azure/azure-storage-azcopy/v10/ste.JobPartPlanFileName.Create({_, _}, {0x0, {0x6654316, 0x5c89, 0xdd48, {0x4b, 0xc7, 0xbe, 0x87, ...}}, ...})
	github.com/Azure/azure-storage-azcopy/v10/ste/JobPartPlanFileName.go:147 +0x1e14
github.com/Azure/azure-storage-azcopy/v10/jobsAdmin.ExecuteNewCopyJobPartOrder({0x0, {0x6654316, 0x5c89, 0xdd48, {0x4b, 0xc7, 0xbe, 0x87, 0xba, 0x75, ...}}, ...})
	github.com/Azure/azure-storage-azcopy/v10/jobsAdmin/init.go:165 +0x98
github.com/Azure/azure-storage-azcopy/v10/cmd.inprocSend({0x110c53c7a, 0x10}, {0x110f3a100, 0xc00013b188}, {0x110f3a1c0, 0xc0251fcc30})
	github.com/Azure/azure-storage-azcopy/v10/cmd/rpc.go:39 +0xf8
github.com/Azure/azure-storage-azcopy/v10/cmd.init.func6({0x110c53c7a?, 0xc00058abd8?}, {0x110f3a100?, 0xc00013b188?}, {0x110f3a1c0?, 0xc0251fcc30?})
	github.com/Azure/azure-storage-azcopy/v10/cmd/rpc.go:31 +0x2c
github.com/Azure/azure-storage-azcopy/v10/cmd.addTransfer(_, {{0xc0283af6b0, 0x24}, {0xc028b12f80, 0x34}, 0x0, {0x0, 0xedebf03c5, 0xc000b1f180}, 0x54ce, ...}, ...)
	github.com/Azure/azure-storage-azcopy/v10/cmd/copyEnumeratorHelper.go:24 +0xdd
github.com/Azure/azure-storage-azcopy/v10/cmd.(*CookedCopyCmdArgs).initEnumerator.func5({{0xc028c58b14, 0x1f}, 0x0, {0x0, 0xedebf03c5, 0xc000b1f180}, {0x0, 0x0, 0x0}, 0x54ce, ...})
	github.com/Azure/azure-storage-azcopy/v10/cmd/copyEnumeratorInit.go:306 +0x585
github.com/Azure/azure-storage-azcopy/v10/cmd.processIfPassedFilters({_, _, _}, {{0xc028c58b14, 0x1f}, 0x0, {0x0, 0xedebf03c5, 0xc000b1f180}, {0x0, ...}, ...}, ...)
	github.com/Azure/azure-storage-azcopy/v10/cmd/zc_enumerator.go:841 +0x97
github.com/Azure/azure-storage-azcopy/v10/cmd.(*blobTraverser).parallelList(0xc0004dcb60, 0xc00051c1e0, {0xc00059c629, 0x7}, {0xc00059c631, 0x14}, {0x0, 0x0}, 0x0, 0xc0000c43c0, ...)
	github.com/Azure/azure-storage-azcopy/v10/cmd/zc_traverser_blob.go:478 +0x338
github.com/Azure/azure-storage-azcopy/v10/cmd.(*blobTraverser).Traverse(0xc0004dcb60, 0x0, 0xc0000c43c0, {0x1120a93a0, 0x0, 0x0})
	github.com/Azure/azure-storage-azcopy/v10/cmd/zc_traverser_blob.go:323 +0xa45
github.com/Azure/azure-storage-azcopy/v10/cmd.(*CopyEnumerator).enumerate(0xc000308440)
	github.com/Azure/azure-storage-azcopy/v10/cmd/zc_enumerator.go:789 +0x3a
github.com/Azure/azure-storage-azcopy/v10/cmd.(*CookedCopyCmdArgs).processCopyJobPartOrders(0xc000457c08)
	github.com/Azure/azure-storage-azcopy/v10/cmd/copy.go:1645 +0xf06
github.com/Azure/azure-storage-azcopy/v10/cmd.(*CookedCopyCmdArgs).process(0xc000476bd0?)
	github.com/Azure/azure-storage-azcopy/v10/cmd/copy.go:1274 +0x65
github.com/Azure/azure-storage-azcopy/v10/cmd.init.2.func2(0xc000292308?, {0xc0002a4aa0?, 0x2?, 0x110c45f59?})
	github.com/Azure/azure-storage-azcopy/v10/cmd/copy.go:2050 +0x245
github.com/spf13/cobra.(*Command).execute(0xc000292308, {0xc0002a4960, 0xa, 0xa})
	github.com/spf13/[email protected]/command.go:989 +0xa91
github.com/spf13/cobra.(*Command).ExecuteC(0x111fc1fc0)
	github.com/spf13/[email protected]/command.go:1117 +0x3ff
github.com/spf13/cobra.(*Command).Execute(...)
	github.com/spf13/[email protected]/command.go:1041
github.com/Azure/azure-storage-azcopy/v10/cmd.Execute({0xc000490708?, 0x111f866b0?}, {0xc0004789c0?, 0xc00008e648?}, 0x10fd1a725?, {0x6654316, 0x5c89, 0xdd48, {0x4b, 0xc7, ...}})
	github.com/Azure/azure-storage-azcopy/v10/cmd/root.go:233 +0xec
main.main()
	github.com/Azure/azure-storage-azcopy/v10/main.go:79 +0x47b

When I reset all settings to default, I saw the following in the log file:

2024/12/12 20:56:53 Max open files when downloading: 2147479959 (auto-computed)

Update: Apparently I'm unable to download even one file now.

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@petereddy @pkcecw