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panic: runtime error: index out of range [0] with length 0 #2941

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xcdr opened this issue Oct 26, 2019 · 3 comments · Fixed by #2943
Closed

panic: runtime error: index out of range [0] with length 0 #2941

xcdr opened this issue Oct 26, 2019 · 3 comments · Fixed by #2943

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@xcdr
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xcdr commented Oct 26, 2019

Expected behavior

Display user friendly info.

Actual behavior

[10:58:35] xcdr:~ $ mc admin info server minio-3s
panic: runtime error: index out of range [0] with length 0

goroutine 1 [running]:
github.com/minio/mc/cmd.infoMessage.String(0x0, 0x0, 0xd25729, 0x2, 0xc0002f4220, 0x14, 0x0, 0x0, 0xc0002172c0, 0x2, ...)
        /q/.q/sources/gopath/src/github.com/minio/mc/cmd/admin-info-server.go:176 +0x21af
github.com/minio/mc/cmd.printMsg(0xe61560, 0xc0002454a0)
        /q/.q/sources/gopath/src/github.com/minio/mc/cmd/print.go:30 +0xeb
github.com/minio/mc/cmd.mainAdminServerInfo(0xc0002ae680, 0x0, 0x2ae680)
        /q/.q/sources/gopath/src/github.com/minio/mc/cmd/admin-info-server.go:353 +0x80c
github.com/minio/cli.HandleAction(0xc0ad20, 0xd7ab78, 0xc0002ae680, 0xc0000d7b00, 0x0)
        /q/.q/sources/gopath/pkg/mod/github.com/minio/cli@v1.22.0/app.go:498 +0xc8
github.com/minio/cli.Command.Run(0xd29172, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0, 0xd43304, 0x20, 0x0, ...)
        /q/.q/sources/gopath/pkg/mod/github.com/minio/cli@v1.22.0/command.go:225 +0x991
github.com/minio/cli.(*App).RunAsSubcommand(0xc0002ae000, 0xc00025bd40, 0x0, 0x0)
        /q/.q/sources/gopath/pkg/mod/github.com/minio/cli@v1.22.0/app.go:387 +0x7fa
github.com/minio/cli.Command.startApp(0xd26d72, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0xd43304, 0x20, 0x0, ...)
        /q/.q/sources/gopath/pkg/mod/github.com/minio/cli@v1.22.0/command.go:313 +0x809
github.com/minio/cli.Command.Run(0xd26d72, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0xd43304, 0x20, 0x0, ...)
        /q/.q/sources/gopath/pkg/mod/github.com/minio/cli@v1.22.0/command.go:111 +0x127b
github.com/minio/cli.(*App).RunAsSubcommand(0xc00025ba00, 0xc00025a4e0, 0x0, 0x0)
        /q/.q/sources/gopath/pkg/mod/github.com/minio/cli@v1.22.0/app.go:387 +0x7fa
github.com/minio/cli.Command.startApp(0xd2785a, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0xd35d86, 0x14, 0x0, ...)
        /q/.q/sources/gopath/pkg/mod/github.com/minio/cli@v1.22.0/command.go:313 +0x809
github.com/minio/cli.Command.Run(0xd2785a, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0xd35d86, 0x14, 0x0, ...)
        /q/.q/sources/gopath/pkg/mod/github.com/minio/cli@v1.22.0/command.go:111 +0x127b
github.com/minio/cli.(*App).Run(0xc00025a1a0, 0xc0000ba000, 0x5, 0x5, 0x0, 0x0)
        /q/.q/sources/gopath/pkg/mod/github.com/minio/cli@v1.22.0/app.go:261 +0x6ab
github.com/minio/mc/cmd.Main(0xc0000ba000, 0x5, 0x5)
        /q/.q/sources/gopath/src/github.com/minio/mc/cmd/main.go:110 +0x29c
main.main()
        /q/.q/sources/gopath/src/github.com/minio/mc/main.go:34 +0x45

Steps to reproduce the behavior

  • create 3 minio instances [minio-1,minio-2,minio-3]
  • setup minio client for minio-1 instance and name it minio-3s (for this example)
  • run mc admin info server minio-3s
  • stop minio-2 and minio-3 instances
  • run again mc admin info server minio-3s

mc version

Version: 2019-10-09T22:54:57Z
Release-tag: RELEASE.2019-10-09T22-54-57Z
Commit-id: f93fe1330a3647b1afaff0ed8c188d2897bf391e

System information

Minio instances:

root@minio-1:~ # freebsd-version
12.0-RELEASE-p11

root@minio-1:~ # minio version
Version: 2019-08-29T00:25:01Z
Release-Tag: RELEASE.2019-08-29T00-25-01Z
Commit-ID: eb18c82976251d9a0c0730df27e10204c89beae2

Both minio clients on FreeBSD and Ubuntu (WSL) have the same issue.

@harshavardhana
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Your server is too old , please upgrade your server

@xcdr
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xcdr commented Oct 26, 2019

This error looks as client bug, not server.

Nothing change after upgrade server, current version is:

Version: 2019-10-12T01:39:57Z
Release-Tag: RELEASE.2019-10-12T01-39-57Z
Commit-ID: bd106408462ecef70debf51f1e6179de950c5812

@kannappanr
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@xcdr Was able to reproduce the issue. Thanks for reporting it. Will fix it soon.

kannappanr added a commit to kannappanr/mc that referenced this issue Oct 28, 2019
nitisht pushed a commit that referenced this issue Oct 28, 2019
cesnietor added a commit to cesnietor/mc that referenced this issue Apr 2, 2020
* Fix zh_CN doc about policy errors (minio#2927)

* Fix Windows config path (minio#2898)

Remove '.exe' (case insensitive) from executable name for consistent config folder.

Potentially breaking: If people (for whatever reason) used 'mc.exe', this will potentially break their setup.

* Fix removing empty prefixes  with `mc rm ` command (minio#2912)

Fixes: 2909

* Add --type flag to `mc admin console` (minio#2914)

This allows filtering error logs by type

* Update mc to use secure-io package (minio#2931)

* Refactor mc cp and make session optional. (minio#2910)

Now `mc cp --recursive --continue` creates copy session on failure or
resumes if previous failed session is found.

Fixes minio#2893

* continue flag: Fix inconsistent punctuation in usage text (minio#2933)

* fix mc cp termination on signals (minio#2934)

* Adapt new changes in StorageInfo (minio#2889)

* Fix arrow signs to use more common U+2191 & U+2193 (minio#2942)

* Avoid index out of range errors (minio#2943)

Fixes minio#2941

* Fix typo in error message (minio#2945)

Change the error message from `Cannot remove new user` to 
`Cannot remove <User>`, when a non-existent user is removed.

* Add options to preserve filesystem attributes (minio#2938)

* mc admin config set/get/del/history/help (minio#2835)

Related to minio/minio#8392

* print disk usage as a plain integer when formatting as json (minio#2946)

* Fix the storage prints for xl/fs disks in `admin info server` (minio#2947)

* Fix config history to list in git style format (minio#2951)

```
~ mc admin config history list -n 2 myminio
RestoreId: df0ebb1e-69b0-4043-b9dd-ab54508f2897
Date: Mon, 04 Nov 2019 17:27:27 GMT

region name="us-east-1" state="on"
region name="us-east-1" state="on"
region name="us-east-1" state="on"
region name="us-east-1" state="on"

RestoreId: ecc6873a-0ed3-41f9-b03e-a2a1bab48b5f
Date: Mon, 04 Nov 2019 17:28:23 GMT

region name=us-east-1 state=off
```

* add lock command (minio#2880)

`lock` command enables to set, get and clear object lock configuration
of given bucket.

* update to latest minio (minio#2956)

* Fix encrypt-key flag parsing (minio#2955)

* update to latest minio (minio#2957)

* Rectify usage section of policy help (minio#2959)

* help command is now part of `mc admin config get/set` (minio#2961)

* mirror object lock configuration to dest bucket (minio#2964)

if bucket does not exist on the target side.

* Add default values in 'get' (minio#2962)

* Add mirror command to compare metadata and copy (minio#2965)

mirror now uses the newly introduced
ListObjectsV2WithMetadata API in minio-go

* Handle PutObjectRetention notification events correctly (minio#2966)

* Retention command to apply retention to objects with a Prefix (minio#2963)

* Fix totalSize and totalCounts calculation (minio#2969)

* Add import/export command (minio#2974)

* Add support for auto-complete in 'mc admin config' commands (minio#2975)

* Remove duplicated API method(s) for object retention (minio#2973)

* Fix progress bar update regression (minio#2976)

Regression introduced in cf6defe

* Update export command to print disabled sub-sys as comments (minio#2978)

* Add finalized command line options (minio#2979)

* Avoid re-parsing config history elements (minio#2981)

* change target to name in config help (minio#2983)

* fix: Source content can be nil when updating progress bar (minio#2984)

* Continue mirroring inspite of error events (minio#2986)

* watch: Add site wide level support (minio#2987)

* Continue listing upon error during diff and mirror (minio#2988)

* Support for multi master sites (minio#2991)

* Retry mirror forever on watch (minio#2992)

* Fix multi-master setup help text (minio#2993)

* Do full scan diff+mirror in multi-site mirror mode (minio#2994)

* update minio-go to master (minio#2995)

* Avoid mirror fatalIf in multi-master (minio#2998)

* Mirror with fallback list in multimaster mode, copy missing files (minio#2999)

* Fix mirroring of PutObjectRetention event (minio#3004)

* Multi-master only run single startMirror at a time (minio#3003)

Also randomize the sleep appropriately based
on Unix() time source.

* mc sql: Use compression parameter (minio#2996)

The compression parameter is not actually used, but always guessed from the file extension.

Only guess the compression type if it is not explicitly set.

Uploading a file called `out.csv.geezipd`:

Before:
```
λ mc sql -e="SELECT * from s3object LIMIT 1" --compression=GZIP --csv-input "rd=\n,fh=USE,fd=;" local/test/out.csv.geezipd
�""���k↔��Xs��W.v�      ��)��{2#��,r���:�|D▲�.��f♫��→�i�p�2l�♫��ʭ���Q��v▲�5ر�c
```
(content actually not ungzipped)

After:
```
λ mc sql -e="SELECT * from s3object LIMIT 1" --compression=GZIP --csv-input "rd=\n,fh=USE,fd=;" local/test/out.csv.geezipd
"281,1285,159625,159627,2637,20000827.0117590018,1239029,1663,-6.7535419,1533,0.53597438,8"
```

We leave validation of the compression value to the server.

* Replace Timestamp separator   (minio#3002)

Replace time stamp separator to use `-`

* New admin info (minio#2982)

* Stops showing usage info if Bucket#=0 (minio#3007)

* Extraneous line in 'mc admin info' output (minio#3010)

* cp: Only use session when -c is passed (minio#2989)

* Upgrade to new Listen bucket API (minio#3008)

* fix: ignore APINotImplemented errors from filesystem (minio#3018)

* Update to latest minio/minio (minio#3020)

* Mirror: Generate STag and ETag on destination only in Multimaster mode (minio#3021)

* Update mc dependencies to recent dep change on MinIO (minio#3026)

* Use colorjson to indent json properly in cp (minio#3030)

Additionally also do not initialize progress bar in json
or quiet mode in mirror.

Fixes minio#3029
Fixes minio#3017

* fix default flag behaviour in du command (minio#3031)

- `mc du` without args should print help like other `mc` commands
- `mc du` should behave like `du -h --max-depth=1` as default
- optional `--recursive` if they want capacity for each folder.
fixes minio#2871

* Add lock and retention docs (minio#3034)

* Only rename config directories (minio#3032)

If the user placed an `mc.exe` in the user directory and wasn't used it, it would be renamed.

* fix: crash in cp when cpURLs return error (minio#3035)

* fix: du to ignore too many recursive symlinks (minio#3033)

* fix: update docs for --attr command (minio#3040)

Also canonicalize metadata headers automatically
before, minio-go consumes it.

* retention: Error out early when url argument does not point to S3 server (minio#3041)

* fix: update minio-go to support snowball data-transfer (minio#3042)

* cp: add missing } in help template (minio#3047)

* Update pkg/madmin to support multiple profilers (minio#3048)

* admin/console: Fix a crash in console string generation (minio#3049)

* fix: best effort save permissions always (minio#3050)

* upgrade to latest server to remove replace tags (minio#3051)

* fix: update admin docs for latest changes (minio#3054)

* fix: handle symlinks by reading/following as needed (minio#3053)

Avoid using filepath.EvalSymlinks and let the caller
fail appropriately for symlinks.

Fixes minio#3011

* check for bucket exists in 'admin heal' (minio#3059)

* Ensure 64bit alignment on 32bit builds for atomics (minio#3065)

Keep elements that are used with atomic.* functions as first element
of struct because it guarantees 64bit alignment on 32 bit machines.
atomic.* functions crash if operand is not aligned at 64bit.
See golang/go#599

* add the `mc admin kms` subcommands (minio#2882)

This commit adds the first set of KMS admin
commands.

For new there is only the
`mc admin kms key status <endpoint> [key-ID]` command
that can be used to fetch status information for a
KMS master key. Listing and rotation commands are
planed.

* Fix go.sum file missing entries (minio#3071)

* add debug support for 'config host add' (minio#3076)

* Fix crash in mc admin console (minio#3079)

Fixes : minio#3078

* use latest minio-go version (minio#3080)

* allow mirror to copy zero byte file (minio#3084)

this PR also cleans up code and avoids
extra calls for source target

* go mod tidy (minio#3081)

* honor prefix for object and directory names in 'rm -r' (minio#3012)

* fix go mod tidy again

* added pkg/disk/stat_freebsd.go (minio#3090)

* fix handling of directories in Stat (minio#3092)

Fixes minio#3089
Fixes minio#3091

* retention - cleanup unused code (minio#3094)

* Use listObjectsV1 for GCS S3 implementation (minio#3101)

Fixes minio#3073

* Support arm32, 386 compilation: (minio#3103)

* deprecate 'mc session' documentation (minio#3104)

* Add support of threads & goroutines profiling type (minio#3108)

* fix go mod tidy

* Update minio-go to bring some fixes (minio#3106)

* resolve build issues on illumos (minio#3098)

* Update docs for mc admin update (minio#3110)

* fix: Make sure Ctrl-C cancels `mc cp` right away (minio#3113)

* mc cp -continue: Fix escape/colorization of JSON (minio#3116)

* info: Fix showing offline nodes in the pretty output (minio#3112)

Also do some simplification in the code.

* Secret key prompt (minio#3083)

* heal: Show scheduled next healing (minio#3111)

mc admin heal alias command will show the next healing time.

Also, show 'Never completed' when the server returns zero last healing activity

* mc cp: Fix prefix handling in TypeC (minio#3115)

for copy from filesystem to objectstorage.

Avoid prefixing dirname to file on target side
when doing a `mc cp /tmp/dir myminio/bucket --r`
to make `mc mirror` and `mc cp` behavior consistent

* info: Add missing new lines in the output (minio#3119)

* fix for incorrect mtime handling (minio#3121)

* mc retention: add --recursive and --bypass flags. (minio#3100)

--bypass flag allows overriding governance if user
has override permissions

* cleanup legacy metadata handling (minio#3118)

* Add global context and adapt context change in admin API (minio#3125)

This commit adds a new global context, monitors os signals
and cancels the global context in such cases to exit
on going process gracefully.

It will also update minio-go and adapts the code with
the new context changes in the admin API.

* Add tag command (minio#3117)

* cleanup tag command (minio#3126)

* Add legalhold command (minio#3095)

* mc watch windows URL/absolute path event path (minio#3133)

* Onboard Diagnostics (minio#3114)

Also colorize JSON output in all admin commands

* Make BuildS3Config public (minio#3132)

* add build trimpaths to remove gopath (minio#3137)

* add --disable-multipart flag in cp (minio#3135)

* set S3Client struct as public

* set s3client struct as public to be used by mcs

Co-authored-by: yiranzai <wuqingdzx@gmail.com>
Co-authored-by: Klaus Post <klauspost@gmail.com>
Co-authored-by: poornas <poornas@users.noreply.github.com>
Co-authored-by: Harshavardhana <harsha@minio.io>
Co-authored-by: Bala FA <bala.gluster@gmail.com>
Co-authored-by: Ashish Kumar Sinha <ashi.sinha.87@gmail.com>
Co-authored-by: Praveen raj Mani <praveen@minio.io>
Co-authored-by: Nitish Tiwari <nitish@minio.io>
Co-authored-by: kannappanr <30541348+kannappanr@users.noreply.github.com>
Co-authored-by: Wesley Collin Wright <deinlebenandern@gmail.com>
Co-authored-by: Krishna Srinivas <634494+krishnasrinivas@users.noreply.github.com>
Co-authored-by: Anis Elleuch <vadmeste@users.noreply.github.com>
Co-authored-by: BigUstad <priyank.raj@gatech.edu>
Co-authored-by: ebozduman <ersan.bozduman@gmail.com>
Co-authored-by: Maël Valais <mael.valais@gmail.com>
Co-authored-by: Reinhard Koehn <rkoehn@users.noreply.github.com>
Co-authored-by: Andreas Auernhammer <aead@mail.de>
Co-authored-by: Dmitry Wagin <dmitry.wagin@ya.ru>
Co-authored-by: Kody A Kantor <kody.kantor@gmail.com>
Co-authored-by: Jeffrey Clark <h0tw1r3@users.noreply.github.com>
Co-authored-by: Sidhartha Mani <wlan0@users.noreply.github.com>
Co-authored-by: Daniel Valdivia <hola@danielvaldivia.com>
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4 participants