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--open_files_during_discovery issues (open blocks/hangs while directory browsing?) #102

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ldemailly opened this issue Nov 25, 2015 · 0 comments
Closed

--open_files_during_discovery issues (open blocks/hangs while directory browsing?) #102

ldemailly opened this issue Nov 25, 2015 · 0 comments

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@ldemailly
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check that it works well - @uddipta reported open hanging / let's get repro steps and a fix

wdt --open_files_during_discovery -destination ::1 -directory /usr -transfer_id=wdt

doesn't seem to hang (but it does expectedly run out of fds)

ps: also: when doing
$ wdt --skip_writes --transfer_id=wdt --run_as_daemon &
$ wdt --open_files_during_discovery -destination ::1 -directory /usr

1124 20:51:05.263090 2099960 ByteSource.h:51] Failed to close file lib64/libdb-4.7.so: Bad file descriptor [9]
E1124 20:51:05.263135 2099960 ByteSource.h:51] Failed to close file lib64/libdb-4.3.so: Bad file descriptor [9]
E1124 20:51:05.263149 2099960 ByteSource.h:51] Failed to close file lib64/libasound.so.2.0.0: Bad file descriptor [9]
E1124 20:51:05.263203 2099960 ByteSource.h:51] Failed to close file lib64/libglib-2.0.so.0.2800.8: Bad file descriptor [9]
E1124 20:51:05.263211 2099960 ByteSource.h:51] Failed to close file lib64/libgio-2.0.so.0.2800.8: Bad file descriptor [9]
ldemailly referenced this issue Dec 4, 2015
@nikunjy @ldemailly
Fixing multiple bugs in open files during discovery
7e09301 
Summary: Couple of minor but important bugs in open files while discovering mode

Reviewed By: ldemailly

Differential Revision: D2711631

fb-gh-sync-id: 5adc0fe92a8d5e1d3f045700d8cc40a0e825aa21
ldemailly added a commit that referenced this issue Dec 7, 2015
@ldemailly
new command line options - read url/secret from stdin, option to fork
248621a 
Summary:
new command line options - read url/secret from stdin, option to fork

you can now do stuff like :

(ssh localhost wdt -fork -start_port 0 -directory /tmp/dst1; ls *.h ) | wdt -manifest - -

which runs the receiver and outputs the url to stdout, then detaches so
the next command can run (output the .h list) and the sender reads both from
stdin !

fixes #102

Reviewed By: nikunjy

Differential Revision: D2726117

fb-gh-sync-id: 2c6c71b5b8cdc7819835eaaaf4a30d6ebf2a3124
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