[Gluster-users] Regarding 2.0.4 booster

Shehjar Tikoo shehjart at gluster.com
Tue Jul 21 04:49:39 UTC 2009


Sudipto Mukhopadhyay wrote:
> Hi,
> 
>  
> 
> After modifying the booster.conf, I started getting the logs under 
> /tmp/booster.log but, I see the following error:
> 
>  
> 
>  
> 
> [2009-07-20 12:24:58] D [booster.c:1025:booster_init] booster: booster 
> is inited
> 
> [2009-07-20 12:24:58] D 
> [libglusterfsclient.c:1340:libgf_vmp_search_entry] libglusterfsclient: 
> VMP Entry found: /mnt/glusterfs/abc.txt: /mnt/glusterfs/
> 
> [2009-07-20 12:24:58] N [client-protocol.c:5559:client_setvolume_cbk] 
> remote1: Connected to 10.16.80.53:6996, attached to remote volume 'afr'.
> 
> [2009-07-20 12:24:58] N [client-protocol.c:5559:client_setvolume_cbk] 
> remote1: Connected to 10.16.80.53:6996, attached to remote volume 'afr'.
> 
> [2009-07-20 12:24:58] N [client-protocol.c:5559:client_setvolume_cbk] 
> remote2: Connected to 10.16.80.55:6996, attached to remote volume 'afr'.
> 
> [2009-07-20 12:24:58] D 
> [libglusterfsclient-dentry.c:224:__do_path_resolve] 
> libglusterfsclient-dentry: loc->parent(1) already present. sending 
> lookup for 1//abc.txt
> 
> [2009-07-20 12:24:58] D 
> [libglusterfsclient-dentry.c:245:__do_path_resolve] 
> libglusterfsclient-dentry: resolved path(/abc.txt) till 1(/). sending 
> lookup for remaining path
> 
> [2009-07-20 12:24:58] D 
> [libglusterfsclient.c:1608:libgf_client_lookup_cbk] libglusterfsclient: 
> 1: (op_num=0) /abc.txt => -1 (No such file or directory)
> 
> [2009-07-20 12:24:58] E [libglusterfsclient.c:2447:glusterfs_glh_open] 
> libglusterfsclient: path lookup failed for (/abc.txt)
> 
>  
> 
>  
> 
> Can you please explain the above errors and what is that causing these 
> errors?

The other messages are debug and informational messages. If you'd
like to reduce the verbosity of the log, please set the loglevel
parameter in the booster.conf to ERROR.

Regards
-Shehjar


> 
>  
> 
> Thanks and regards,
> 
> Sudipto
> 
>  
> 
>  
> 
>  
> 
> -----Original Message-----
> From: Sudipto Mukhopadhyay
> Sent: Monday, July 20, 2009 3:59 PM
> To: Shehjar Tikoo
> Cc: service at gluster.com; avati at gluster.com; gluster-users at gluster.org
> Subject: RE: [Gluster-users] Regarding 2.0.4 booster
> 
>  
> 
> Hi Shehjar,
> 
>  
> 
> The contents in booster.conf are in two separate lines.
> 
> I will try out the test again by merging the contents of booster.conf 
> into one single line after I get my nodes back.
> 
>  
> 
> Thanks and regards,
> 
> Sudipto
> 
>  
> 
> -----Original Message-----
> 
> From: Shehjar Tikoo [mailto:shehjart at gluster.com]
> 
> Sent: Thursday, July 16, 2009 10:08 PM
> 
> To: Sudipto Mukhopadhyay
> 
> Cc: service at gluster.com; avati at gluster.com; gluster-users at gluster.org
> 
> Subject: Re: [Gluster-users] Regarding 2.0.4 booster
> 
>  
> 
> Sudipto Mukhopadhyay wrote:
> 
>>  My mistake I meant booster log is not getting generated.
> 
>>
> 
>>  Thanks and regards,
> 
>>  Sudipto
> 
>  
> 
>  
> 
> Hi
> 
>  
> 
> A few questions. Please see inlined text.
> 
>  
> 
>>
> 
>>  -----Original Message-----
> 
>>  From: gluster-users-bounces at gluster.org
> 
>>  [mailto:gluster-users-bounces at gluster.org] On Behalf Of Sudipto
> 
>>  Mukhopadhyay
> 
>>  Sent: Tuesday, July 14, 2009 2:07 PM
> 
>>  To: Shehjar Tikoo
> 
>>  Cc: avati at gluster.com; gluster-users at gluster.org
> 
>>  Subject: Re: [Gluster-users] Regarding 2.0.4 booster
> 
>>
> 
>>  Hi Shehjar,
> 
>>
> 
>>  Thanks for looking into this issue.
> 
>>  The file abc.txt is getting created; if you look at the C program; the
> 
>>  following line is basically printing out the file handle on stdout:
> 
>>
> 
>>  printf ("File handle %d\n",fh);
> 
>>
> 
>>  But, the booster log is getting generated.
> 
>>
> 
>>  Thanks and regards,
> 
>>  Sudipto
> 
>>
> 
>>  -----Original Message-----
> 
>>  From: Shehjar Tikoo [mailto:shehjart at gluster.com]
> 
>>  Sent: Tuesday, July 14, 2009 2:34 AM
> 
>>  To: Sudipto Mukhopadhyay
> 
>>  Cc: gluster-users at gluster.org; avati at gluster.com
> 
>>  Subject: Re: [Gluster-users] Regarding 2.0.4 booster
> 
>>
> 
>>  Sudipto Mukhopadhyay wrote:
> 
>> > Hi,
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > I trying to run some tests w/booster client library and I had to
> 
>> > upgrade the glusterfs to version 2.0.4 from 2.0.2 (due to LD_PRELOAD
> 
>> > failures of the booster client library,
> 
>> > 
> 
>>  http://git.savannah.gnu.org/cgit/gluster.git/commit/?id=a3ece0caa52ad2ea
> 
>>  cf8a8691aaca53295cde972f).
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > Now, w/version 2.0.4 the LD_PRELOAD works OK, but the booster logs
> 
>> > are not generating and I am not sure whether booster is working or,
> 
>> > not.
> 
>> > 
> 
>> > I have the following booster.conf and client vol specification:
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > $cat /etc/glusterfs/booster.conf
> 
>> > 
> 
>> > /etc/glusterfs/glusterfs-client.vol /mnt/glusterfs glusterfs
> 
>> > 
> 
>> > subvolume=brick,logfile=/tmp/booster.log,loglevel=DEBUG
> 
>> > 
> 
>  
> 
> Please confirm whether the above content in booster.conf is on
> 
> a single line or two separate lines. It should all be on one line for
> 
> the logfile setting to be associated with /mnt/glusterfs.
> 
>  
> 
>> > 
> 
>> > 
> 
>> > $cat /etc/glusterfs/glusterfs-client.vol
> 
>> > 
> 
>> > volume brick
> 
>> > 
> 
>> > type protocol/client
> 
>> > 
> 
>> > option transport-type tcp/client # for TCP/IP transport
> 
>> > 
> 
>> > option remote-host 10.16.80.53   # IP address of the server
> 
>> > 
> 
>> > option remote-subvolume afr      # name of the remote volume
> 
>> > 
> 
>> > end-volume
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > volume writebehind
> 
>> > 
> 
>> > type performance/write-behind
> 
>> > 
> 
>> > option window-size 1MB
> 
>> > 
> 
>> > subvolumes brick
> 
>> > 
> 
>> > end-volume
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > I have written a simple program to test few system calls and the
> 
>> > booster functionality:
> 
>> > 
> 
>> > int main() {
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > int fh;
> 
>> > 
> 
>> > char buffer[65];
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > fh = open("/mnt/glusterfs/abc.txt",O_WRONLY);
> 
>> > 
> 
>> > if (fh == -1) {
> 
>> > 
> 
>> > fh = creat("/mnt/glusterfs/abc.txt",O_WRONLY);
> 
>> > 
> 
>> > }
> 
>> > 
> 
>> > printf ("File handle %d\n",fh);
> 
>> > 
> 
>> > close(fh);
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > return 0;
> 
>> > 
> 
>> > }
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > When I run my program with LD_PRELOAD option, I get the following
> 
>> > message:
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > LD_PRELOAD="/usr/local/lib/glusterfs/glusterfs-booster.so"
> 
>> > /root/fstest/a.out
> 
>> > 
> 
>> > [2009-07-13 16:19:02] E
> 
>> > [libglusterfsclient.c:2447:glusterfs_glh_open] libglusterfsclient:
> 
>> > path lookup failed for (/abc.txt)
> 
>> > 
> 
>  
> 
> Is the above log message the only message that is being output? Were
> 
> there more lines that resembled this log line that you probably
> 
> removed for the purpose of this email?
> 
>  
> 
> Thanks
> 
> Shehjar
> 
>  
> 
>  
> 
>> > File handle 4
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > And there is no /tmp/booster.log created. The above log is only
> 
>> > observed while creating the file (in case abc.txt is not present).
> 
>> > 
> 
>> > Could you please advice on the booster config file and let me know
> 
>> > why I am not seeing any booster log?
> 
>> > 
> 
>> > 
> 
>>  I'll check why the booster log is not getting generated.
> 
>>  In the mean time, can you check if the file abc.txt really does not
> 
>>  get created on the backend?
> 
>>  If open is failing, it looks like the fd 4 is being returned by
> 
>>  creat call.
> 
>>
> 
>>  -Shehjar
> 
>>
> 
>>
> 
>> > Appreciate your help.
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > Thanks and regards,
> 
>> > 
> 
>> > Sudipto
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > 
> 
>> > 
> 
>>  ------------------------------------------------------------------------
> 
>> > 
> 
>> > 
> 
>> > _______________________________________________ Gluster-users mailing
> 
>> >  list Gluster-users at gluster.org
> 
>> > http://zresearch.com/cgi-bin/mailman/listinfo/gluster-users
> 
>>
> 
>>
> 
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> 
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> 
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> 
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> 
>>
> 
>  
> 





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