Log of /trunk/proof/proofx/src/TXSlave.cxx
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Revision
44683 -
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Modified
Thu Jun 14 09:27:40 2012 UTC (2 years, 7 months ago) by
ganis
File length: 23657 byte(s)
Diff to
previous 41313
First version of the final patch enabling multi-workers on single node using
PROOF-Lite. This is supposed to improved scalability for large number of workers
(>300-400) and is currently available only for non-data driven tasks.
The new setup configuration is enabled by the directive 'xpd.remoteplite 1' in
the xproofd configuration file.
Revision
39115 -
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Modified
Thu May 5 15:54:41 2011 UTC (3 years, 8 months ago) by
ganis
File length: 23459 byte(s)
Diff to
previous 38580
- Fix bug in TXSocket::Create whose effect was to make the three additional attempts
following the first to send a wrong and meaningless creation info (ordinal number, etc).
The bug was introduced while fixing the log path trasmission problem.
- Improve the way information about the logs files is saved when failure happens
during creation. The log paths for these failing now should be now correctly saved
and accessible via TProofLog.
- Improve TSlave::Print when the connection is invalid (print all the valid information,
available, not only the header one)
Revision
38580 -
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Modified
Wed Mar 23 15:24:54 2011 UTC (3 years, 10 months ago) by
ganis
File length: 24001 byte(s)
Diff to
previous 38538
Patch fixing a problem with log path transmission when the node dies early or not even starts.
The log path was empty and wrong was filled in when retrieving the log buffers, disorienting
debugging. This was experienced frequently by ALICE.
The log file is now trasmitted as part of the responde to the session 'Create' request, so it
is always registered by the master in the relevant field in TSlave. Also, the last errors, if
any, typically logged in the xproofd log file, are now copied to the relevant worker or master
log file so that they are also accessible to client.
The patch also factorizes some calls in XrdProofdProofServMgr in preparation to the improved
session lauch strategy.
Revision
38538 -
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Modified
Mon Mar 21 14:13:29 2011 UTC (3 years, 10 months ago) by
ganis
File length: 22161 byte(s)
Diff to
previous 34718
In TXSocket and TXSlave:
- Fix problem with the way collection over a socket just marked as 'bad' was interrupted;
the interrupt was de facto ineffective, so that collection stayed always until the
timeout expired (default: 5 minutes). Should solve some of the cases were slow response
was experienced.
Revision
28746 -
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Modified
Thu May 28 13:03:29 2009 UTC (5 years, 7 months ago) by
ganis
File length: 21693 byte(s)
Diff to
previous 27034
Cleanup of the TProofMgr fucntions DetachSession and ShutdownSession, and better
handling of the internal list registration, to fix potential segvs when reopening
a PROOF session inside the same ROOT session.
Now, for both normal PROOF and PROOF-Lite, it should be possible to close a
session handled by the TProof object 'p' with any of the following:
root[] delete p
or
root[] TProof::Mgr("<server>")->ShutdownSession(p)
or
root[] TProof::Mgr("<server>")->ShutdownSession(id_p)
(where id_p is the local session id given by TProof::Mgr("<server>")->QuerySessions())
and re-open a session on the same server right after.
Other fixes / changes:
- New auxilliary methods:
- TProofMgr::DiscardSession(TProof *) to remove a session from the internal
list of a manager;
- TProofDesc *TProofMgr::GetProofDesc(TProof *) to quickly get the TProofDesc
container associated with a session by object
- Make sure that the default port is always 1093 (in a couple of places it was 1094!)
- Improve some comments
Revision
27034 -
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Modified
Fri Dec 19 15:30:06 2008 UTC (6 years, 1 month ago) by
ganis
File length: 21819 byte(s)
Diff to
previous 26738
From Jan: prepare for query-enqueing support:
- add new protocol message to resume an enqueued session
- add framework to process enqueued queries after a resume: the processing part on masters
has been moved to a new method ProcessNext which is called also after a resume request.
- remove duplication in the definition of message types for SendCoordinator
(same codes defined in XProofProtocol.h and TXSocket.h)
Revision
26678 -
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Modified
Fri Dec 5 14:53:23 2008 UTC (6 years, 1 month ago) by
ganis
File length: 21692 byte(s)
Diff to
previous 26512
Patch to:
- Add the possibility to set upper limits on the virtual memory (changes in TProofPlayer,
TProofServ, TXProofServ and pmain (separate patch)).
If enebled, the session gets firts a warning when it reaches 80% of the limit, and then
processing is stopped whenit exceeds 95% of the limit, sending back the results.
Also, the memory footprint is notified when the session is terminated.
- Make sure the the active valuse in XrdProofWorker are always correct; this was not the
case for dynamic startup as the notification at the end of the query was not done.
This information is crucial or the scheduler.
The way the information is stored in XrdProofdProofServ had to be modified
and a new internal message type (kReleaseWorker) added.
(Changes in several proofd classes, TProof, TXsocket and TXProofServ)
- Fix problem with setting a static upper limit of the sessions that can be started,
and enable this functionality for the dynamic mode (changes in XrdProofSched)
- Remove a deleted worker from all the lists in TProof::MarkBad to avoid later attempts of use.
- Better control the use of the internal pipe for socket readiness notification in TXSocket.
Revision
24764 -
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Modified
Thu Jul 10 11:33:39 2008 UTC (6 years, 6 months ago) by
ganis
File length: 21564 byte(s)
Diff to
previous 24734
Make sure that messages are always processed. In the case a de-activated worker was
removed during collection, associated messages were not processed, screwing up the
overall synchronization
Revision
24719 -
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Modified
Wed Jul 9 07:07:25 2008 UTC (6 years, 6 months ago) by
ganis
File length: 21289 byte(s)
Diff to
previous 24568
Patch refactorizing the XrdProofd plugin.
The class XrdProofdProtocol is now in charge only of the operations strctly related
to the XProofd protocol. All auxilliary services have been moved to dedicated service
classes controlled by XrdProofdManager. In particular:
- XrdProofdClientMgr handles the clients (represented by instances of XrdProofdClient)
including login, authentication and access control
- XrdProofdProofServMgr handles the PROOF sessions (represented by instances of
XrdProofdProofServ) including creation, attachment, detachment, destruction and
environment setting
- XrdProofdNetMgr handles connections between instances of XProofd running on different
nodes
- XrdProofdPriorityMgr handles the session priorities
A special effort has been done to get rid of all possible internal dead-lock situations.
Internal actions on clients and sessions are now all asynchronous, governed by internal
pipes.
The new plugin also offers new functionality, among which:
- a XProofd admin area, located under <xrd.admin>/.xproof.<port>, keeps information about
active and terminated sessions, and the minimal state for active clients. This is used
to reguraly check the client and session activity, to cleanup orphalin sessions and
to shutdown inactive client connections.
In particular this allows a more solid implementation of Reset, which now exists in two
flavours: 'soft', TProof::Reset(<masterurl>), (default) asks the sessions to terminate gently;
'hard', TProof::Reset(<masterurl>,kTRUE) schedules all sessions for forced termination.
- support for automatic attempts for reconnection in the case the daemon restarts.
This allows to reconfigure the plugin by xrootd restart w/o affecting the running
sessions.
- support the definition of workers via config file directive, getting de facto rid of
the proof.conf file.
- domain+level control of printout message; the format has been improved: in particular
all information messages contain now the tag 'xpd-I' and all error messages the tag
'xpd-E', so that they can easily be grepped out from the log file.
The Wiki 'XrdProofdDirectives Directives' page has been updated with the new directives.
Revision
24568 -
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Modified
Thu Jun 26 11:57:42 2008 UTC (6 years, 6 months ago) by
ganis
File length: 20208 byte(s)
Diff to
previous 24540
- Fix a race condition possibly affecting the handling of workers death
- Improve diagnostic from MarkBad: clients will now receive something like this
root [1] Worker 'localhost-0.1' has been removed from the active list
+++ Message from top master at aleph025.cern.ch:1093 : marking localhost:1093 (0.1) as bad
+++ Reason: problems receiving a message in TProof::CollectInputFrom(...)
+++ Most likely your code crashed on worker 0.1 at localhost:1093.
+++ Please check the session logs for error messages either using
+++ the 'Show logs' button or executing
+++
+++ root [] TProof::Mgr("aleph025.cern.ch:1093")->GetSessionLogs()->Display("0.1",0)
Revision
20682 -
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Modified
Tue Nov 6 15:51:59 2007 UTC (7 years, 2 months ago) by
ganis
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 21011 byte(s)
Diff to
previous 19826
Import branches/dev/proof r20654
Summary:
+ Improvements
- Add support for SSH SOCKS4 tunnelling; the local port for the tunnel can be specified
in the master URL, e.g. TProof::Open("master/?tunnel:8000")
- Add the possibility to plot the estimated instantaneous rate
- Add "PROOF_ForceLocal" parameter to the !TPacketizerAdaptive; if set to 1, all the data
are processed locally.
- Add support for remote grep functionality while retrieving logs (needed by the forthcoming
memory monitor)
+ Bug fixes
- Several small fixes to revive the multi-master mode.
- XrdProofdProtocol:
- add missing lock to the client instance in SendMsg to avoid screwing up requests from
workers on the same machine
- lock the mutex of the requester when setting prorities
- add notification during Reset
- fix problem with the detection of the 'allow' directive
- fix problem with the parsing of the return value from XrdProofServProxy::TerminateProofServ()
- always use the effective user to retrieve info fom another server
(XrdProofdManager::GetProofConn is now used)
- fix possible dead-locks from debug notifications done after hard-killing a session
- re-enable the garbage collector thread of the connection manager in XrdProofConn to
fix a problem with closing physical connections;
- fix a problem with !CleanupProofServ in the case of a non-privileged daemon running
in multi-user mode
- introduce a timeout when waiting for the startup of a 'proofserv'.
- XrdProofConn: init mutex in the ctor; lock in SendRecv
- XrdProofSched: add support for using the priorities defined in the group manager to define
the number of workers for sessions
- TProof:
- Broadcast priorities to unique nodes only
- timeout after 5 mins the initial Collect to avoid clients getting stuck at this stage
- add support for generic timeout in Collect (disabled by default)
- fix a problem with SendFile.
- TXProofServ: add a call to !TProof::InterruptCurrentMonitor() in Terminate() to stop
infinite loops in Collect
- TXSocket:
- Implement a flag to interrupt a TXSocket while waiting for messages
- Split the session creation timeout in 4 attempts: the total timeout is the same but
it may circumvent occasional forking problems.
- XROOTD:
- fix a potential (possibly accademic) memory leak in the client
- fix a access permission problem with Kerberos ticket forwarding
- fix bug preventing 'locate' to work properly
- re-enable optimized 'locate'
Revision
18353 -
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Modified
Mon Mar 19 15:14:10 2007 UTC (7 years, 10 months ago) by
rdm
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 20636 byte(s)
Diff to
previous 17562
From Gerri:
- Support for multiple ROOT versions on a PROOF cluster.
TProofMgr::ShowROOTVersions() giving the following output:
root [0] TProof::Mgr("")->ShowROOTVersions()
----------------------------------------------------------
Available versions (tag ROOT-vers remote-path PROOF-version):
* cvs 5.15/03 /home/ganis/local/root/head/head 12
dev 5.15/03 /home/ganis/local/root/head/root 12
----------------------------------------------------------
- TProofMgr::SetROOTVersion(const char *version_tag)
to change the default for the user, eg
root [1] TProof::Mgr("")->SetROOTVersion("dev")
root [2] TProof::Mgr("")->ShowROOTVersions()
----------------------------------------------------------
Available versions (tag ROOT-vers remote-path PROOF-version):
cvs 5.15/03 /home/ganis/local/root/head/head 12
* dev 5.15/03 /home/ganis/local/root/head/root 12
----------------------------------------------------------
Available version are defined by the administrator via the
"xpd.rootsys" directive:
xpd.rootsys /home/ganis/local/root/head/head cvs
xpd.rootsys /home/ganis/local/root/head/root dev
in the xrootd config file.
- Improve error reporting in TXSocket
- Fix a problem with resetting a label in TProofProgressDialog
Revision
17562 -
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Modified
Mon Jan 29 15:11:11 2007 UTC (7 years, 11 months ago) by
rdm
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 20417 byte(s)
Diff to
previous 17412
Frrom Gerri:
There is a new classes TProofServLogHandler allowing to redirect
the output to the client in real-time. It has two main constructors,
one taking an external command (like BUILD.sh) and opening a pipe,
the other taking a pointer to a open file. TProofServ uses the class
via the guard class TProofServLogHandlerGuard to better localize the
usage. This redirection is not always activated. For the time being it
is active for Process and Cache actions,and it can be deactivated via
TProof::SetRealTimeLog(kFALSE)
(for BUILD.sh - executed externally - is always ON).
In particular, with the patch applied, the outputs from BUILD.shi
will scroll down on the screen, and clicking on "Show logs" in the
dialog box during process shows the messages and allows to see what
the session is doing: this is quite nice, because getting
an empty window from "Show Logs" is frustrating, in my opinion.
So, all this fixes the bug/request #16845.
The patch also fixes bug #22555 (hanging while enabling a package
without BUILD.sh) and several other small bugs (a couple of unitialized
variables) or typos.
It also cleanups the API a bit (we had SetQueryType and SetQueryMode
doing exactly the same thing ...).
Revision
17412 -
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Modified
Sat Jan 20 19:29:35 2007 UTC (8 years ago) by
brun
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 19557 byte(s)
Diff to
previous 17393
-Remove Varargs.h from TString.h and TObject.h and add this include
in the few files that need it.
-Move the following enums from TBuffer.h to TBufferFile.h
enum { kMapSize = 503 };
enum { kStreamedMemberWise = BIT(14) }; //added to version number to know if a collection has been stored member-wise
enum { kNotDecompressed = BIT(15) }; //indicates a weird buffer, used by TBasket
enum { kCannotHandleMemberWiseStreaming = BIT(17), //if set TClonesArray should not use memeber wise streaming
kTextBasedStreaming = BIT(18) }; // indicates if buffer used for XML/SQL object streaming
Revision
17035 -
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Modified
Sun Dec 3 23:34:04 2006 UTC (8 years, 1 month ago) by
rdm
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 19481 byte(s)
Diff to
previous 16969
From Gerri:
0. Introduction of the static:
TProof::Mgr(const char *url)
to get the manager to the cluster; this gives access to all the manager
functionality, included Reset(). TProof::Reset() is removed.
1. Two new classes: TProofLog and TProofLogElem.
TProofLog contains a list of TProofLogElem, one per node. TProofLogElem
basically contains a TMacro plus methods to play with it.
2. The TProofLog object can be retrieved via the manager:
TProofLog *pl = TProof::Mgr("cluster")->GetSessionLogs()
by default the last session is retrieved: the signature for GetSessionLogs is
TProofLog *TProofMgr::GetSessionLogs(Int_t ridx, const char *stag)
the first argument is a reversed relative index (-1 gets the next to last
session), the second is the session unique tag; if the second is
specified the first is ignored.
3. TProofMgr has a new method ReadBuffer to quickly read a buffer from
a file via XrdProofd: this allows to avoid the second xrootd on the
redirector and in general is useful when a quick reading is needed.
Also, the buffer is always retrieved via the master, so we should not
have firewall problems in accessing directly the xrootd of the workers.
4. In the sandbox I have kept the .sessions file with the active sessions
and I have added .terminated in each session working dir which have
been terminated. On the master, each session working dir has the file
.workers with the relevant information about the workers.
5. The max number of old session workdirs is set to 10 by default
(configurable in xpd.cf): the sandbox is trimmed when closing a session.
6. Some unrelated changes/fixes contained in the patch:
- in XrdProofdProtocol:
- use of /proc (linux, solaris) or sysctl (mac) to verify/search
for running of a process. For other platforms I have left the
parsing of the output of 'ps'.
- I have introduced a 'cron' thread: it runs every minute and for
the moment it just cleans a vector; this is the place where to do
client independent actions, like checking if the config files have
changed, for example.
- I have added the possibility to control which user can access
the cluster; requested by Jan Fiete.
7. The patch contains also several fixes here and there I have found by
testing.
Revision
16839 -
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Modified
Mon Nov 20 15:56:36 2006 UTC (8 years, 2 months ago) by
rdm
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 19510 byte(s)
Diff to
previous 16775
From Maarten + Gerri:
Patch to allow run time configuration of proofserv environment. The client
can pass a set of shell variables to PROOF. These variables can be used
to startup different versions of the proofserv, or they can instruct the
system to run proofserv under valgrind or tcheck, etc. Main changes:
- default wrapper script for proofserv
- modifies the build system for the wrapper script
- adds a list of environment variables to TVirtualProof, which are
passed to the wrapper by proofd/xrootd.
- adds code to TProofServ to pickup these variables and pass them
along to the slaves/submasters
Revision
16775 -
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Modified
Wed Nov 15 17:45:55 2006 UTC (8 years, 2 months ago) by
rdm
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 18246 byte(s)
Diff to
previous 16460
From Gerri and Bertrand:
Fixes and new features developed in preparation for the Intel quad-core
launch demo:
- Add instantaneous event and MB processing rates in the Progress signal
and make necessary modification to exploit it in the Progress Dialog.
- Add possibility to change the Progress and Feedback periods
- A number of small improvements and bug fixes
Revision
15930 -
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Modified
Sat Aug 5 20:04:47 2006 UTC (8 years, 5 months ago) by
brun
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 18208 byte(s)
Diff to
previous 15507
From Gerri:
I have realized that the new tarball requires the mods to the XrdProofd plugin
that I wanted to keep separated. This explains the problem on Mac (and also
everywhere the plug-in is build).
It also contains the fix of the problem mention by Fons with selectors from a library.
Revision
15507 -
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Modified
Wed Jun 21 16:18:27 2006 UTC (8 years, 7 months ago) by
rdm
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 18181 byte(s)
Diff to
previous 15338
From Gerri:
The patch implements the following new functionality:
- Shutdown of idle sessions when quitting ROOT; if not idle the session
is shutdown as soon as processing terminates; it is possible to delay
the automatic shutdown by a tunable amount of time via a new directive
in the xrootd config file 'xpd.shutdown' (see xpd.cf.example).
- New static method TProof::Reset(const char *url) to hard-cleanup an
user area (implemented for Xproofd only); this implied quite some
additions in XrdProofdProtocol.
- Possibility to temporary remove / re-insert a worker from the active list
TProof::DeactivateWorker(const char *ord)
TProof::ActivateWorker(const char *ord)
with 'ord' the ordinal numer, e.g. "0.3" .
- A default url for the disk pool
const char *TVirtualProof::GetDataPoolUrl()
It is set by default to a string send back by the master, but it can
be changed via
void TVirtualProof::SetDataPoolUrl(const char *url)
Jan should then adapt his code to use this as default.
- Posibility to timeout Collect; for now this is only used at forced
termination.
The patch includes many small changes and bug fixes. One of the most important
is in TXNetSystem (a bug preventing correct treatment of multiple request
to the same redirector).
Revision
15338 -
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Modified
Mon Jun 5 22:51:14 2006 UTC (8 years, 7 months ago) by
rdm
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 17570 byte(s)
Diff to
previous 15312
From Gerri:
base/inc/TVirtualProof.h, proof/inc/TProof.h, proof/src/TProof.cxx
proof/src/TProofProgressDialog.cxx:
- fix a problem with the progress dialog when detaching a session:
a new signal CloseProgressDialog() is introduced, as well as the
possibility to empty the list of submitted queries at once via
TProof::Remove().
proofx/inc/TXHandler.h, .cxx:
- add generic argument to HandleInput() and HandleError().
proofx/inc/TXProofMgr.h, .cxx:
- move to new signature for HandleInput(), HandleError().
proof/inc/TSlave.h:
- add method to flush underlying socket.
proofx/inc/TXSlave.h, .cxx:
- move to new signature for HandleInput(), HandleError().
- implement new method to flush underlying socket.
proofx/inc/TXSocket.h, .cxx:
- Add method to flush socket.
- Handle interrupt messages in the reader thread.
- Remove interrupt semaphore (not needed any more).
- Remove timeout argument from GetInterrupt (not needed any more).
proofx/inc/TXProofServ.h, .cxx:
- move to new signature for HandleInput(), HandleError().
- implement interrupt handling in HandleInput().
- implement dedicated version of LockSession to deal with new format
of session tag (this is a bug fix).
proofd/inc/XrdProofConn.h, .cxx:
- Add mutex protection in the SendRecv method (it can be called from both
the reader and main threads).
proofd/src/XrdProofdProtocol.cxx:
- use an asynchronous message (instead of a signal) for interrupts.
proofx/inc/LinkDef.h, TXSocketHandler.h, .cxx, TXUnixSocket.cxx:
- add TXSocketHandler in the dictionary.
- cosmetics.
Revision
15312 -
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Modified
Fri Jun 2 15:14:35 2006 UTC (8 years, 7 months ago) by
rdm
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 17275 byte(s)
Diff to
previous 14752
From Gerri:
large PROOF patch. Main issues addressed:
- Output redirection to log file at 'proofserv' startup (instead of
after Setup())
- Log messages activated at session creation
- Session sandbox restructuring in such a way that the unique session
tag, created by the top master, uniquely identifies the session on
all nodes, for example on top master:
<User_Sandbox>/session-<top_master_session_tag>/
master-0-<top_master_session_tag>/master-0-<top_master_session_tag>.log
On worker 0.0
<User_Sandbox>/session-<top_master_session_tag>/
worker-0.0-<worker_0.0_session_tag>/worker-0.0-<worker_0.0_session_tag>.log
- Automatic creation of the dataset dir
- Improved handling of error conditions
- Reorganization of TProofServ and XrdProofdProtocol
- Several bug fixes, in particular in XrdProofdProtocol
Revision
14752 -
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Modified
Wed Apr 19 10:57:44 2006 UTC (8 years, 9 months ago) by
rdm
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 15132 byte(s)
Diff to
previous 14745
From Gerri:
This is the big patch.
Comments:
- Client side:
- Remove use of plugin manager to avoid unwanted locks
- Improved treatment of error conditions
- Server side:
- Several new functionalities described in the release notes
Revision
14745 -
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Modified
Wed Apr 19 08:22:26 2006 UTC (8 years, 9 months ago) by
rdm
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 11585 byte(s)
Diff to
previous 14128
Change the TError.h macros:
Assert -> R__ASSERT
Check -> R__CHECK
Change the TCollection.h macro:
ForEach -> R__FOR_EACH
This to avoid potential problems due too trivial macro names.
The old macros will be removed in the next release. Currently
they will print out warning messages with the advice to move
to the new macro names.
Revision
13648 -
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Added
Mon Dec 12 12:54:27 2005 UTC (9 years, 1 month ago) by
rdm
Original Path:
trunk/proofx/src/TXSlave.cxx
File length: 11863 byte(s)
From Gerri:
- last part of the major PROOF upgrade to support disconnect/reconnect
features using the libXrdProofd.so xrootd plugin.
More on how to configure and run with xrootd/xproofd coming very soon.
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