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This patch makes the server pass back the transport pointer of the client. If the UUID matches, the client makes the local transport 'shortcut' with the remote transport (pointer received from server)
The shortcut simulates a socket queue. Instead of serialized messages going over the network and getting queued in the tcp socket queue, the messages get queued in a transport specific queue picked by a polling thread.
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Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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guard server_writev from 0-byte writes from client where iobuf will be NULL. This is possible only via libglusterfsclient (not fuse)
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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steps:
- server_finodelk uses req->volume pointer into state->volume
- finodelk is queued by locks translator
- c call returns from server_pollin and hdr is FREE'd
- now state->volname is pointing to FREE'ed region (junk)
- server_finodelk_cbk calls gf_add_locker
- gf_add_locker remembers lock with junked path along with fd_ref
- gf_del_locker from new server_finodelk cannot string match with junked volume thus
lock is not deleted, hence fd_ref remains as a leak
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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- logging made more relevent.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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in server volume define, "option verify-volfile-checksum no" to disable
the checksum feature.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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- first phase, which happens when POLLERR is received on transport,
releases all locks, flushes all open fds.
- second phase, which happens when both the transports of connection destroyed,
destroys the containers like lock table, fd table along with the connection.
- the first phase, clears up any references to transport held by translators
like posix-locks(in the form of blocked locks) paving way for the second phase.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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Complete (including feature to properly umount) in my sense.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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updated copyright header to include 2009.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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Noticed that with current codebase, there is no proper method to have a default volume filename to choose in getspec() without printing a *lot* of warning messages. This patch tries to have a proper 'default' behavior.
Signed-off-by: Anand V. Avati <avati@amp.gluster.com>
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