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267654 |
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19-Jun-2014 |
gjb |
Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
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225736 |
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22-Sep-2011 |
kensmith |
Copy head to stable/9 as part of 9.0-RELEASE release cycle.
Approved by: re (implicit)
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219873 |
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22-Mar-2011 |
pjd |
The proto API is a general purpose API, so don't use 'hast' in structures or function names. It can now be used outside of HAST.
MFC after: 1 week
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219818 |
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21-Mar-2011 |
pjd |
In hast.conf we define the other node's address in 'remote' variable. This way we know how to connect to secondary node when we are primary. The same variable is used by the secondary node - it only accepts connections from the address stored in 'remote' variable. In cluster configurations it is common that each node has its individual IP address and there is one addtional shared IP address which is assigned to primary node. It seems it is possible that if the shared IP address is from the same network as the individual IP address it might be choosen by the kernel as a source address for connection with the secondary node. Such connection will be rejected by secondary, as it doesn't come from primary node individual IP.
Add 'source' variable that allows to specify source IP address we want to bind to before connecting to the secondary node.
MFC after: 1 week
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218194 |
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02-Feb-2011 |
pjd |
- Rename proto_descriptor_{send,recv}() functions to proto_connection_{send,recv} and change them to return proto_conn structure. We don't operate directly on descriptors, but on proto_conns. - Add wrap method to wrap descriptor with proto_conn. - Remove methods to send and receive descriptors and implement this functionality as additional argument to send and receive methods.
MFC after: 1 week
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218193 |
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02-Feb-2011 |
pjd |
Add proto_connect_wait() to wait for connection to finish. If timeout argument to proto_connect() is -1, then the caller needs to use this new function to wait for connection.
This change is in preparation for capsicum, where sandboxed worker wants to ask main process to connect in worker's behalf and pass descriptor to the worker. Because we don't want the main process to wait for the connection, it will start async connection and pass descriptor to the worker who will be responsible for waiting for the connection to finish.
MFC after: 1 week
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218192 |
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02-Feb-2011 |
pjd |
Allow to specify connection timeout by the caller.
MFC after: 1 week
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218139 |
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31-Jan-2011 |
pjd |
Implement two new functions for sending descriptor and receving descriptor over UNIX domain sockets and socket pairs. This is in preparation for capsicum.
MFC after: 1 week
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210869 |
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05-Aug-2010 |
pjd |
Add an argument to the proto_register() function which allows protocol to declare it is the default and be placed at the end of the queue so it is checked last.
MFC after: 1 month
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204076 |
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18-Feb-2010 |
pjd |
Please welcome HAST - Highly Avalable Storage.
HAST allows to transparently store data on two physically separated machines connected over the TCP/IP network. HAST works in Primary-Secondary (Master-Backup, Master-Slave) configuration, which means that only one of the cluster nodes can be active at any given time. Only Primary node is able to handle I/O requests to HAST-managed devices. Currently HAST is limited to two cluster nodes in total.
HAST operates on block level - it provides disk-like devices in /dev/hast/ directory for use by file systems and/or applications. Working on block level makes it transparent for file systems and applications. There in no difference between using HAST-provided device and raw disk, partition, etc. All of them are just regular GEOM providers in FreeBSD.
For more information please consult hastd(8), hastctl(8) and hast.conf(5) manual pages, as well as http://wiki.FreeBSD.org/HAST.
Sponsored by: FreeBSD Foundation Sponsored by: OMCnet Internet Service GmbH Sponsored by: TransIP BV
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