394eea0231
This driver implements the storagedriver.StorageDriver interface and
uses Ceph Object Storage as storage backend.
Since RADOS is an object storage and no hierarchy notion, the
following convention is used to keep the filesystem notions stored in
this backend:
* All the objects data are stored with opaque UUID names prefixed
(e.g. "blob:d3d232ff-ab3a-4046-9ab7-930228d4c164).
* All the hierarchy information are stored in rados omaps, where the
omap object identifier is the virtual directory name, the keys in
a specific are the relative filenames and the values the blob
object identifier (or empty value for a sub directory).
e.g. For the following hierarchy:
/directory1
/directory1/object1
/directory1/object2
/directory1/directory2/object3
The omap "/directory1" will contains the following key / values:
- "object1" "blob:d3d232ff-ab3a-4046-9ab7-930228d4c164"
- "object2" "blob:db2e359d-4af0-4bfb-ba1d-d2fd029866a0"
- "directory2" ""
The omap "/directory1/directory2" will contains:
- "object3" "blob:9ae2371c-81fc-4945-80ac-8bf7f566a5d9"
* The MOVE is implemented by changing the reference to a specific
blob in its parent virtual directory omap.
This driver stripes rados objects to a fixed size (e.g. 4M). The idea
is to keep small objects (as done by RBD on the top of RADOS) that
will be easily synchronized accross OSDs. The information of the
original object (i.e total size of the chunks) is stored as a Xattr
in the first chunk object.
Signed-off-by: Vincent Giersch <vincent.giersch@ovh.net>
120 lines
2.5 KiB
Bash
Executable File
120 lines
2.5 KiB
Bash
Executable File
#! /bin/bash
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#
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# Ceph cluster setup in Circle CI
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#
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set -x
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set -e
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set -u
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NODE=$(hostname)
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CEPHDIR=/tmp/ceph
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mkdir cluster
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pushd cluster
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# Install
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retries=0
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until [ $retries -ge 5 ]; do
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pip install ceph-deploy && break
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retries=$[$retries+1]
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sleep 30
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done
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retries=0
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until [ $retries -ge 5 ]; do
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ceph-deploy install --release hammer $NODE && break
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retries=$[$retries+1]
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sleep 30
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done
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retries=0
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until [ $retries -ge 5 ]; do
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ceph-deploy pkg --install librados-dev $NODE && break
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retries=$[$retries+1]
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sleep 30
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done
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echo $(ip route get 1 | awk '{print $NF;exit}') $(hostname) >> /etc/hosts
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ssh-keygen -t rsa -f ~/.ssh/id_rsa -q -N ""
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cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
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ssh-keyscan $NODE >> ~/.ssh/known_hosts
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ceph-deploy new $NODE
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cat >> ceph.conf <<EOF
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osd objectstore = memstore
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memstore device bytes = 2147483648
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osd data = $CEPHDIR
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osd journal = $CEPHDIR/journal
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osd crush chooseleaf type = 0
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osd pool default size = 1
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osd pool default min size = 1
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osd scrub load threshold = 1000
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debug_lockdep = 0/0
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debug_context = 0/0
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debug_crush = 0/0
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debug_buffer = 0/0
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debug_timer = 0/0
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debug_filer = 0/0
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debug_objecter = 0/0
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debug_rados = 0/0
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debug_rbd = 0/0
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debug_journaler = 0/0
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debug_objectcatcher = 0/0
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debug_client = 0/0
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debug_osd = 0/0
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debug_optracker = 0/0
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debug_objclass = 0/0
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debug_filestore = 0/0
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debug_journal = 0/0
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debug_ms = 0/0
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debug_monc = 0/0
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debug_tp = 0/0
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debug_auth = 0/0
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debug_finisher = 0/0
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debug_heartbeatmap = 0/0
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debug_perfcounter = 0/0
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debug_asok = 0/0
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debug_throttle = 0/0
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debug_mon = 0/0
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debug_paxos = 0/0
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debug_rgw = 0/0
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osd_op_num_threads_per_shard = 1 //You may want to try with 1 as well
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osd_op_num_shards = 5 //Depends on your cpu util
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ms_nocrc = true
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cephx_sign_messages = false
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cephx_require_signatures = false
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ms_dispatch_throttle_bytes = 0
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throttler_perf_counter = false
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[osd]
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osd_client_message_size_cap = 0
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osd_client_message_cap = 0
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osd_enable_op_tracker = false
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EOF
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sed -i -r 's/mon_host =.*/mon_host = 127.0.0.1/' ceph.conf
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sed -i -r 's/auth_cluster_required =.*/auth_cluster_required = none/' ceph.conf
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sed -i -r 's/auth_service_required =.*/auth_service_required = none/' ceph.conf
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sed -i -r 's/auth_client_required =.*/auth_client_required = none/' ceph.conf
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# Setup monitor and keyrings
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ceph-deploy mon create-initial $NODE
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ceph-deploy admin $NODE
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sudo chmod a+r /etc/ceph/ceph.client.admin.keyring
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# Setup OSD
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mkdir -p $CEPHDIR
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OSD=$(ceph osd create)
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ceph osd crush add osd.${OSD} 1 root=default host=$NODE
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ceph-osd --id ${OSD} --mkjournal --mkfs
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ceph-osd --id ${OSD}
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# Status
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ceph status
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ceph health detail
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ceph osd tree
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popd
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