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    Plugin that captures Ceph usage information. This only works if the client
    runs on one of the Ceph monitor nodes, and noops otherwise.

    The plugin requires the 'python-ceph' package to be installed, which is the
    case on a standard "ceph" charm deployment.
    The landscape-client charm should join a ceph-client relation with the ceph
    charm, which will crete a keyring and config file for the landscape-client
    to consume in <data_path>/ceph-client/ceph.landscape-client.conf. It
    contains the following:

    [global]
    auth supported = cephx
    keyring = <keyring-file>
    mon host = <ip>:6789

    The configured keyring can be generated with:

    ceph-authtool <keyring-file> --create-keyring
        --name=client.landscape-client --add-key=<key>
    s
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ceph-usagettypesring-idsceph-usagessdata-points(RR(Rtceph_pointstring_id((s?/usr/lib/python2.7/dist-packages/landscape/monitor/cephusage.pytcreate_messageKs			
cCsF|j}|drB|drB|jjj||jd|ndS(Nsring-idsdata-pointsturgent(R/RtbrokerR+t_session_id(RR0tmessage((s?/usr/lib/python2.7/dist-packages/landscape/monitor/cephusage.pyR+TscCs |jjjd|j|dS(Ns
ceph-usage(RR1tcall_if_acceptedR+(RR0((s?/usr/lib/python2.7/dist-packages/landscape/monitor/cephusage.pytexchangeZscCsC|jsdS|jjtj|j}|j|j|S(N(t_should_runR$tpingRt
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	%cCsatd|jddC}|j}|jdkrWt|jd}||_nWdQX|S(sThe actual Rados interaction.tconffiletrados_idslandscape-clientsutf-8N(RRRRRtunicodetget_fsid(Rtclustert
cluster_statstfsid((s?/usr/lib/python2.7/dist-packages/landscape/monitor/cephusage.pyR9ysc
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dg}t|j}g}xH|D]@\}}||d}|j||d|}|j|q.Wt|sd	S|d
g}	|	jd|D|jjt|	d	S(sA method to use as callback to the rados interaction.

        Parses the output and stores the usage data in an accumulator.
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RRFt	names_mapt	timestamptstep_valuestnametkeytvalueRPtpoint((s?/usr/lib/python2.7/dist-packages/landscape/monitor/cephusage.pyR;s
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