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vbucket-seqno

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    Provides seqno statistics for vBuckets.

    Syntax

    Request syntax:

    cbstats host:11210 [common options] vbucket-seqno [vbid]

    Description

    This command provides details connected to the sequence number (seqno) for the specified vBucket, or for each vBucket if none is specified.

    The identifier for each vBucket statistic begins with the string vb_ followed by the vBucket ID and a colon. For example, for vBucket 1023, the identifier for the uuid statistic is vb_1023:uuid.

    Table 1. vBucket seqno statistics
    Name Description

    abs_high_seqno

    The last seqno assigned by this vBucket.

    high_seqno

    The last seqno assigned by this vBucket, or in case of replica, the last closed checkpoint’s end seqno.

    last_persisted_seqno

    The last persisted seqno for the vBucket.

    purge_seqno

    The last seqno purged by the compactor.

    uuid

    The current vBucket uuid.

    last_persisted_snap_start

    The last persisted snapshot start seqno for the vBucket.

    last_persisted_snap_end

    The last persisted snapshot end seqno for the vBucket.

    Options

    Table 2. vbucket-seqno options
    Option Description

    vbid

    vBucket ID. In a standard system this will be between 0 and 1023. If not provided as part of the command then details for all vBuckets are shown.

    For common cbstats options, see cbstats.

    Example

    Request

    cbstats localhost:11210 -u Administrator -p password -b beer-sample vbucket-seqno 1023

    Response

     vb_1023:abs_high_seqno:            10
     vb_1023:high_seqno:                10
     vb_1023:last_persisted_seqno:      10
     vb_1023:last_persisted_snap_end:   10
     vb_1023:last_persisted_snap_start: 10
     vb_1023:purge_seqno:               0
     vb_1023:uuid:                      66069026212209