transaction_log
Clicking the transaction_log
link will display the statistics that AMPS gathers for the transaction log, if one is configured.
Metric
Description
Type
journals
A list of all journal file names.
snapshot
max_timestamp
The largest timestamp in the transaction log.
snapshot
min_timestamp
The smallest timestamp in the transaction log.
snapshot
write_latency
Statistics covering the latency of writes to the transaction log.
snapshot
write_size
Statistics covering the size of writes to the transaction log.
snapshot
Statistics Database Tables: ITRANSACTION_LOG_DYNAMIC
, ITRANSACTION_LOG_STATIC
, ITRANSACTION_WRITE_LATENCY_DYNAMIC
, ITRANSACTION_LOG_WRITE_LATENCY_STATIC
, ITRANSACTION_WRITE_SIZE_DYNAMIC
, ITRANSACTION_LOG_WRITE_SIZE_STATIC
Admin Path: /amps/instance/transaction_log/<metric>
Selecting the journals
resource will list all journal file names. Selecting a single journal will show the following details:
Metric
Description
Type
file_name
The file name of the selected journal.
fixed
min_timestamp
The smallest timestamp of the journal.
fixed
max_timestamp
The largest timestamp of the journal.
fixed
is_archived
Whether or not the journal is archived.
snapshot
is_compressed
Whether or not the journal is compressed.
snapshot
Admin Path: /amps/instance/transaction_log/journals/<id>/<metric>
The write_latency
and write_size
metrics contain the following details:
Metric
Description
Type
histogram
An ASCII histogram of the monitored statistic.
snapshot
minimum
The lowest observed sample of the statistic, in microseconds or bytes.
snapshot
maximum
The largest observed sample of the statistic, in microseconds or bytes.
snapshot
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